Journal
JOURNAL OF CHEMICAL SCIENCES
Volume 133, Issue 1, Pages -Publisher
INDIAN ACAD SCIENCES
DOI: 10.1007/s12039-020-01869-z
Keywords
Medium-chain triglyceride; caprylic acid; tricaprylin; microwave; esterification; neutraceutical
Categories
Funding
- Department of Science and Technology, Government of India
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In this study, tricaprylin was efficiently synthesized with a conversion rate of 99.5% in a short time using microwave and dry acidic Amberlyst-15 catalyst. The microwave synthesis proved to be more effective compared to traditional synthesis methods for medium-chain triglycerides.
Tricaprylin is a triglyceride of caprylic acid. Tricaprylin is a medium-chain triglyceride. Medium-chain triglycerides are considered as a nutraceutical and have a wide range of application in health foods and nutraceutical industry. In the present study, the synthesis of tricaprylin is investigated using environment-friendly approach i.e., with the application of microwave and heterogeneous catalyst dry acidic Amberlyst-15. The result of various reaction conditions like the molar ratio of reactant, reaction temperature, and catalyst amberlyst loading on the conversion of caprylic acid into tricaprylin is studied. The microwave synthesis is compared with traditional or normal synthesis of tricaprylin. In the present study, it is found that microwave synthesis resulted in a high degree of conversion in less time as compared to conventional synthesis. Conversion of 99.5% is observed in 16 min of reaction between medium-chain fatty acid (C8) and glycerol under optimized reaction parameters of the molar ratio of caprylic acid:glycerol as 3:5 with reaction temperature 800 degrees C and catalyst loading of 4% (by weight of fatty acid). Graphic abstract Intensified synthesis of medium-chain triglycerides.
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