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Prof. R. A. U. J. Marapana

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Prof. R. A. U. J. Marapana

Prof. R. A. U. J. Marapana
B.Sc. Agric. (Hons) (Peradeniya), M.Sc. (Food Sci & Tech) (USJ), Ph.D. (Southern Yangtze) (China)

Professor
umarapana@sci.sjp.ac.lk; umarapana@yahoo.com

Research Interests: Food Processing and Preservation, Dairy Processing and Technology & value-addition, Fruits and Vegetable Processing & value-addition, Animal Feed Technology

Publications

Peer-Reviewed Journal Articles

  1. Batuwitage Kosambi Hansini Hirupraba Batuwita, Jayasinghe Mudalige Jagath Kumara Jayasinghe, Rajapaksha Arachchillage Upul Janapriya Marapana, Chamila Vinodanee Liyanage Jayasinghe (2026) Reducing Acrylamide Formation and Improving Frying Oil Quality of Spring Rolls Covered With Bread Crumbs: Effective Use of Curry Leaf (Murraya koenigii) Powder and Cumin (Cuminum cyminum L.) Seed Powder. Applied Research 2026; 5(3) e 70104 pg 1-17 https://doi.org/10.1002/appl.70104
  2. Batuwitage Kosambi Hansini Hirupraba Batuwita, Jayasinghe Mudalige Jagath Kumara Jayasinghe, Rajapaksha Arachchillage Upul Janapriya Marapana, Chamila Vinodanee Liyanage Jayasinghe (2026) Effect of processing parameters and citric acid pre-treatment on acrylamide formation in deep-fried yellow split pea (Pisum sativum) vade. Food Additives and Contaminants: Part A 43 (6):882 -906 https://doi.org/10.1080/19440049.2026.2653544
  3. Chamodi Gunathunga, Suraji Senanayake, Madhura Jayasinghe,Charles Stephen Brennan, Tuyen Truong, Upul Marapana, and Jayani Chandrapala (2026) Characterisation of malted milk powders enriched with bioactive compounds by germinated rice, maize, and green gram. International Journal of Food Science and Technology, 2026, 61(1), vvaf195 https://doi.org/10.1093/ijfood/vvaf195
  4. GGNT Dharmarathne, HT Kodithuwakku, PDeA Abeysundara, RMSM Rajapaksha and RAUJ Marapana (2025) Pesticide Usage and Comparative Analysis of Pesticide Residues in Conventionally Grown and Organic-Certified Vegetables in North Central Province, Sri Lanka. The Journal of Agricultural Sciences – Sri Lanka, Vol. 20 No 3, September 2025. Pp 365-376 https://doi.org/10.4038/jas.v20i3.10274
  5. Nishmitha Ramaraj, Gobika Thiripuranathar, Sagarika Ekanayake, Keerthi Attanayake and Upul Marapana, (2025) Phyco-synthesized inorganic nanoparticles and their biomedical applications, RSC Sustainability, 3, 2567-2581 DOI: 10.1039/d5su00014a
  6. RASN Ranasinghe, WLI Wijesekarahttps, SA Senanayake, PRD Perera, MM Pathmalal and RAUJ Marapana (2025) The impact of in vitro gastrointestinal hydrolysis on the antioxidant activity of gelatin extracted from jellyfish Acromitus flagellates. Journal of Food Science and Technology accepted on 21st February 2025 Published on 13th March 2025
  7. D S Shanuke, E M R K B Edirisinghe, R A U J Marapana, S Hettiarachi (2025) Development of omega-3 fortified stirred yoghurt with enhanced sensory and oxidative qualities through the addition of fish oil nanoemulsion and fruits. International Journal of Food Science and Technology, 60(1) January 2025,vvae034
  8. S.C. Rangani, R.A.U.J. Marapana, G.S.A. Senanayake, P.R.D. Perera, M.M. Pathmalal and H.K. Amarasinghe (2025) Alkaloids and Nitrosamines in Betel Quid: A Biochemical Exploration of Carcinogenicity. Chemico-Biological Interactions 407 (2025) 111383
  9. A. D. R. Madurangi and R. A. U. J. Marapana (2025) Evaluating the Effectiveness of Blanching as a Pre-treatment to Minimize Surface White Discoloration on Pickled Carrots. Reasearch and Innvation in Food Science and Technology, 14(1), 1-14
  10. W.A.Y.A. Wickramaarachchi, G.S.A. Senanayake and R.A.U.J. Marapana (2024) The comparison of compositional quality of milk and physicochemical properties of milk fat of indigenous cattle breed of Sri Lanka with locally reared pure European cattle breeds. Current Scientia 27 No.02 (2024) 57-67
  11. R.A.S.N. Ranasinghe, W.L.I. Wijesekara, S.A. Senanayake,P.R.D. Perera, M.M. Pathmalal, R.A.U.J. Marapana (2024) Preservation of strawberries using jellyfish gelatin-based biodegradable films and coatings under refrigerated storage. Food Science and Technology International
  12. P. Gayani I. Dias, R.A. Upul J. Marapana, R.M. Udaya S.K. Rathnayaka, S.M.D. Sadhana Gayathri, N.G. Darshana Anuradha, Thilini C. Kananke, R.M. Kapila T. Rathnayaka, M.G.A. Namal Perera, Rasangani S. Sabaragamuwa and M. Nirmali Wickramaratne (2024) Identification of the best plant ratios for a polyherbal tea mix to obtain optimum antioxidant, antidiabetic, and β-glucuronidase inhibition activities. Journal of Ayurveda and Integrative Medicine 15 (2024) 101053
  13. R.A.S.N. Ranasinghe, W.L.I. Wijesekara, P.R.D. Perera, S.A. Senanayake, M.M. Pathmalal, R.A.U.J. Marapana (2024) Effect of extraction methods on the yield and gel strength of gelatin extracted from jellyfish Acromitus flagellates. International Journal of Multidisciplinary Studies (IJMS) 11(2) 63-77
  14. Chamodi Gunathunga, Suraji Senanayake, Madhura Jayasinghe, Charles Stephan Brennan, Tuyen Truong, Upul Marapana & Jayani Chandrapala (2024) Bioactive compounds and digestible starch variability of rice, maize, green gram, and soy grains with different levels of germination. International Journal of Food Science and Technology, 59(12) 9273 – 9286
  15. B. K. H. H. Batuwita, J.M.J. K. Jayasinghe, R. A. U. J. Marapana, C. V. L. Jayasinghe and B. K. K. K. Jinadasa (2024) Reduction of Asparagine and Reducing Sugar Content, and Utilization of Alternative Food Processing Strategies in Mitigating Acrylamide Formation—A Review. Food and Bioprocess Technology 18(3), 2101 – 2144
  16. B. K. H. H. Batuwita , J. M. J. K. Jayasinghe , R. A. U. J. Marapana and C. V. L. Jayasinghe (2024) Application of cations, acids, and antioxidants on mitigating acrylamide formation in food with a special focus on potato and cereal based foods – A Review. Current Scientia 27 No.01 (2024) 79-92
