Browsing by Author "Weliwegamage,U.S.K"
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Item Determination of antioxidant activity, phenolic content and pH in wine prepared from local beet(Institute of Chemistry Ceylon, 2019-05) Gunasekara,S.R; Udawatte,C.S; Weliwegamage,U.S.KBeetroot (Beta Vulgaris) is a vegetable containing high amounts of biologically active compounds such as antioxidants, and polyphenols. It also contains vitamin C, fiber, inorganic nitrogen and anthocyanin, which have various health benefits. In this study, wine was prepared by fermenting beet, and the antioxidant activity, pH and total phenolic content of the wine was determined.Item Study of photocatalytic degradation of some selected Dyes and other organic contaminants in water(Institute of Chemistry Ceylon, 2024-06) Weliwegamage,U.S.K; Fernando,S.S.A; Perera,G.W.C.S; Kamalapriya,B.D.HThe present study explores the effects of various parameters such as radiation type, pH of the solution, type of photocatalyst, particle size, initial concentration of dyes and pesticide precursors, amount of H2 O2 concentration, reaction temperature, and photocatalyst load on photocatalysis of each compound. TiO2 nanoparticles, TiO2 microparticles, and MnO2 microparticles were used to compare the efficiency of the photocatalysts.Item The effect of the metal ion composition on the decarboxylation percentage of metal basic soap and level of unsaturation in producing green diesel(Institute of Chemistry Ceylon, 2024-06) Weliwegamage,U.S.K; Jayasinghe,M.K.S; Perera,G.W.C.SThe growing demand for fossil fuels has led to their depletion, causing higher fuel prices and threatening the sustainability of industrialized countries.