Chemistry Resveratrol

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resveratrol photoisomerization



one study showed ultraviolet irradiation cis-resveratrol induces further photochemical reaction, producing fluorescent molecule named resveratrone .


trans-resveratrol in powder form found stable under accelerated stability conditions of 75% humidity , 40 °c in presence of air. trans isomer stabilized presence of transport proteins. resveratrol content stable in skins of grapes , pomace taken after fermentation , stored long period. h- , c-nmr data 4 common forms of resveratrols reported in literature.


biosynthesis

resveratrol produced in plants action of enzyme, resveratrol synthase.


biotransformation

the grapevine fungal pathogen botrytis cinerea able oxidise resveratrol metabolites showing attenuated antifungal activities. include resveratrol dimers restrytisol a, b, , c, resveratrol trans-dehydrodimer, leachinol f, , pallidol. soil bacterium bacillus cereus can used transform resveratrol piceid (resveratrol 3-o-beta-d-glucoside).








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