  17. R.A.S.N. Ranasinghe, S.A. Senanayake, W.L.I. Wijesekara, P.R.D. Perera, M.M. Pathmalal and, R.A.U.J. Marapana (2024) Characterization of biodegradable films prepared from gelatin extracted from jellyfish Acromitus flagellates using hot water extraction and microwave-assisted extraction. Food Packaging and Shelf Life 44 (2024) 101315
  18. Chamodi Gunathunga, Suraji Senanayake, Madhura Arunoda Jayasinghe, Charles Stephen Brennan, Tuyen Truong, Upul Marapana and Jayani Chandrapala (2024) Germination effects on nutritional quality: A comprehensive review of selected cereals and pulses changes Journal of Food Composition and Analysis 128 (2024) 106024
  19. P. Gayani I. Dias, R.A. Upul J. Marapana and R.M. Udaya S.K. Rathnayaka (2023) Production and quality evaluation of herbal tea mixtures from Phyllanthus Debilis, Osbeckia octandra, and Artrocarpus heterophyllus leaves. Sumatera Medical Journal (SUMEJ) Vol. 6, No. 3, 2023 | 198 – 207
  20. K.O.G.H. Ruwanthika, M.L.A.M.S. Munasinghe and R.A.U.J. Marapana (2023) Nutrient analysis of local pumpkin varieties (Cucurbita spp.) grown in dry zone of Sri Lanka and development of a value-added product Current Scientia 26 No. 01 (2023) 46-66
  21. K.O.G. Himani Ruwanthika, M.L.A. Mayuri S. Munasinghe and R.A. Upul J. Marapana (2023) Overview of Cucurbita spp. (pumpkin) and development of value-added products emphasizing its nutritional and chemical composition. World Journal of Advanced Research and Reviews, 18(02), 1215–1226
  22. S.C. Rangani, R.A.U.J. Marapana, G.S.A. Senanayake, P.R.D. Perera, M.M. Pathmalal, H. K. Amarasinghe (2023) Correlation analysis of phenolic compounds, antioxidant potential, oxygen radical scavenging capacity, and alkaloid content in ripe and unripe Areca catechu from major cultivation areas in Sri Lanka. Applied Food Research 3 (2023) 100361
  23. R. A. U. J. Marapana, W. M. P. B. Weerasinghe, G. S. A. Senanayake, P. R. D. Perera, T. R. Seresinhe, R. A. S. N. Ranasinghe and R. A. A. P. Marapana (2023) Conversion of energy and protein rich food waste as an alternative feed ingredient in broiler feed formulation Tropical Animal Health and Production 55:101
  24. P. G. I. Dias, R. A. U. J. Marapana, R. M. U. S. K. Rathnayaka, S. M. D. S. Gayathri, N. G. D. Anuradha, T. C. Kananke, R. M. K. T. Rathnayaka, M. G. A. N. Perera, R. S. Sabaragamuwa, N. M. Wickramaratne (2023) Consumers’ Knowledge, Attitudes, and Behavior Regarding Functional Food Products-A Survey from Selected Areas of Sri Lanka. Journal of Agricultural Sciences 18(1):140-153
  25. R. A. S. N. Ranasinghe, W. L. I. Wijesekara, P. R. D. Perera,S. A. Senanayake,M. M. Pathmalal, R. A. U. J. Marapana (2022) Nutritional Value and Potential Applications of Jellyfish. Journal of Aquatic Food Product Technology, 31(5) : 445-482
  26. R. A. S. N. Ranasinghe, W. L. I. Wijesekara, P. R. D. Perera, S. A. Senanayake, M. M. Pathmalal and R. A. U. J. Marapana. (2022) Functional and Bioactive Properties of Gelatin Extracted from Aquatic Bioresources – A Review Food Reviews International 38(4): 812 – 855 https://doi.org/10.1080/87559129.2020.1747486
  27. M .M. W. Aponso, R. A. U. J. Marapana , A. T. Abeysundara , G. O. De Silva and R. Manawaduge (2021) Effect of Different Processing Conditions on Bioactive Compounds of Selected Grape Varieties Asian Food Science Journal 20(9): 159-168
  28. P. D. S. Senarathna and R. A. U. J. Marapana (2021) Comparative Analysis of the Effect of Ultrasound-Assisted and Conventional Water Bath Extraction Methods on the Physicochemical Characteristics of Tilapia Scales Gelatin. Journal of Aquatic Food Product Technology 30 (7) 893-906 https://doi.org/10.1080/10498850.2021.1950252
  29. S.D.T. Maduwanthi and R.A.U.J. Marapana (2021) Comparison of pigments and some physicochemical properties of banana as affected by ethephon and acetylene induced ripening Biocatalysis and Agricultural Biotechnology Volume 33, May 2021, 101997
  30. Sheba Culas , R. A. U. J Marapana, I. R. Palangasinghe and A. C. Liyanage Development of Liquid-Based Tea and Its Antidiabetic Effect. Hindawi Journal of Chemistry Volume 2021, Article ID 8863936, 6 pages https://doi.org/10.1155/2021/8863936
  31. R.M.D.E. Premarathne, R.A.U.J. Marapana and PRD Perera (2021) Determination of physiochemical characteristics and antioxidant properties of selected climacteric and Non – climacteric fruits. Journal of Pharmacognosy and Phytochemistry 10(3): 23-28.
  32. Dilini N. Perera, K.K.D.S. Ranaweera, R.A.U.J. Marapana and Geeth G. Hewavitharana (2020) Development of spicy flavored virgin coconut oil by incorporating a mixture of spices oleoresins. Oil Seeds & Fats Crops and Lipids (OCL) OCL 2019, 27, 55 https://doi.org/10.1051/ocl/2020050
  33. S.D.T. Maduwanthi and R.A.U.J. Marapana (2020) Total phenolics, flavonoids and antioxidant activity following simulated gastro-intestinal digestion and dialysis of banana (Musa acuminata, AAB) as affected by induced ripening agents. Food Chemistry 339 (2021) 127909
  34. T. G. G. Uthpala, R. A. U. J. Marapana, K. P. C. Lakmini and D. C. Wettimuny (2020) Nutritional Bioactive Compounds and Health Benefits of Fresh and Processed Cucumber (Cucumis Sativus L.) Sumerianz Journal of Biotechnology, Vol. 3, No. 9, pp. 75-82
  35. Jagath Jayasinghe, Samudra Pathirana, Dhammi Dilhani, Senevirathne Navarathna, manoj Sinhapura, Chamila Jayasinghe, Rohana Chandrajith and Upul Marapana (2019) Pesticide residues in cow milk and dairy products from the major milk producing area of Sri Lanka. AGROFOR International Journal 4(3):83-90 DOI: 10.7251/AGRENG1903083J
  36. Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2019) Comparative study on aroma volatiles, organic acids and sugars of Ambul bananan (Musa acuminate, AAB) treated with induced ripening agents. Journal of Food Quality, Volume 2019, Article ID 7653154, 9 pages https://doi.org/10.1155/2019/7653154
  37. Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2019) Induced ripening agents and their effect on fruit quality of banana. Hindawi: International Journal of Food Science, Volume 2019, Article ID 2520179, 8 pages https://doi.org/10.1155/2019/2520179
