Journal ArticleDOI
Genistein, daidzein, and their .beta.-glycoside conjugates: antitumor isoflavones in soybean foods from American and Asian diets
TLDR
In this article, a method was described for the separation and analysis of isoflavone β-glycoside conjugates and aglucones in various foods derived from soybeans.Abstract:
A method is described for the separation and analysis of isoflavone β-glycoside conjugates and aglucones in various foods derived from soybeans. After initial extraction using 80% aqueous methanol and defatting of the extract with hexane, the isoflavones were analyzed by gradient elution reversed-phase high-pressure liquid chromatography. Their structures were confirmed by fast atom bombardment ionization mass spectrometry and by proton nuclear magnetic resonance spectroscopy. The results reveal that most Asian and American soy products, with the exception of soy sauce, alcohol-extracted soy protein concentrate, and soy protein isolate, have total isoflavone concentrations similar to those in the indict soybeanread more
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Polyphenols: food sources and bioavailability
TL;DR: The nature and contents of the various polyphenols present in food sources and the influence of agricultural practices and industrial processes are reviewed, and bioavailability appears to differ greatly between the variousPolyphenols, and the most abundantpolyphenols in the authors' diet are not necessarily those that have the best bioavailability profile.
Journal ArticleDOI
Flavonoids: an overview
TL;DR: Current trends of research and development activities on flavonoid relate to isolation, identification, characterisation and functions of flavonoids and finally their applications on health benefits and future research directions are discussed.
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Dietary phenolics: chemistry, bioavailability and effects on health.
TL;DR: This review summarizes the chemistry, biosynthesis and occurrence of the compounds involved, namely the C6-C3-C6 flavonoids-anthocyanins, dihydrochalcones, Flavan-3-ols, flavanones, flavones, Flavonols and isoflavones, and the mechanisms underlying these processes are discussed.
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Extraction and analysis of phenolics in food
Marian Naczk,Fereidoon Shahidi +1 more
TL;DR: This paper provides a summary of background information and methodologies used for the analysis of phenolics in foods and nutraceuticals.
Journal ArticleDOI
Soy intake and cancer risk: A review of the in vitro and in vivo data
TL;DR: There is sufficient evidence of a protective effect to warrant continued investigation of the role of soyfoods in cancer prevention, and in vitro, animal, and epidemiological data are examined.