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Source
Natural quercetin widely exists in the stem bark, flowers, leaves, buds, seeds and fruits of many plants, mostly in the form of glycosides, such as rutin, quercetin, hyperin, etc. Quercetin can be obtained by acid hydrolysis. Buckwheat stems and leaves, seabuckthorn, hawthorn, and onion have the highest content.
Efficacy and function of quercetin
1. Natural quercetin has good expectorant and antitussive effects, has a certain antiasthmatic effect, and also has a broad anti fibrosis effect. It has been used for a long time to treat chronic bronchitis;
2. Natural quercetin has antioxidant function. For example, to prevent lipid oxidation, it can reduce the consumption of glutathione, improve the activity of antioxidant enzymes, and inhibit lipid peroxidation to protect liver cells from alcoholic oxidative damage. The protective effect is dose and time dependent;
3. Natural quercetin has anti-inflammatory effect, which can reduce the body's immune response to allergens, inhibit the release of IgE mediated allergens from mast cells and IgG mediated histamine release;
Application of quercetin
1. AntioxidantsIt is primarily used in the production of oil, beverages, cold drinks, and meat processing products.
2. A natural dye. It can be used as medium dye. For wool and cotton, use aluminum salt to get yellow, chromium salt to get olive yellow, tin salt to get orange, and iron salt to get olive green. Good soaping resistance, medium sun resistance.
3. Natural quercetin is mainly used in sunscreen cosmetics, and can also be added to face cream, lotion, essence, toner and other skin care products; At the same time, because of its yellow powder appearance, it can be used as a hair dye.
Specification
SPECIFICATION | ||
Product Name: natural quercetin | Origin of Material: china | |
Botanical Source: dried flower buds of locust tree | Part Used: flower | |
ANALYSIS | SPECIFICATION | REMARK |
Appearance | yellow powder | |
Odor | Characteristic | Organoleptic |
Taste | Characteristic | Organoleptic |
Sieve Analysis | 95% pass 80 mesh | |
Loss on Drying | ≤5% | 2 hours at 105°C |
Bulk Density | 40-60g/100ml | |
Total Ash | ≤5% | |
Heavy Metals | ≤10ppm | EP2.4.8 |
As | ≤1ppm | ICP-MS |
Pb | ≤3ppm | ICP-MS |
Microbiological Test | ||
Total Plate Count | ≤10000cfu/g | |
Yeast & Mold | ≤1000cfu/g | |
E.Coli E | Negative | |
Salmonella | Negative | |
Storage: In a cool & dry place. Keep away from strong light and heat. | ||
Shelf Life: 2 years when properly stored. | ||
* There is likely to be minor color variation from batch to batch due to geographical(origin) and seasonal variations of the material. | ||
Quercetin certificate
Factory environment
Source
Natural quercetin widely exists in the stem bark, flowers, leaves, buds, seeds and fruits of many plants, mostly in the form of glycosides, such as rutin, quercetin, hyperin, etc. Quercetin can be obtained by acid hydrolysis. Buckwheat stems and leaves, seabuckthorn, hawthorn, and onion have the highest content.
Efficacy and function of quercetin
1. Natural quercetin has good expectorant and antitussive effects, has a certain antiasthmatic effect, and also has a broad anti fibrosis effect. It has been used for a long time to treat chronic bronchitis;
2. Natural quercetin has antioxidant function. For example, to prevent lipid oxidation, it can reduce the consumption of glutathione, improve the activity of antioxidant enzymes, and inhibit lipid peroxidation to protect liver cells from alcoholic oxidative damage. The protective effect is dose and time dependent;
3. Natural quercetin has anti-inflammatory effect, which can reduce the body's immune response to allergens, inhibit the release of IgE mediated allergens from mast cells and IgG mediated histamine release;
Application of quercetin
1. AntioxidantsIt is primarily used in the production of oil, beverages, cold drinks, and meat processing products.
2. A natural dye. It can be used as medium dye. For wool and cotton, use aluminum salt to get yellow, chromium salt to get olive yellow, tin salt to get orange, and iron salt to get olive green. Good soaping resistance, medium sun resistance.
3. Natural quercetin is mainly used in sunscreen cosmetics, and can also be added to face cream, lotion, essence, toner and other skin care products; At the same time, because of its yellow powder appearance, it can be used as a hair dye.
Specification
SPECIFICATION | ||
Product Name: natural quercetin | Origin of Material: china | |
Botanical Source: dried flower buds of locust tree | Part Used: flower | |
ANALYSIS | SPECIFICATION | REMARK |
Appearance | yellow powder | |
Odor | Characteristic | Organoleptic |
Taste | Characteristic | Organoleptic |
Sieve Analysis | 95% pass 80 mesh | |
Loss on Drying | ≤5% | 2 hours at 105°C |
Bulk Density | 40-60g/100ml | |
Total Ash | ≤5% | |
Heavy Metals | ≤10ppm | EP2.4.8 |
As | ≤1ppm | ICP-MS |
Pb | ≤3ppm | ICP-MS |
Microbiological Test | ||
Total Plate Count | ≤10000cfu/g | |
Yeast & Mold | ≤1000cfu/g | |
E.Coli E | Negative | |
Salmonella | Negative | |
Storage: In a cool & dry place. Keep away from strong light and heat. | ||
Shelf Life: 2 years when properly stored. | ||
* There is likely to be minor color variation from batch to batch due to geographical(origin) and seasonal variations of the material. | ||
Quercetin certificate
Factory environment