  38. Ranasinghe, R. A. S. N. and Marapana, R. A. U. J. (2019) Effect of Maturity stage on physicochemical properties of jackfruit (Artocarpus heterophyllus Lam.) flesh. World Journal of Dairy & Food Sciences 14(1):17-25 DOI: 10.5829/idosi.wjdfs.2019.17.25
  39. Prameesha Perera, Helani Munasinghe and Marapana, R. A. U. J (2019) Quality assessment of selected dairy products in Sri Lankan market. Hindawi: Journal of Food Quality, Volume 2019, Article ID 6972427, 10 pages https://doi.org/10.1155/2019/6972427
  40. Ranasinghe, R. A. S. N., Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2019) Nutritional and health benefits of jackfruit (Artocarpus heterophyllus Lam.): A Review. Hindawi: International Journal of Food Science, Volume 2019, Article ID 4327183, 12 pages https://doi.org/10.1155/2019/4327183
  41. S.D.T. Maduwanthi and R.A.U.J. Marapana (2019) Smoking Treatment in Enhancing Banana Ripening and its Effects on Physical and Biochemical Attributes of Ambul Banana (Musa acuminata, AAB) Journal of Food and Agriculture 12(II): 23 – 35 DOI: http://doi.org/10.4038/jfa.v12i2.5221
  42. Marapana, R. A. U. J., Shanika, K. D. S. and Kodagoda, K. H. G. K. (2018) Development of an omega-3 fortified ice cream by using ground flaxseeds and microencapsulated fish oil as the source of omega-3. International Journal of Food Science and Nutrition 3(3):58-64
  43. Maduwanthi, S. D. T. and Marapana, R. A.U. J. (2017) Biochemical changes during ripening of banana: A review. International Journal of Food Science and Nutrition 2(5):, 166-169
  44. Marapana, R. A. U. J., Kaluarachchi, C. G., Kodagoda, K. H. G. K. and Seresinghe, R. T. (2017) Development of cheese analogue by substitution of milk fat from vegetable fats. International Journal of Food Science and Nutrition 2(4):43-46
  45. Uthpala T. G. G. and Marapana R. A. U. J. (2017) Study on Nutritional Composition on Firmness of two Gherkin ( Cucumis sativus L.) Varieties (Ajax & Vlasset) on Brine Fermentation. American Journal of Food Science and Technology 5(2), 61-63 DOI: 10.12691/ajfst-5-2-5
  46. Marapana R. A. U. J. (2016) Effect of different dress weight categories on yield part percentage and relationship of live and dress weight of broiler carcasses slaughter at different conditions. J Food Sci & Technol. Nepal, 9:31-38
  47. Hirimuthugoda, N. Y., Gamage, C. S., Marapana, R. A. U. J. and Gunarathna, S. (2016) Meat and nutritional quality analysis of clam (Geloina vaxana) Oysters (Crassostrea madrasensis) in Sri Lankan lagoons. Indian Journal of Geo-Marine Sciences 45(6), 772-777
  48. Marapana, R. A. U. J., Senanayaka, S. A., Perera, P. R. D and Jiang, B. (2016) The effect of transglutaminase as a binding agent in mixture of meat and non-meat gels on water holding properties at different cooking conditions. Tropical Agricultural Research & Extension, 19 (3&4):291-298 DOI: 10.4038/tare.v19i3-4.5361
  49. Thakshala Seresinhe, R.A.U. J. Marapana and L. Kumanayaka (2012) Role of local feed resources on the productivity and financial viability of a coconut-cattle integrated system in the southern Sri Lanka. Animal Nutrition and Feed Technology, 12(2):145-156
  50. Ganeesha De Silva and Marapana, R. A. U. J. (2012) A review on Current food allergy Journal of Food Science & Technology. Nepal 7, 14-21
  51. Seresinhe, T., Shamen H.J.D., Manawadu A. and Marapana (2012) Effects of suppliments on milk nitrogen efficiency of buffalo cows. The Journal of Animal and Plant Sciences, 22(3 Suppl.): 200-204
  52. Thakshala Seresinhe and R.A.U.J. Marapana (2011) Goat Farming Systems in the Southern Province of Sri Lanka: Feeding and Management Strategies. World Journal of Agricultural Sciences 7(4), 383-390
  53. Ganeesha De Silva, Upul Marapana, Anton Kalubowila, Nirosh Lalantha and Thakshala Seresinghe (2010) Quality changes of burger from vegetable, wheat flour with fat emulsion during frozen storage Journal of Food Science & Technology. Nepal 6, 65-68
  54. Marapana, U. and Bo J. (2009) Low salt effects on gelation and textural properties of pork batter gel enhanced by microbial transglutaminase and cooking method. Journal of Food Science & Technology. Nepal 5, 38-47
  55. Marapana, R. A. U. J. and Wijetunga S. (2009) Irradiation as an Effective Way of Microbial Control in Food Preservation and Processing Journal of Food Science & Technology. Nepal 5, 1-8
  56. W.M.C.B. Weerasinghe, R.A.U.J. Marapana and Thakshala Seresinhe (2009) Predicting body weight of cross bed buffaloes through body measurements under field conditions. Pakistan Journal of Zoology (Suppl. Ser). 9: 155-157
  57. Marapana, R.A.U.J. (2008) Inhibition of Microbes in the Presence of Lactoferrin and it’s Derivatives Journal of Food Science & Technology. Nepal 4, 12-17
  58. Upul Marapana, Jiang Bo and Yoshinori Mine (2007) Effects of MTGase and protein on Gel properties of Minced Pork after Cooking. Journal of South China University of Technology- China 35(4), 127-133 Q3
  59. Marapana, U. and Bo, J. (2007) Thermally induced gelation and functional properties of porcine leg myofibrillar Journal of Food Science China 28 (12), 66-73
  60. Marapana, U. and Bo J. (2006) Effect of microbial transglutaminase and sodium caseinate on mechanical properties of batter gel as dependence on cooking method. Journal of Food Science & Technology. Nepal 2, 63-68
  61. Marapana, R. A. U. J. and Bo Jiang (2004) Protein cross-linking in food by microbial transglutaminase (MTGase) and its application & usefulness in food industry. International Journal of Tropical Agriculture Research and Extension 7: 49-61. https://tare.sljol.info/articles/10.4038/tare.v7i0.5417
  62. Krishna Prasad Rai, Marapana, R. A. U. J., Chunhui Zhang and Wenshui Xia (2004) N-nitrosocompounds (NOCs): As chemo-hazards in muscle foods International Journal of Tropical Agriculture Research and Extension 7: 1-12. https://tare.sljol.info/articles/10.4038/tare.v7i0.5414

