کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1185152 | 963385 | 2010 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Acetogenins from Annona cornifolia and their antioxidant capacity
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Acetogenins from Annona cornifolia and their antioxidant capacity Acetogenins from Annona cornifolia and their antioxidant capacity](/preview/png/1185152.png)
چکیده انگلیسی
Seed ethanol extract, fractions and acetogenins from Annona cornifolia A. St.-Hil were tested for their antioxidant activities against DPPH. Acetogenins showed a strong DPPH radical-scavenging activity, similar to that of ascorbic acid. Ten acetogenins were isolated in their pure form and two were isolated as a mixture. Five are new acetogenins and are described here for the first time. Their structures were elucidated by NMR and ESI-MS analysis, and relative configurations bearing THF rings were established. The absolute configuration at C-36 of two acetogenins was defined by circular dichroism. This is, to the best of our knowledge, the first description of the antioxidant activity of acetogenins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 122, Issue 4, 15 October 2010, Pages 1129–1138
Journal: Food Chemistry - Volume 122, Issue 4, 15 October 2010, Pages 1129–1138
نویسندگان
Luciana A.R. Santos Lima, Lúcia P.S. Pimenta, Maria Amélia D. Boaventura,