کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7597797 1492132 2014 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Antioxidant activity of gallic acid and methyl gallate in triacylglycerols of Kilka fish oil and its oil-in-water emulsion
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Antioxidant activity of gallic acid and methyl gallate in triacylglycerols of Kilka fish oil and its oil-in-water emulsion
چکیده انگلیسی
The anti-DPPH radical effect as well as anti-peroxide activity of gallic acid, methyl gallate, and α-tocopherol in a bulk Kilka fish oil and its oil-in-water emulsion stabilized by soy protein isolate at 55 °C were investigated. Gallic acid with the lowest hydrophobicity (log P = −0.28) was found to be the most active antiradical agent (IC50 = 29.5 μM), followed by methyl gallate (IC50 = 38.0 μM, log P = −0.23) and α-tocopherol (IC50 = 105.3 μM, log P = 0.70). The anti-peroxide activity in the bulk oil system decreased in the order of methyl gallate > gallic acid > α-tocopherol. In the emulsion system, methyl gallate still behaved better than gallic acid, but the highest activity belonged to α-tocopherol. Based on the calculation of a number of kinetic parameters, the antioxidants, in general, showed better performances in the bulk oil system than in the emulsion system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 159, 15 September 2014, Pages 439-444
نویسندگان
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