کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7585725 | 1492042 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and concentration of 2-monoacylglycerols rich in polyunsaturated fatty acids
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Polyunsaturated fatty acids (PUFA) in 2-monoacylglycerols form exhibit various biological activities and have potential applications in food and pharmaceuticals. Preparation of 2-monoacylglycerols was conducted by enzymatic enthanolysis. The effects of lipase type, substrate weight ratio, reaction time and lipase load on the 2-monoacylglycerols content in the crude product were investigated. Lipozyme 435 behaved as 1,3-specific and high-catalytic-activity lipase in this reaction. Under the optimal conditions (ethanol:oilâ¯=â¯3:1 (w/w), 8% Lipozyme 435, 3â¯h), 27% 2-monoacylglycerols were obtained. After solvent extraction of 2-monoacylglycerols, the abilities of low temperature crystallization and molecular distillation to concentrate 2-PUFA-monoacylglycerols were compared. Low temperature crystallization concentrated 81.13% and 74.29% PUFA by acetonitrile and hexane, respectively, with over 90% in 2-monoacylglycerol forms. Conversely, molecular distillation yielded a PUFA concentration of 72% but decreased the 2-monoacylglycerols content to 69.81%. Thus, the method including enzymatic ethanolysis and low temperature crystallization is suitable for preparation of 2-monoacylglycerols rich in PUFA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 250, 1 June 2018, Pages 60-66
Journal: Food Chemistry - Volume 250, 1 June 2018, Pages 60-66
نویسندگان
Yu Zhang, Xiaosan Wang, Dan Xie, Shuo Zou, Qingzhe Jin, Xingguo Wang,