کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4516080 1322343 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Metabolite profiling of colored rice (Oryza sativa L.) grains
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Metabolite profiling of colored rice (Oryza sativa L.) grains
چکیده انگلیسی

HPLC analysis of dehulled red, black and non-colored indica and japonica rice subspecies revealed significant differences in the contents of the anthocyanins cyanidin-3-glucoside and peonidin-3-glucoside. The rice materials were subjected to a comparative capillary gas chromatography-based metabolite profiling approach. The employed extraction and fractionation protocol enables the analysis of a broad spectrum of lipophilic and hydrophilic low molecular weight constituents from different chemical classes. The method covers not only primary metabolites (e.g. sugars, fatty acids) but also nutritionally relevant constituents (e.g. α-tocopherol, γ-aminobutyric acid). Statistical assessment of the data via principal component analysis and agglomerative hierarchical clustering revealed a distinct grouping of the different colored rice subspecies on the basis of their metabolite profiles. Compared to non-colored and red rice, black rice exhibited, in particular, higher levels of fatty acid methyl esters, free fatty acids, organic acids and amino acids.


► First application of a metabolite profiling approach to the differentiation of white and colored rice grains.
► Analysis of a broad spectrum of lipophilic and hydrophilic low molecular weight metabolites.
► Coverage of primary as well as nutritionally relevant metabolites (e.g. α-tocopherol, γ-aminobutyric acid).
► Statistical assessment of the data revealed a clear grouping of the different colored rice subspecies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cereal Science - Volume 55, Issue 2, March 2012, Pages 112–119
نویسندگان
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