WHAT IS QUERCETIN POWDER?

Quercetin Powder is a naturally occurring pigment and flavonoid found in many fruits, vegetables and grains. It is among the most plentiful flavonoids in the human diet and plays a key role in protecting the body from free radical damage, which is associated with chronic illnesses.

Quercetin, commonly derived from Sophora japonica (flower buds) and abundant in onions and grapes, interacts synergistically with other bioflavonoids and can enhance the absorption of certain supplements. As a potent antioxidant, bulk quercetin powder neutralizes free radicals that cause oxidative stress. It also exhibits anti-inflammatory and immune-supportive properties.

BASIC INFORMATION:

Product name: Natural Sophora flower bud extract — Quercetin powder (pharmaceutical grade)
Specification: Quercetin 98% (HPLC) — Typical spec. 95% Quercetin (UV)
Keywords: Sophora Japonica Extract, quercetin
Delivery time: 1–3 working days
Package: 25 kg fiber drum
Shelf life: 2 years

ITEM / SPECIFICATION / RESULTS

  • Assay: ≥98% / Complies
  • Odor: Characteristic
  • Sulfated ash: ≤5.0% / Complies
  • Loss on drying: ≤5.0% / Complies
  • Sieve analysis: 100% pass 80 mesh / 2.0%
  • Chemical control: (specified) / 3.3%
  • Heavy metals: ≤10 ppm / Complies
  • Arsenic: ≤2 ppm / Complies
  • Total plate count: ≤10,000 cfu/g / Complies
  • Yeast & mold: ≤100 cfu/g / Complies
  • E. coli: Negative / Complies
  • Salmonella: Negative / Complies

BULK QUERCETIN POWDER BENEFITS:

  1. May reduce inflammation

    Quercetin’s antioxidant action helps limit free radical damage. Elevated free radicals can trigger genes that promote inflammation, and chronic inflammation is linked to conditions such as certain cancers and cardiovascular and kidney diseases. Controlling oxidative stress may therefore help moderate inflammatory responses.


  2. May ease allergy symptoms

    Quercetin has demonstrated anti-allergic potential in laboratory and animal studies by inhibiting enzymes and signaling molecules involved in inflammation, such as histamine. Some animal research indicates it can suppress severe allergic reactions, though human data are limited and further study is required.


  3. Potential anti-cancer effects

    Due to its antioxidant and signaling effects, quercetin has shown the ability in cell and animal studies to inhibit proliferation and induce apoptosis in various cancer cell types, including prostate, liver, lung, breast, bladder, blood, colon, ovarian, lymphoid and adrenal cancers. These findings are preliminary and clinical trials in humans are needed before recommending quercetin as a cancer therapy.


  4. May protect against neurodegenerative disorders

    Animal research suggests quercetin’s antioxidant and anti-inflammatory properties may slow or reverse some markers of neurodegeneration, such as those seen in Alzheimer’s disease, and may improve cognitive function in early disease stages. More research in humans is necessary to confirm these effects.


  5. May help lower blood pressure

    Some studies indicate quercetin may promote vasodilation and help reduce blood pressure, which could lower cardiovascular risk. Laboratory experiments have shown relaxing effects on blood vessels, and clinical data are promising but not yet conclusive.


  6. May support healthy aging

    Preclinical studies indicate quercetin might help eliminate senescent cells and reduce biomarkers of aging, but human evidence is still limited.


  7. May improve exercise performance

    A review of human trials reported a modest improvement in endurance exercise capacity with quercetin supplementation.


  8. May assist blood sugar control

    Animal and human studies suggest quercetin can help lower fasting blood glucose and may protect against some diabetes-related complications.


BULK QUERCETIN POWDER APPLICATIONS:

  1. Pharmaceutical applications:

    Quercetin can be formulated with agents such as bromelain to create throat lozenges, anti-inflammatory preparations, digestive aids and immune-support products. It has been applied in investigational and supportive uses for gynecological conditions, glaucoma, and insect-bite reactions.


  2. Food industry:

    Quercetin and related extracts can be used in plant and animal protein hydrolysis processes. Applications include meat tenderizers, wine clarifiers, noodle stabilizers, health foods and soy sauce fermentation, where they may also enhance nutritional profiles.


EXTRACTS CHINA — BULK QUERCETIN POWDER SUPPLIER

Extracts China maintains long-term partnerships with clients by prioritizing customer service and delivering high-quality ingredients. We offer flexible order customization to meet specific formulations and rapid lead times to ensure timely delivery.

Our value-added services include technical support and product guidance to help integrate quercetin into your products and processes.

Why choose Extracts China for Bulk Quercetin Powder?

Extracts China has focused on supplying bulk quercetin for several years. We provide competitively priced, high-quality materials that undergo rigorous, independent testing to ensure safety and consistency for global distribution.

Where to buy Bulk Quercetin Powder?

To inquire or place an order, please email [email protected]. We are available to discuss your requirements and provide prompt assistance.

References:

  1. Davis JM, Murphy EA, Carmichael MD. Effects of the dietary flavonoid quercetin upon performance and health. Curr Sports Med Rep. 2009;8:206–213.


  2. Aguirre L, Arias N, Macarulla MT, Gracia A, Portillo MP. Beneficial effects of quercetin on obesity and diabetes. Open Nutraceuticals J. 2011;4:189–198.


  3. Thornhill SM, Kelly AM. Natural treatment of perennial allergic rhinitis. Altern Med Rev. 2000;5(5):448–454.


  4. Dajas F. Life or death: neuroprotective and anticancer effects of quercetin. J Ethnopharmacol. 2012;143(2):383–396.


  5. Gates MA, Tworoger SS, Hecht JL, De Vivo I, Rosner B, Hankinson SE. Prospective study of dietary flavonoid intake and incidence of epithelial ovarian cancer. Int J Cancer. 2007.


  6. Li N, Sun C, Zhou B, et al. Low concentration of quercetin antagonized the cytotoxic effects of anti-neoplastic drugs in ovarian cancer. PLoS One. 2014;9(7):e100315.


  7. Skaper SD, Facci L, Zusso M, Giusti P. An Inflammation-Centric View of Neurological Disease: Beyond the Neuron. Front Cell Neurosci. 2018;12:72.


  8. Garofalo S, Cocozza G, Bernardini G, et al. Blocking immune cell infiltration of the central nervous system to tame neuroinflammation in amyotrophic lateral sclerosis. Brain Behav Immun. 2022;105:1–14.


  9. Ursoniu S, Sahebkar A, Andrica F, Serban C, Banach M. Effects of flaxseed supplements on blood pressure: a systematic review and meta-analysis of controlled clinical trials. Clin Nutr. 2016;35:615–625.


  10. Banach M, Aronow WS, Serban MC, et al. Lipids, blood pressure and kidney update 2014. Pharmacol Res. 2015;95–96:111–125.


  11. Ballester PL, Suh JS, Nogovitsyn N, et al. Accelerated brain aging in major depressive disorder and antidepressant treatment response: A CAN-BIND report. NeuroImage Clin. 2021;32:102864.


  12. Quercetin and endurance exercise capacity: systematic reviews and meta-analyses have examined its effects on performance; consult relevant literature for details.


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