Prunetin generally refers to prunus flavonoids

Myricetin, molecular formula C15H10O8, molecular weight 318.24.
It can strongly inhibit yeast α-glucosidase, glucosidase I, in vitro glucosidase I and xanthine oxidase in milk. It can be used as an antioxidant. Added to cosmetics for skin whitening effect.

Brief introduction
Foreign name: Myricetin
Molecular formula C15H10O8
Molecular weight 318.24
CAS No.: 529-44-2
MDL No.: MFCD00006827
EINECS No.: 208-463-2
RTECS No.: LK8646000
BRN No.：332331

Physical data
1.Properties: Prunus amygdalin contains a crystal of crystalline water
2. Melting point (ºC): 194-197°C 

Properties and Stability
Packed in glass bottle. Store in a cool, shaded place.

Storage method
Store in a cool, dry, well-ventilated room. Keep away from fire and heat source. Protect from direct sunlight. Packed and sealed. It should be stored separately from acids and edible chemicals, and should not be mixed. The storage area should be equipped with suitable materials to shelter spills.

Use
1. It can be used as an antioxidant.
2. It is added to cosmetics and has the effect of skin whitening. 

Efficacy
1. Antagonistic effect of platelet-activating factor (PAF)
2. hypoglycemic effect
3. antioxidant effect
4. hepatoprotective effect
5. relief of ethanol poisoning
6. In addition to the above proven pharmacological effects, prunetin, the active ingredient in the bark and leaves of Prunus Amygdalus, has various pharmacological activities such as anti-inflammatory, anti-tumor, anti-mutagenic, caries prevention, antioxidant, and elimination of free radicals in the body. 

Application Research
Application studies: Potent inhibition of yeast α-glucosidase, glucosidase I, in vitro glucosidase I and xanthine oxidase in milk. Prunus flavonoids have astringent, stimulant and emetic effects and are used for diarrhea, yellow bile hepatitis, lymphatic tuberculosis, diffuse pharyngitis, etc. Traditionally, the folk in Zhejiang have used yangmei to reduce inflammation and treat toothache. Yangmei for China's specialty resources, in view of regional differences, the current international research on Yangmei just started. Domestic now only Guangxi vine tea contains more research on prunetin, China should carry out comprehensive research on prunes as soon as possible. Zhejiang, as a large province of plum production, has not much research on the active ingredients of the local specialty cash crop plum. In view of the mature pharmacological and extraction research of prunetin, we can take advantage of the resources to develop the extraction and isolation of Myr from the branches, leaves and bark of prunus, and strengthen the research on its chemical modification, artificial synthesis, and the optimization of the industrial extraction scheme screening. Currently, the U.S. FDA has widely used prunetin in medicine, food, health products and cosmetics. Myr is used as an additive for the prevention of arthritis and inflammation, especially for pregnant women and nursing infants, and is expected to be further developed as an anti-inflammatory drug for special populations, thus reducing the toxic side effects of western antibiotics.

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