Sophora Japonica Extract Extracting Chemicals From Plants Quercetin 98%
Sophora Japonica Extract Extracting Chemicals From Plants Quercetin 98%
What is Quercetin?
Quercetin is a flavonoid widely distributed in nature. The name has been used since 1857, and is derived
fromquercetum (oak forest), after Quercus. It is a naturally-occurring polar auxin transport inhibitor.
Quercetin is the aglycone form of a number of other flavonoid glycosides, such as rutin and quercitrin, found
in citrus fruit, buckwheat and onions. Quercetin forms the glycosides quercitrin and rutin together with rhamnose
and rutinose, respectively. Likewise guaijaverin is the 3-O-arabinoside, hyperoside is the 3-O-galactoside,
isoquercitin is the 3-O-glucoside and spiraeoside is the 4'-O-glucoside. CTN-986 is a quercetin derivative found in
cottonseeds and cottonseed oil. Miquelianin is the quercetin 3-o-β-d-glucuronopyranoside.
Quercetin HPLC 98%
Main Contents: Quercetin
Synonym(s): 2-(3,4-dihydroxyphenyl)- 3,5,7-trihydroxy-4H-chromen-4-one
Product Specification: 98% HPLC
Appearance: yellow powder
Extract Solution: Water/ Ethyl Acetate
Molecular formula and weight: C15H10O7, 302.236
Melting Point: 316 °C
| Characters | ||
| Appearance | Yellow, crystalline powder | Yellow, crystalline powder |
| Solubility | Practically insoluble in water | Complies |
| Soluble in aqueous alkaline sol. | Complies | |
| Identification | Must positive | Complies |
| Tests | ||
| Loss on drying | ≤8-12% | 10.5% |
| Sulphated ash | ≤0.2% | 0.15% |
| Heavy Metal | ≤10PPM | <10PPM |
| Mesh Size | 100% pass 80 mesh | Complies |
| Assay (HPLC) | 95% | 95.36% |
| Microbiological test | ||
| Total plate count | ≤1000CFU/g | Complies |
| Yeast & Mould | ≤100CFU/g | Complies |
The features of Quercetin:
quercetin is a potent antioxidant and has anti-inflammatory activity, protecting cellular structures and blood vessels from the damaging effects of free radicals. It improves blood vessel strength. Quercetin inhibits the activity of catechol-O-methyltransferase that breaks down the neurotransmitter norepinephrine. This effect may lead to elevated levels of norepinephrine and an increase in energy expenditure and fat oxidation. It also means quercetin acts as an antihistamine leading to relief of allergies and asthma. As an antioxidant, it reduces LDL cholesterol and offers protection from heart disease. Quercetin blocks an enzyme that leads to accumulation of sorbitol, which has been linked to nerve, eye, and kidney damage in diabetics.
Applications:
1.expectorative effect and a cough
2.lower blood pressure,
3.and enhance capillary resistance
4.reduce blood capillary brittleness,
5.fall hematic fat, dilating coronary artery,
6.and increased coronary blood flow