High Quality Onion Extract 10%-80% Quercetin

• Certification: ISO, HACCP, Kosher, Halal
• Assay Method: HPLC
• Application Form: Tablet, Capsule
• Application: Health Care Products, Medicine
• State: Powder
• Extract Source: Onion
• Model NO.: 10%-80% Quercetin
• Botanical Source: Allium Cepa L.
• Plant Part Used: Bulb, Non-GMO
• Appearance: Fine Yellow Powder with Bit Green
• Assay: 80% Quercetin
• Loss on Drying: Nmt 12.0%
• Ash Content: Nmt 5.0%
• Extract Solvents: Ethanol & Water
• Heavy Metals: Nmt 10ppm
• Arsenic (as): Nmt 2ppm
• Lead (Pb): Nmt 3ppm
• Cadmium (CD): Nmt 1ppm
• Mercury(Hg): Nmt 0.2ppm
• Total Plate Count: <1,000cfu/G
• Total Yeast & Mold: <100cfu/G
• E. Coli: Negative
• Transport Package: Plastic Bottle
• Specification: 10%-80% Quercetin
• Trademark: Kingherbs
• Origin: China
• HS Code: 2938909090
• Production Capacity: 10ton/Month

Product Description

Onion Extract

Synonym(s):Quercetin 4'-glucoside.
CAS NO.:20229-56-5
Molecular Formula:C21H20O12 ;
Molecular Weight:464.382
Appearance: Fine yellowish green powder
Melting Point: MP 240-241 (209-210)
 

Product Name		Onion Extract
Botanical Source		Allium Cepa L.
Plant Part Used		Bulb, 100% Natural
Type of Product		Standard Extract
Analysis Items		Specifications
Appearance		Fine yellow powder with bit green
Odor & Taste		Characteristic
Bulk Density		45-60g/100ml
Solubility		Soluble in Ethanol & Water solution
Assay		NLT 80% Quercetin
Loss on Drying		NMT 12.0%
Ash Content		NMT 5.0%
Extract Solvents		Ethanol & Water
Solvent Residues		NMT 0.05%

Onion is a very healthy vegetable. At the same time, the nutritional value of onion has many benefits for health. For example, the "selenium" in onion is a very good antioxidant substance and can reduce the risk of people suffering from cancer. 

About 88 grams of water per 100 grams of fresh onion, 1-1.8 grams of protein, 0.3 to 0.5 grams of fat, 5-8 grams of carbohydrate, 0.5 grams of crude fiber, 130 kilojoules of calories, 12 mg of calcium, 46 mg of phosphorus, 0.6 mg of iron, 14 mg of vitamin C, 0.5 mg of niacin, 0.05 mg of riboflavin, Thiamine 0.08 mg, carotene 1.2 mg.

Onions are the only vegetable known to contain prostaglandin A. Prostaglandin A dilates blood vessels and reduces blood viscosity, thereby lowering blood pressure, increasing blood flow to coronary arteries and preventing thrombosis. Onions are rich in quercetin, which is biologically available and may help prevent the oxidation of low-density lipoprotein (LDL), providing important protection against atherosclerosis, scientists report.

Onions' cancer-fighting properties come from their high levels of selenium and quercetin. Selenium is an antioxidant that can eliminate free radicals in the body, enhance cell vitality and metabolism, and has the effect of cancer prevention and anti-aging.