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  • Composition and stability of phytochemicals in five varieties of black soybeans (Glycine max).

    Author(s) : Correa, C. R.Li, L.Aldini, G.Carini, M.Chen, C. Y. O.Chun HyeKyungCho SooMukPark KiMoonRussell, R. M.Blumberg, J. B.Yeum, K. J.

    Author Affiliation : Jean Mayer USDA Human Research Center on Ageing at Tufts University, Tufts University, Boston, MA 02111, USA.

    Author Email : kyungjin.yeum@Tufts.edu

    Journal article : Food Chemistry 2010 Vol.123 No.4 pp.1176-1184 ref.28

    Abstract : Phytochemical compositions of five varieties of black soybeanssoybeansSubject Category: Commodities and Products
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    soybeansSubject Category: Commodities and Products
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    (Glycine maxglycine maxSubject Category: Organism Names
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    ) and their stabilities at room temperature, 4 and -80°C over 14 months were determined by HPLC systems with electrochemical (ECD) and UV detectors. Polyphenol profiling was carried out by a liquid chromatography-electrospray ionisation-mass spectrometry (LC-ESI-MS) with orbitrap as a mass analyser in both positive and negative ion modes, and polyphenolspolyphenolsSubject Category: Chemicals and Chemical Groups
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    in aglycone forms were quantified by HPLC-ECD. Five different varieties of black soybeans (G. max) contained 249-405 µg/g dry wt of γ-tocopherol and 6.76-14.98 µg/g dry wt of lutein. Major polyphenols in black soybeans (G. max) were daidzeindaidzeinSubject Category: Chemicals and Chemical Groups
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    (193-288 µg/g dry wt) and genisteingenisteinSubject Category: Chemicals and Chemical Groups
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    (145-223 µg/g dry wt), mainly present as glucosidesglucosidesSubject Category: Chemicals and Chemical Groups
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    and acetyl glucosides. No significant decrease was found in total phenolsphenolsSubject Category: Chemicals and Chemical Groups
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    of black soybeans (G. max) stored at room temperature, 4 or -80°C for 14 months. On the other hand, lutein and γ-tocopherol degraded significantly within a month of storagestorageSubject Category: Miscellaneous
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    at room temperature (p<0.01), whereas they remained stable up to 6 months at 4°C and up to 14 months at -80°C. The current study indicates that black soybeans (G. max) are rich source of γ-tocopherol and phenols (isoflavonesisoflavonesSubject Category: Chemicals and Chemical Groups
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    , flavonolsflavonolsSubject Category: Chemicals and Chemical Groups
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    , flavan-3-ols, proanthocyanidins and anthocyanin) and that the levels vary depending upon varieties. In addition, storage at low temperature is recommended to reduce the loss of fat-soluble phytochemicalsphytochemicalsSubject Category: Commodities and Products
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    phytochemicalsSubject Category: Chemicals and Chemical Groups
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    in black soybeans (G. max) over an extended period of time.

    ISSN : 0308-8146

    DOI : 10.1016/j.foodchem.2010.05.083

    Record Number : 20103262549

    Publisher : Elsevier Ltd

    Location of publication : Oxford

    Country of publication : UK

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Glycine (Fabaceae)glycine (fabaceae)Subject Category: Organism Names
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    , Glycine maxglycine maxSubject Category: Organism Names
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    Descriptor(s) : anthocyanidinsanthocyanidinsSubject Category: Chemicals and Chemical Groups
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    , biochanin Abiochanin aSubject Category: Chemicals and Chemical Groups
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    , chemical compositionchemical compositionSubject Category: Properties
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    , cultivarscultivarsSubject Category: Organism Groups
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    , daidzeindaidzeinSubject Category: Chemicals and Chemical Groups
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    , flavansflavansSubject Category: Chemicals and Chemical Groups
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    , flavonolsflavonolsSubject Category: Chemicals and Chemical Groups
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    , genisteingenisteinSubject Category: Chemicals and Chemical Groups
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    , glucosidesglucosidesSubject Category: Chemicals and Chemical Groups
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    , isoflavonesisoflavonesSubject Category: Chemicals and Chemical Groups
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    , phenolsphenolsSubject Category: Chemicals and Chemical Groups
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    , phytochemicalsphytochemicalsSubject Category: Chemicals and Chemical Groups
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    , plant compositionplant compositionSubject Category: Properties
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    , polyphenolspolyphenolsSubject Category: Chemicals and Chemical Groups
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    , soyabeanssoyabeansSubject Category: Commodities and Products
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    , storagestorageSubject Category: Miscellaneous
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    , tocopherolstocopherolsSubject Category: Chemicals and Chemical Groups
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    , xanthophyllxanthophyllSubject Category: Chemicals and Chemical Groups
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    Identifier(s) : chemical constituents of plants, cultivated varieties, lutein, soybeanssoybeansSubject Category: Commodities and Products
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    Broader term(s) : PapilionoideaepapilionoideaeSubject Category: Organism Names
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    , FabaceaefabaceaeSubject Category: Organism Names
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    , FabalesfabalesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , Glycine (Fabaceae)glycine (fabaceae)Subject Category: Organism Names
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