     

PEER REVIEWED PUBLICATIONS IN SYMPOSIUM, CONFERENCES, MEETINGS ETC

  1. P. M. U. D. Karunaratna, Marapana, R. A. U. J. and Abeysinghe, D. C. (2023) Development of an Instant Tea Beverage from Exotic Species of Nymphaea (Water lily) Flower. Proceedings of 21st Agricultural Research Symposium (2023) 495-499 3rd May Wayamba University of Sri Lanka
  2. B. K. B. Navodya, Marapana, R. A. U. J. and Abeysinghe, D. C. (2023) Replacement of Wheat Flour from Rice Flour, Avocado Flour and Pulp to Formulate a Keto-diet Support Avocado Muffin. Proceedings of 21st Agricultural Research Symposium (2023) 550-554 3rd May Wayamba University of Sri Lanka
  3. S. Karthigayinia, P.N.R.J. Amunugoda and R.A.U.J. Marapana (2023) Assessing the Present Status and the Existing Problems of Wine Industry: A Case Study of Wine Manufacturing SMEs/Companies in Sri Lanka. International Conference on Innovation and Emerging Technologies 2023 (ICIET) November 23 – 24, 2023
  4. S.D. Epa Arachchi and R.A.U.J. Marapana (2023) Effect of in vitro Digestion on Total Phenolic Content of Selected Breakfast Foods. International Conference on Innovation and Emerging Technologies 2023 (ICIET) November 23 – 24, 2023
  5. B.K.H.H. Batuwita, J.M.J.K. Jayasinghe, R.A.U.J. Marapana and C.V.L. Jayasinghe (2023) Effect of Curry Leaf (Murraya koenigii) Powder Incorporation on Acrylamide Mitigation and Antioxidant Content in Dhal Vade International Conference on Innovation and Emerging Technologies 2023 (ICIET) November 23 – 24, 2023
  6. D. S. Shanuke, R. A. U. J. Marapana , S. Hettiarachchi , E.M.R.K.B. Edirisinghe (2022) Oxidative Stability and Organoleptic Properties of Omega 3 Fish Oil Fortified and Soursop (Annona muricata) Incorporated Stirred Yoghurt. Proceedings of the International Conference on Food Research, Development and Applications, 15th February 2022, University of Sri Jayewardenepura
  7. Gunathunga P.M.C.P., Marapana, R.A.U.J., and Rumesh L. (2021) Effect of Addition of Maltodextrin on Total Polyphenol Content (TPC), Antioxidant Activity and Colour of Black Tea. Vavuniya University International Research Conference (VUIRC), 15th October 2021, University of Vavuniya. Pp 35 – 39
  8. Rusney  F.R. and Marapana, R.A.U.J. (2021) Fatty Acid Composition and Quality Characteristics of Oil Extracted from Head of Shortfin Scad (Decapterus macrosma). Vavuniya University International Research Conference (VUIRC), 15th October 2021, University of Vavuniya. Pp75-79
  9. Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2018) Comparative study of organic acid variations of ambul banana (Musa acuminate, AAB) as affected by different ripening agents. International Research Symposium on Postharvest Technology. 19th October 2018 at National Institute of Post-Harvest Management, Anuradhapura pp 1-6
  10. Amunugoda, P. N. R. J., Jayasinghe, G. D. D. R., Abeysekera, W. K. S. M., Jayawardane, T. M. D. A., Fernando, I. M. Marapana, R. A. U. J. and Ranasinghe, P. (2016) Effect of thermal and non-thermal processing techniques on physic-chemical, microbiological and sensory properties of ready to serve health beverage.  6th International Symposium on Engineering Advancements. PP 183-186
  11. Wijemanna, N. D., Divisekera, D. M. W. D., Hewajulige, I. G. N., Gunasekara, M. M. N. P., Goonaratne, J. and Marapana, R. A. U. J.  (2015) Determination of Sugar Utilisations by Pediococcus pentosaceus in Fermentation of Madathawalu.  5th International Symposium on Engineering Advancements. PP 287-290
  12. Pathirana, K. P. S. R., Chaminda, K. G. S. C., Dilhani, R. A. D. I., Marapana, R. A. U. J., Jayasinghe, J. M. J. K and Nawaratna, S. B. (2015) Risk of crop residues and water that are contaminated with pesticides for feeding cattle’s in Nuwara Eliya DS division 12th International Conference on Business Management (ICBM)
  13. Sajini Athapathu, Marapana, R. A. U. J. and Thakshala Seresinhe (2014) Status of Milk Production and Economic Profile of Dairy farmers in Ratnapura District in the Intermediate zone of Sri Lanka. 16th AAAP Animal Science Congress, Indonesia. Vol II PP 300-303
  14. Chaminda, K. G. S., Marapana, R.A.U.J., Serasinhe, R.T., Karunagoda, R. P. and Marapana, R.A. J. U. (2012) Environmental impact and use of agrochemicals in cattle feed and its effect on milk in Magastota, Nuwara Eliya, Sri-Lanka. 1st national Symposium on “The potential Health and Environmental Impacts of Exposure to Hazardous Natural and Man-made Chemicals and their Proper Management” on 23rd November 2012, PP 27-30
  15. T. Seresinhe, W. M. C. B. Weerasinghe, R. A. U. J. Marapana, P. P S. K. Premathilaka and C. Iben (2010) Variation in milk yield and composition of Nili-Ravi cows and it’s relationship with supplementation Proc European Society of Veterinary and Comparative Nutrition, Zurich, Switzerland
  16. T. Seresinhe, Lochana Kumanayaka, R. A. U. J. Marapana, and C. Iben (2010) Performance of cross-bred heifers grazed natural pastures under coconut plantation in the wet intermediate zone of Sri-Lanka  Proc European Society of Veterinary and Comparative Nutrition, Zurich, Switzerland
  17. Marapana, R.A.U.J., Hewamange, D.S., Seresinhe, T. and  Senaratne, R. (2009) Study on behavioural changes of animals prior to a Tsunami natural disaster. Proceedings of the Rebuilding of Tsunami Affected Areas in the Southern and the Eastern Provinces of Sri Lanka. Pp 63-70
  18. R.A.U.J. Marapana & Thakshala Seresinhe (2007) Effect of feeding regime on growth, digestibility and excretion of purine derivatives in goats. Proceedings of the forth academic sessions, University of Ruhuna , Sri Lanka, Jan. 2007.

