Quercetin Powder

Introduction

Quercetin Powder is a flavonol compound that is widely distributed in the plant kingdom and has multiple biological activities. It mainly comes from plants such as acerola, tea, red onion, raspberry, and lingonberry.
Pure Quercetin Powder is widely present in the stem bark, flower, leaf, bud, seed, and fruit of many plants, mostly in the form of glycosides, such as rutin, quercetin, hypericin, etc. Quercetin can be obtained by acid hydrolysis cortex. Among them, the content is higher in the stems and leaves of buckwheat, sea buckthorn, hawthorn and onion. Quercetin is also found in many foods, such as onions, shallots, asparagus, cabbage, mustard greens, green peppers, endive, grapefruit, lettuce, hawthorn, apples, mangoes, plums, radishes, blackcurrants, potatoes, and spinach. 

【Source】 Quercetin and its derivatives are widely present in various vegetables and fruits, and can be obtained from onions of the Liliaceae family and other plant extracts such as rutin, quercetin, isoquercetin, anethole glycoside, quercetin, and calycin.

【Appearance】This product is yellowish powder.

【Chemical composition】 Quercetin(C₁₅H₁₀O₇)

【Solubility】Insoluble in water; ≥15.1 mg/mL in DMSO; ≥3.28 mg/mL in ethanol

Certificate of Analysis

Quercetin powder is a powder of flavonol compounds extracted from plants.Quercetin is a flavonol compound that is widely distributed in the plant kingdom and has multiple biological activities. Quercetin is widely present in the stem bark, flowers, leaves, buds, seeds, and fruits of many plants, mostly in the form of glycosides, such as rutin, quercetin, hyperoside, etc. Quercetin can be obtained by acid hydrolysis.

Main Functions

Antioxidant effect: Quercetin powder  is a powerful antioxidant that neutralizes free radicals and reduces the damage of oxidative stress to the body. This helps protect cells from oxidative damage, slows the aging process, and reduces the risk of chronic diseases such as cardiovascular disease, cancer, and neurodegenerative diseases.

Anti-inflammatory effect: Quercetin has anti-inflammatory properties and can inhibit inflammatory responses and the release of inflammatory mediators. This is very beneficial for reducing the symptoms of inflammatory diseases and inflammation-related pain, such as arthritis, inflammatory bowel disease, and allergic diseases.

Immunomodulation: It can regulate the function of the immune system and enhance the body's immunity. It helps to improve resistance, enhance the activity of immune cells, and promote the interaction of immune cells, thereby enhancing defense against infection and disease.

Cardiovascular protection: It is very beneficial for cardiovascular health. It can lower blood pressure, regulate blood lipid levels, especially reduce the oxidation of low-density lipoprotein cholesterol (LDL-C), and prevent the occurrence of atherosclerosis. In addition, quercetin also helps to inhibit platelet aggregation and reduce the risk of thrombosis.

Anti-allergic effect: It can inhibit the release of histamine and relieve allergic symptoms such as rhinitis and dermatitis. It has good expectorant, cough relieving, blood pressure lowering, coronary artery dilation, and lipid-lowering effects. It is mostly used to treat chronic bronchitis, coronary heart disease, and hypertension3.

Hypoglycemic effect: It can promote the secretion and utilization of insulin and reduce blood sugar concentration. Quercetin can also improve insulin resistance and prevent and treat diabetes.

Hypolipidemic effect: It can reduce serum total cholesterol, triglycerides and low-density lipoprotein cholesterol levels, while increasing high-density lipoprotein cholesterol levels. These effects can reduce the occurrence of atherosclerosis and cardiovascular disease.

It has a mitigating effect on pulmonary nodules: A study by the School of Medicine of Maastricht University in the United States conducted a double-blind intervention experiment on two groups of nodule patients with similar age and gender, non-smokers, and never received relevant treatment. It was found that quercetin supplements improved the body's antioxidant defense, indicating that the total antioxidant capacity of plasma was improved. In addition, quercetin supplementation reduced markers of oxidative stress and inflammation in the blood of patients with sarcoidosis. The higher the levels of oxidative stress and inflammation markers, the more pronounced the effects of quercetin supplementation were.

Application

Food industry: Quercetin, as a natural antioxidant, can be used to preserve meat products, fruits, baked goods and beverages, and extend the shelf life of food.

Medical field: It has a variety of biological activities, such as antioxidant, anti-inflammatory, antiviral, etc., so it is also widely used in the medical field. It can be used to prepare drugs for the treatment of cardiovascular diseases, anti-tumor, antiviral, etc.

Cosmetic industry: Due to the antioxidant and anti-inflammatory effects of quercetin, it is also widely used in cosmetics, such as creams, essences, etc., to help resist skin aging and inflammation.

Agriculture: It can be used as a plant growth regulator to promote plant growth and increase crop yield and quality. At the same time, it also has certain insecticidal and bactericidal effects, and can be used to prevent and control crop diseases and pests.

Packing

For powder products, we usually send the products together with cartons or fiber drums.For liquid products, we usually send the product together with a plastic.

Our packaging methods are 1 kg/aluminum bag, 25 kg/box, and 25 kg/barrel. For some products that require special packaging during transportation, we will carry out more detailed packaging.

Transportation

We support shipping by air, sea, FedEx, DHL, TNT, EMS, UPS, SF, and other carrier.

Our laboratory and Factory

As a professional plant extract supplier, our quality inspection department is equipped with the most advanced testing and identification instruments, such as UPLC, HPLC, UV and TT (active ingredients) GC and GC-MS (solvent residue), ICP-MS ( Heavy metals), GC/LC-MS-MS (pesticide residues), HPTLC and IR (identification), ELIASA (ORAC value), PPSL (irradiation residues), microbial detection, etc.

Contact us

To view our brochure or discuss a bulk order, contact us at information@sxrebecca.com.

FAQ

How do I make an order?
For Further Information, please contact: information@sxrebecca.com. We will connect you with one of our account managers who will be happy to assist you with your order.
When will my order ship?
Products in stock usually ship within 24-48 hours of your order being received and processed. If a product is not in stock, delivery time varies but is generally about 3-5 days, depending on exact order quantity.
What is your Return Policy?
Your satisfaction is very important to us. If there are any problems with the product you receive, please contact your account manager within 10 days of receiving of your order. Upon receipt and inspection, Shaanxi Rebecca will issue a credit, refund or replacement.
How can I pay for my order?
We accept T/T(Telegraphic Transfer)，L/C. etc.