کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7585131 1492034 2018 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterizations of the endogenous starch hydrolase inhibitors in acorns of Quercus fabri Hance
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Characterizations of the endogenous starch hydrolase inhibitors in acorns of Quercus fabri Hance
چکیده انگلیسی
The acorns of Quercus fabri Hance tree, or the mandarin duck fruits have been consumed by locals in the form of noodle, yet there is little scientific study. We found that they have much lower digestibility compared with that of rice flour. Solvent extraction using hexane, dichloromethane, and acetone-ethanol-water (AEW) mixture yielded three fractions but the starch hydrolase inhibitors were only found in the AEW fraction. Using assay-guided fractionation of the extracts, we were able to further separate the active compounds by using Sephadex LH-20 column and characterize the inhibitor chemical identities by LC-MS(n). The main active compounds are ellagitannins including pedunculagin, punicalagin, castalagin, and eucalbanin. Our results indicate that the acorns from Quercus fabri Hance have potential for preparation of low glycemic index foods due to the endogenous starch hydrolase inhibitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 258, 30 August 2018, Pages 111-117
نویسندگان
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