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Specifications
1).Product name: Myricitrin;
2).Chemical name: Myricetin-3-rhamnoside; 5,7-Dihydroxy-3-((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-2-(3,4,5-trihydroxy-phenyl)-1-benzopyran-4-one;
3).Molecular Formula: C21H20O12;
4).Molecular Weight: 464.38;
5).CAS No.: 17912-87-7;
6).Spec: Myricitrin98% (HPLC);
7).Appearance: Light yellow to off-white crystalline powder;
Desription
The inhibitory effect of a 50% ethanol extract obtained from the dried leaves and the bark of Myrica rubra, was investigate in vitro on melanin biosynthesis which is closely related to hyperpigmentation. These extracts inhibited tyrosinase activity which converts dopa to dopachrome in the biosynthetic process. Furthermore, the extracts inhibited the production of melanin from dodopachrome by autoxidation and also showed superoxide dismutase (SOD)-like activity. After bioassay-guided fractionation, quercetin, myricetin and myricetin 3-O-rhamnoside were isolated from the leaves. As they showed the inhibitory effect on tyrosinase activity, the activity is partially attributable to them in the extract of Mrubra. These results suggested that the leaves or the bark of mrubra might be used as a whitening agent for the skin.
Function
Anti-inflammatory effect
Anti-cancer effect
Potent DHT inhibitor
Powerful stimulant
Astringent and tonic to the alimentary tract
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