 

PUBLICATIONS IN ABSTRACT FORM

  1. A.K. Kaluarachchi, and R.A.U.J. Marapana (2025) Green Innovation in Palm Oil Extraction Through Low-Frequency Ultrasound Pretreatment. Fourth International Conference of the Centre for Environmental Sustainability (ICCES) 2025 University of Peradeniya, Sri Lanka September 12, 2025
  2. Dharmarathne, A.U. and  Marapana, R.A.U.J. (2025) Physicochemical Properties of Flour Obtained from Selected Traditional Corn Landraces in Sri Lanka. Proceedings of the 29th International Forestry and Environment Symposium 2025. 17th and 18th January 2025.
  3. Chamodi Gunathunga, Suraji Senanayake, Madhura Jayasinghe, Charles Stephan Brennan, Tuyen Truong, Upul Marapana & Jayani Chandrapala (2024) Optimizing bioactive compounds in rice, maize, green gram and soy through germination: Implication for developing bioactive compounds enriched malted milk powder. 74th Australasian Grain Science Conference, 20-22 August 2024, Collins Square Docklands, Melbourne, Victoria, Australia.
  4. Chamodi Gunathunga, Jayani Chandrapala, R. A. U. J. Marapana, Charles Stephan Brennan, Tuyen Truong, Suraji Senanayake & Madhura Jayasinghe (2024) Investigation of physicochemical, structural and nutritional properties of malted milk powders enriched with germinated cereals and pulses. 17th International Hydrocolloids Conference, 12-15 November 2024, Palmerston North, New Zealand.
  5. A.U. Dharmarathne and R.A.U.J. Marapana (2024) Comparative analysis of bioactive   compounds in flour and starch extracted from selected traditional corn landraces, a local corn variety, and a hybrid corn variety in Sri Lanka. 80th Annual session of Sri Lanka Association for the Advancement of Science, 8th – 13th December 2024
  6. M.D. Thisanjula, G.S.A. Senanayake, R.A.U.J. Marapana, and W.L.I. Wijesekara (2024) Development of black tea (Camellia sinensis) extract incorporated hard-boiled candy with polyols. 80th Annual session of Sri Lanka Association for the Advancement of Science, 8th – 13th December 2024
  7. S.N.I.W.M.R.Y. Ilankoon and R.A.U.J. Marapana (2024) A comparative analysis of phytochemical composition and antioxidant activity of methanolic extracts of defatted, organic and non-organic coconut flour. 80th Annual session of Sri Lanka Association for the Advancement of Science, 8th – 13th December 2024
  8. P.H. Kalana and R.A.U.J. Marapana (2024) Effect of different tapping mixtures on bioactive properties of ‘kithul’ treacle in Sinharaja forest area. 80th Annual session of Sri Lanka Association for the Advancement of Science, 8th – 13th December 2024
  9. C. A. Bamunuge and R. A. U. J. Marapana (2024) Determination of phytochemical and bioactive compounds of Kappettiya (Croton aromaticus) leaf extract. 80th Annual session of Sri Lanka Association for the Advancement of Science, 8th – 13th December 2024
  10. N. Ramaraj, G. Thiripuranathar , S. Ekanayake, K. Attanayake and R.A.U.J. Marapana Proximate composition of two brown marine algal species from the Northern coast of Sri Lanka: A comparative analysis. Proceedings of the 2nd International Conference on Frontiers in Chemical Technology,  20 – 22 June, 2024, Colombo, Sri Lanka
  11. B.K.H.H. Batuwita, J.M.J.K. Jayasinghe, R.A.U.J. Marapana and C.V.L. Jayasinghe Determination of the effect of frying temperature, time, added asparagine, glucose content and precursor content on the acrylamide formation in fish roll. International Symposium on Agriculture and Environment 2024, University of Ruhuna, Sri Lanka, 10th May 2024
  1. K.H.H. Batuwita, J.M.J.K. Jayasinghe, R. A. U. J. Marapana, C.V.L. Jayasinghe (2023) Effect of different frying practices on acrylamide formation, and oil properties in dhal vade and fish rolls. Proceedings of the Young Scientists’ Conference on Multidisciplinary Research – 2023 (YSCMR-2023) 09th November 2023
  2. B.K.B. Navodya, R.A.U.J. Marapana, and D.C. Abeysinghe (2023)  Development of a keto-diet support avocado muffin by incorporating avocado flour, pulp, and rice flour. 79th Annual sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  3. S.D. Epa Arachchi and R.A.U.J. Marapana (2023) Effect of in vitro digestion on antioxidant activity of selected breakfast food. 79th Annual sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  4. W.A.Y.A. Wickramaarachchi, G.S.A. Senanayake, and R.A.U.J. Marapana (2023) Evaluation of physicochemical characteristics of milk fat obtained from two locally reared pure European cattle breeds of Friesian and Ayrshire in Sri Lanka. 79th Annual sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  5. P.D. Asheena  and R.A.U.J. Marapana (2023) The effect of hot water, ultrasound-assisted, and microwave-assisted extractions on bioactive compounds of spent tea from mid-country, Sri Lanka 79th Annual sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  6. P D Asheena and R A U J Marapana (2023) Valorizing Spent Green Tea: Comparison of Hot Water Extraction, Ultra Sound Assisted Extraction and Microwave Assisted Extraction National Symposium on Tea 2023 7th December 23
  7. P. G. I. Dias, Marapana, R. A. U. J. and Rathnayaka, R. M. U. S. K. (2023) In vitro Antioxidant  and antidiabetic activities of selected herbal infusions. 4th National Symposium on Agro-Technology and Rural Sciences 28th June University of Colombo
  8. K.O.G.H. Ruwanthika, M.L.A.M.S. Munasinghe and R.A.U.J. Marapana (2022) Nutrient Analysis of Cultivars of Cucurbita SPP. (Pumpkin) Grown in Dry Zone of Sri Lanka. Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka: 28th-30th October 2022
  9. S. Shanuke, R. A. U. J. Marapana, S. Hettiarachchi, E. M. R. K. B. Edirisinghe (2022) Effect of plant extracts from Plectranthus amboinicus, Moringa oleifera and Ocimum sanctum Linn as a natural inhibitor on oxidation of fish oil Vol 39(1) Chemistry in Sri Lanka
