کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7592215 1492113 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Grape seed and apple tannins: Emulsifying and antioxidant properties
ترجمه فارسی عنوان
دانه انگور و تانن سیب: خواص امولسیون و آنتی اکسیدان
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Tannins are natural antioxidants found in plant-based foods and beverages, whose amphiphilic nature could be useful to both stabilize emulsions and protect unsaturated lipids from oxidation. In this paper, the use of tannins as antioxidant emulsifiers was studied. The main parameters influencing the stability of emulsions (i.e. tannins structure and concentration, aqueous phase pH, and ionic strength) were identified and optimized. Oil in water emulsions stabilized with tannins were compared with those stabilized with two commercial emulsifying agents, poly(vinyl alcohol) (PVA) and polyoxyethylene hydrogenated castor oil. In optimized conditions, the condensed tannins allowed to obtain a stability equivalent to that of PVA. Tannins presented good antioxidant activity in oil in water emulsion, as measured by the conjugated autoxidizable triene (CAT) assay.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 178, 1 July 2015, Pages 38-44
نویسندگان
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