کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1185729 963412 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of polyphenols content and antioxidant activity of some red wines by differential pulse voltammetry, HPLC and spectrophotometric methods
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Determination of polyphenols content and antioxidant activity of some red wines by differential pulse voltammetry, HPLC and spectrophotometric methods
چکیده انگلیسی

Red wines produced in three different wine growing regions of Croatia were analysed for total polyphenols (TP) content, concentration of individual polyphenols and antioxidant activity (AA). TP content was measured by differential pulse voltammetry (DPV), Folin–Ciocalteu (FC) and HPLC methods. Individual polyphenols were measured by HPLC and AA was determined by ABTS and DPPH methods. The results showed that DPV is a very sensitive method for the determination of TP. A very high correlation was obtained between the TP content determined by DPV, FC and HPLC. The major polyphenols in the wines were gallic acid and (+)-catechin. TP, individual polyphenols and AA varied among wines from different regions. Wines from the Dalmatia region had the highest TP content, the highest concentration of important antioxidants and significantly higher AA. There was a very high correlation between AA and TP in all of the wines tested.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 124, Issue 3, 1 February 2011, Pages 1208–1216
نویسندگان
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