  10. Maduwanthi, S.D.T. and R.A.U.J. Marapana Effect of Ethylene and Acetylene Treatments on Phenolics, Flavonoids and Antioxidant Activity of Ambul Banana (Musa acuminata, AAB) Peradeniya University International Research Sessions (iPURSE) (2021) 11th – 12th November 2021
  11. D.S. Shanuke , R.A.U.J. Marapana , S. Hettiarachchi and E.M.R.K.B. Edirisinghe (2021) Development of Omega-3 Fish Oil Fortified Functional Stirred Yoghurt by Incorporating Annona muricata (Soursop) 5 th International Research Conference of Uva Wellassa University, IRCUWU2021 1 st – 2 nd July 2021@ Uva Wellassa University
  12. Rusney, F. R. and Marapana, R.A.U.J. Fatty acid composition and physicochemical properties of oil extracted from head and vicera of Indian Mackerel (Rastrelliger kanagurta). 77th Annual session of Sri Lanka Association for the Advancement of Science (2021), 6th – 11th December 2021
  13. Gunathunga P.M.C.P., Marapana, R.A.U.J., and Rumesh L. Effect of Addition of glucose syrup on biochemical properties during the processing of Black Tea. 77th Annual session of Sri Lanka Association for the Advancement of Science (2021), 6th – 11th December 2021
  14. Sithara, T. A. H., Marapana, R. A. U. J., Liyanage, R. and Senanayaka, S. (2020) Analysis of polycyclic aromatic hydrocarbons in dried black tea. Proceedings of 7th Ruhuna Internaional Science & Technology Conference RISTCON January 22
  15. P. D. S. Senarathna and R. A. U. J. Marapana (2020) Comparative study on the properties of gelatin from the scales of Oreochromic niloticus extracted by ultrasound –assisted and water bath methods 76th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  16. Sithara, T. A. H., Marapana, R. A. U. J., Liyanage, R. and Senanayaka, S. (2019) Determination of polycyclic hydrocarbons in black tea at different processing steps. 4th International Research Symposium on Pure and Applied Sciences (IRSPAS 2019), 25th October 2019
  17. Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2019) Effect of ethephon and acetylene treatments on chlorophylls and carotenoids pigments in banana (Musa acuminate AAB). 4th International Research Symposium on Pure and Applied Sciences (IRSPAS 2019), 25th October 2019
  18. Ranasinghe, R. A. S. N. and Marapana, R. A. U. J. (2019) Changes in organic acid and sugar contents of jackfruit (Artocarpus heterophyllus Lam) flesh with maturity. 1st International Conference on Agriculture, Food Security & Safety (AgroFood 2019), 7-8th November 2019
  19. Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2019) Comparative effects of ethephon and acetylene induced ripening on physicochemical parameters of Banana (Musa acuminate AAB) 1st International Conference on Agriculture, Food Security & Safety (AgroFood 2019), 7-8th November 2019
  20. Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2019) Aroma volatile production during natural ripening of ambul banana (Musa acuminate, AAB). International Symposium on Agriculture and Environment (ISAE), 28th February 2019
  21. Sanjeewani, R. D. J. Marapana, R. A. U. J. and Cooray, A. (2019) Characterization of effluent water from dairy and meat processing industry in Sri Lanka. International Research Conference (IRCUWU) 7-9 February 2019
  22. Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2019) Aroma volatiles of ambul banana (Musa acuminate, AAB) as affected by artificial ripening agents. International Research Conference (IRCUWU) 7-9 February 2019
  23. Chandrajith, V. G. G. and Marapana, R. A. U. J. (2018) Evaluation of antioxidant properties and total phenol content of bark exudates of Lannea coromandelica & Mangifera indica and its application as a functional fruit coating. 2nd International Research Symposium (IRSUWU 2018), 1-2 February 2018
  24. Ranasinghe, R. A. S. N. and Marapana, R. A. U. J. (2018) Effect of stage of maturity on physicochemical properties of jackfruit (Artocarpus heterophyllus Lam.) flesh. 2nd International Research Symposium (IRSUWU 2018), 1-2 February 2018
  25. Maduwanthi, S. D. T. and Marapana, R. A. U. J. (2018) Effect of induced ripening agents on physicochemical properties of Ambul banana (Musa acuminate, AAB). 2nd International Research Symposium (IRSUWU 2018), 1-2 February 2018
  26. Rukunayaka, S. D. and Marapana, R. A. U. J. (2017) Evaluation of the potential antioxidant properties of three varieties of sea weed collected from Sri Lankan coastal areas. International Symposium on Traditional and Complementary Medicine, 23-25th November 2017
  27. Kodagoda, K. H. G. K. and Marapana R. A. U. J. (2017) Analysis of proximate composition and physicochemical properties of pineapple wastes. 73rd Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  28. Amarasinghe, A. E. and Marapana R. A. U. J. (2017) Encapsulation of ß-carotene fortified virgin coconut oil to form soft gel capsules. 73rd Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  29. De Silva, G. O. and Marapana R. A. U. J. (2017) Identiifcation of main chemical compound responsible for the bitterness in pasteurized juice of bibila sweet oranges. 73rd Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  30. Perera, P. M. P. A. S., Munasinghe, D. H. H. and Marapana, R. A. U. J. (2017)
    Analysis of microbiological quality of powdered milk and pasteurized milk in Colombo
    and Gampaha Districts – A case study. Fourth International Conference on
    Multidisciplinary Approaches, 20-22 September 2017
  31. Pathirana, K. P. S. R., Ranasinghe, R. A. D. I., Chaminda, K. G. S., Marapana, R. A. U. J., Jayasinghe, J. M. J. K. and Navaratna, S. B. (2017) Quantification of organophosphorus pesticides residues cow’s milk collected from Nuwara Eliya District. Fourth International Conference on Multidisciplinary Approaches, 20-22 September 2017
  32. Aponso, M. M. W., Marapana, R. A. U. J. and. Manawaduge, R. (2017) Optimization of pectinase enzyme assisted Jaffna grown Israel Blue (Vitis vinifera L.) grape juice clarification process. ISER International Conference, Melbourne, Australia, 5th-6th April 2017
