کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2507240 1402936 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bioactive compounds and antioxidative activity of colored rice bran
ترجمه فارسی عنوان
ترکیبات بیولوژیکی و فعالیت آنتی اکسیداتیو سبوس برنج رنگی
کلمات کلیدی
فعالیت آنتی اکسیدانی سبوس، برنج رنگی پروتکتاتوفالدئید
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
چکیده انگلیسی

The profiles of bioactive compounds (including phenolics and flavonoids in free and bound fractions, anthocyanins, proanthocyanidins, vitamin E, and γ-oryzanol) of outer and inner rice bran from six colored rice samples collected from local markets were investigated. Proanthocyanidins could only be detected in red rice bran but not in black rice bran. The free fraction of the extracts dominated the total phenolics (72–92%) and the total flavonoids (72–96%) of colored rice bran. Most of the phenolic acids (83–97%) in colored rice bran were present in the bound form. Protocatechualdehyde was identified for the first time in the bound fraction of red rice bran by high performance liquid chromatography-photodiode array/electrospray ionization tandem mass spectrometry. The antioxidative activities of the free fraction of the colored rice bran were attributed to the proanthocyanidins in red colored rice and anthocyanins in black rice, while that of the bound fraction was mainly due to the phenolic acids.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food and Drug Analysis - Volume 24, Issue 3, July 2016, Pages 564–574
نویسندگان
, ,