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Distribution of Flavonols and Enzymes Participating in the Metabolism in Onion Bulbs: Mechanism of Accumulation of Quercetin and Its Glucosides in the Abaxial Epidermis
metabolism of quercetin glucosides onion bulbs quercetin
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2009/7/7
Onion bulbs contain quercetin, quercetin 4'-glucoside (Q4'G) and quercetin 3,4'-diglucoside (Q3,4'G), almost all of which are localized in the abaxial epidermis of scales. There is a question of wheth...
Investigation and Identification of Antioxidative Flavonols, Quercetin and Kaempferol Glycosides in the Unused Parts of 10 Types of Food Plants Commonly Consumed in Japan
quercetin and kaempferol natural antioxidative flavonols unused part of food plant
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2009/7/7
The antioxidative flavonols, quercetin and kaempferol in the unused parts of 10 types of food plants commonly consumed in Japan were determined by paper chromatography and ultraviolet spectroscopy. Th...
Trtametes versicolor Laccase Mediated Oxidation of Flavonoids. Influence of the Hydroxylation Pattern of Ring B of Flavonols
Influence he Hydroxylation
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2008/11/26
Several flavonols were chemically transformed upon treatment by Trametes versicolor laccase; the majority of the major oxidation products were isolated (HPLC) as pure compounds and their structures un...