  33. Perera, P. M. P. A. S., Munasinghe, D. H. H. and Marapana, R. A. U. J. (2017)
    Analysis of selected nutritional parameters of powdered milk and pasteurized milk in the Sri Lankan market. Proc. Post Graduate Institute of Science Research Congress
  34. Madurangi, A. D. R. and Marapana, R. A. U. J. (2016) Prevention of colour degradation of pickled carrots by hot water blanching and acidification. 3rd Global Conferences on Entomology
  35. Uthpala, T. G. G., Marapana, R. A. U. J., Pathirage, A. C. and Jayawardana, S. A. S. (2016) Effect of the nutritional composition on textural quality of two gherkin (Cucumis sativus L.) varieties (Ajax & Vlasset) on brine fermentation. 72nd Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  36. Madurangi, A. D. R. and Marapana, R. A. U. J. (2016) Effect of blanching & acidification as a pretreatment to minimize surface white discolouration of sliced carrots in pickles. 72nd Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  37. Marapana, R. A. U. J. and D. M. K. N. Rathnayake (2016) The effect of emulsifiers on stability of an ice cream and identify the best emulsifier & stabilizer blend. 72nd Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  38. Fernando. I. M., Marapana, R. A. U. J. and Amunugoda, P. N. R. J. (2016) Efficacy of microfiltration versus conventional thermal processing in the production of a ready to serve health beverage. 2nd Symposium, Faculty of Applied Sciences, University of Sri Jayewardenepura.
  39. Rathnayake, D. M. K. N., Marapana, R. A. U. J., Attanayake, M. R. P. and Dasanayake, I. (2016) The effect of emulsifiers on stability of an ice cream and identify the best emulsifier & stabilizer blend. 2nd Symposium, Faculty of Applied Sciences, University of Sri Jayewardenepura.
  40. Pathirana, K. P. S. R., Chaminda, K. G. S. C., Dilhani, R. A. D. I., Marapana, R. A. U. J., Jayasinghe, J. M. J. K and Nawaratna, S. B. (2015) Risk of crop residues and water that are contaminated with pesticides for feeding cattle’s in Nuwara Eliya DS division 12th International Conference on Business Management (ICBM)
  41. Dilhani, R. A. D. I., Chaminda, K. G. S. C., Pathirana, K. P. S. R., Marapana, R. A. U. J., Jayasinghe, J. M. J. K and Nawaratna, S. B. (2015) Assessment of pesticide usage for vegetable cultivation in Nuwara Eliya District The International Research Conference on Humanities and Social Sciences
  42. Chaminda, K. G. S. C., Dilhani, R. A. D. I., Pathirana, K. P. S. R., Marapana, R. A. U. J., Jayasinghe, J. M. J. K and Nawaratna, S. B. (2015) Identification of potential risk of zinc contamination in tomatoes through fungicide application in Hanguranketha Sri Lanka 71st Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  43. Perera, W. J. S., Marapana R. A. U. J. and Silva, U. De. (2014) Use of stevia as a non-caloric natural sweetner in omega-3 enriched cow and buffalo milk yoghurt. 70th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  44. Mahanama, R. P. S. S. and Marapana R. A. U. J. (2014) Development of bitter gourd based value added low-fat bread spread. 70th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  45. Perera, K. D. D., Marapana R. A. U. J. and Jayasinghe J. M. J. K. (2013) Improvement of gustatory sensation of stirred type herbal yoghurt by incorporating slow cooked aloe vera (Aloe barbadensis) gel cubes. 69th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  46. Shanika K. D. S. and Marapana R. A. U. J. (2013) Development of an omega-3 fatty acids fortified ice cream by using ground flax seeds and microencapsulated fish oil. 69th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  47. De Silva, K. A. R., Manawadu, A., Marapana, R. A. U. J., Seresinnnghe R. T. and Kalubowila A. (2013) Development of mechanically separated meat (MSM) mixture by using wastes of export tuna fish. 69th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  48. Chaminda, K. G. S., Marapana R. A. U. J. and Seresinghe R. T. (2013) Awareness and adaptation of farmers to golden rules of pesticide usage in Magastota, Nuwara Eliya, Sri Lanka. 69th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  49. Perera M. Y. R. and Marapana R. A. U. J. (2013) Assessment of physiochemical characteristics and microbial quality of bottled drinking water in Kalutara District. 69th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  50. Kumara, H. R. M. A. K., Marapana, R. A. U. J., Nirupa Edirisinghe, Manawadu A. and Seresinghe R. T. (2013) Use of textured vegetable protein as a replacement of meat portion in sausage making. 69th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  51. Chaminda, K. G. S., Marapana, R.A.U.J., Serasinhe, R.T. and Karunagoda, R. P. (2011) Analysis of selected agrochemical residues in raw bovine milk in Magastota, Nuwara Eliya, Sri-Lanka. International Symposium on Agriculture and Environment, University of Ruhuna
  52. Kaluarachchi, C. G., Marapana, R.A.U.J., Serasinhe, R.T. and Saman, G. Y. G. (2011) Development of low fat cheese analogue by substituting milk fat with vegetable fat. International Symposium on Agriculture and Environment, University of Ruhuna
  53. Peiris, P.I., Marapana, R.A.U.J. and Seresinhe, R.T. (2011) Use of Cyclea burmanii (Kahipittan) leaves for the production of herbal yoghurt. 67th Annual Sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  54. Weerasinghe, W. M. C. B., Marapana, R. A. U. J., Seresinghe, R. T. and Premathilaka, P. P. S. K. (2010) Effect of stage of growth of Guinea A (Panicum maximum, eco type A) grass with low cost supplements on the performance of Nili-Ravi buffalo calves. 1st International Symposium University of Ruhuna
  55. Weerasinghe, W. M. C. B., Marapana, R. A. U. J. and Seresinghe, R. T. (2010) Development of a field based method to predict body weight of cross-bred buffaloes in small farms. 1st International Symposium University of Ruhuna

