کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1191343 | 963556 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new vinylpyranoanthocyanin pigment occurring in aged red wine
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
A new pyranoanthocyanin–vinylphenol pigment was detected in an aged Port red wine. The UV–Vis spectrum of this pigment was found to have a λmax of 538 nm that is bathochromically shifted from that of original anthocyanins, exhibiting a more purple hue in acidic solution. This newly formed pigment was synthesized in model solution through the reaction between malvidin 3-O-glucoside–pyruvic acid adduct and vinylphenol and its structure was assigned by NMR and mass spectrometry. This pigment is reported herein for the first time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 97, Issue 4, August 2006, Pages 689–695
Journal: Food Chemistry - Volume 97, Issue 4, August 2006, Pages 689–695
نویسندگان
Nuno Mateus, Joana Oliveira, João Pissarra, Ana M. González-Paramás, Julian C. Rivas-Gonzalo, Celestino Santos-Buelga, Artur M.S. Silva, Victor de Freitas,