     

  56. Gajaweera, C. J., Marapana, R. A. U. J. and Seresinghe, R. T. (2010) Revitalization of small scale cattle management systems in Southern province. 1st International Symposium University of Ruhuna
  57. Herath, H. M. S. S. K., Mangalika, U. L. P., Marapana, R. A. U. J. and Seresinhe, R. T. (2010) Nutritional status of lactating dairy cows under small holder dairy farming systems in Polgahawela veterinary range. 1st International Symposium University of Ruhuna
  58. Thaksala Seresinhe, Liyanage, M. De. S. and Marapana R.A.U.J. (2009) Role of cattle and local feed resources on the sustainability of a coconut cattle integrated system. Proceedings of the International symposium on Sustainable improvement of Animal Production and Health (IAEA-CN-174-7). June 8-11, International Atomic Energy Agency, Vienna, Austria pp 49-50
  59. Piyadigama, B., Seresinhe, R.T., Soliva, C.R., Kreuzer, M and Marapana, R.A.U.J. (2009) An overview of goat farming in the Hambantota district of Sri Lanka, With special reference to health aspects. Proceedings of the International symposium on Sustainable improvement of Animal Production and Health (IAEA-CN-174-113). June 8-11, International Atomic Energy Agency, Vienna, Austria pp 344-345
  60. De silva, P. H. G. J., Marapana, R. A. U. J., Kalubowila, A. and Lalantha, N. (2009) Development of a veggie burger as beef meat analogue and its quality characters. 2nd National symposium University of Ruhuna
  61. Kumari, R. G. D., Marapana, R. A. U. J., Narayana, N. M. N. K. and Jayarathna, N. P. K. (2009) A healthy and nutritious jelly from sweet cheese whey. 2nd National symposium University of Ruhuna
  62. Weerasinghe, W. M. C. B., Marapana, R. A. U. J., Seresinhe, R. T. and Premathilaka, P. P. S. K. (2009) The effect of feeding regime on the performance of Nili Ravi buffalo cows and calves. 2nd National symposium University of Ruhuna
  63. Nayanarasi, H.A.D., Marapana, R.A.U.J. and Kalubowila, A. (2008) Effect of casing types and diameter on quality of skin on chicken sausages. 64th Annual Sessions – Proc. Sri Lanka Assoc. Avmt. Sci.,
  64. Kumanayaka, L., Seresinhe, T. and Marapana, R.A.U.J. (2008).Effect of grazing on botanical composition and stratification of natural herbage in a coconut land. 64th Annual Sessions – Proc. Sri Lanka Assoc. Avmt. Sci.,
  65. Kumanayaka, L., Piyadigama, B., Thakshala Seresinhe , Marapana, R.A.U.J. and Liyanage, M.de S (2008) . Effect of supplementation on the utilization of natural herbage by grazing heifers in a coconut land. Proc. of Technical sessions, SLJAP 4 (1) 101-102
  66. Ariyasena, H.D.H.M., Marapana, R.A.U.J. and Lasath Rathnayake (2008) Validation of Critical Control Points in HACCP system for broiler processing. 64th Annual sessions- Proc. Sri Lanka Assoc. Avmt. Sci.,
  67. Piyadigama, B., Seresinhe, R.T., Carla Riccarda Soliva, Michael Kruezer, Marapana, R. A. U. J. and Perera, W. A. R. P. (2008) Farmers’ perception in employing diverse feeding practices for goats in Hambantota area. 1st National symposium University of Ruhuna
  68. Amarasekara, R. P., Atapattu, N.S.B.M. and Marapana, R.A.U.J. (2008) Evaluation of meat quality of broiler chicks fed diets with or without fishmeal from 21-42 days. 1st National Symposium University of Ruhuna
  69. Sirisena, N.D.C., Baduwasam, P.A.B.B., Marapana, R.A.U.J. and Seresinhe, T. (2006) Environmental impacts on waste and water dispose from abattoirs and poultry processing units in Weligama area. Presented at the 11th International Forestry & Environment Symposium, 2nd December 2006.
  70. Marapana, R.A.U.J. and Seresinhe, R.T. (2006) Utilization of oil palm waste as a low cost feed ingredient for growing pigs to reduce the environmental pollution. Presented at the 11th International Forestry & Environment Symposium, 2nd December 2006.
  71. Marapana, R.A.U.J. and Bamunuarachchi, A. (2003)“ Percentage Yield of parts and growth characteristics of pigs under intensive feeding” Proc. of the 4th research sessions, Faculty of Graduate Studies, USJ
  72. Marapana,R.A.U.J., Weerasinghe,H.M.B.P., Seresinhe,R.T.and Hettiarachchi, N. (2002) Growth performance and carcass characteristics of fatteners feeding with three different alternatives rations. 58th Annual Sessions Proc. Sri Lanka Assoc. Avmt. Sci.,
  73. Marapana, R.A.U.J. Weerasinghe, H.M.B.P. Seresinhe, R.T.and Kalubowila, C.A.. (2002) Yield of pig offal’s and their nutritive value after the rendering process. 58th Annual Sessions Proc. Sri Lanka Assoc. Avmt. Sci
  74. Perera, P.W.A., Marapana, R.A.U.J., Prasath, K.A.T. and Gunawardena, A. (2001) “ Present Status of small scale Goat Farming in Badulla District” 57th Annual Sessions-Proc. Sri Lanka Assoc. Avmt. Sci.,
  75. Marapana, R.A.U.J., Perera, P.W.A., Herath, H.M.J.K. and Gunawardane, A. (2000) Body Measurement’s and It’s relation to Carcass Weights of goats. 56th Annual Sessions-Proc. Sri Lanka Assoc. Avmt. Sci.,
  76. Rubasinghe, S.K.N., Marapana, U. and Dematawewa, C. M. B. (1999) “Effect of storage temperature on eating and keeping quality of commercially prepared pork, beef and chicken ham” Proc. Dept. of Animal Science, Faculty of Agriculture, University of Peradeniya
   
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