ケルセチン粉末
植物由来： Sophora japonica
仕様： 98%
外観： Yellow Fine powder
中古部品： Flower Bud
試験方法： UV
Molecular Formula: C15H10O7
Molecular Weight: 302.236
CAS No.: 117-39-5
最小注文数量（MOQ）： 1 kg
サンプル： 20 g
梱包： アルミ箔袋入り 1 kg、ファイバードラム入り 25 kg
配送： フェデックス、DHL、航空便、海上便
認定資格： ISO、HACCP、コーシャ、ハラール、BRC
特長：
未照射
遺伝子組み換え不使用、アレルゲン不使用、TSE/BSE不使用
製造、保管、輸送の過程において、ETOによる処理は行われていません
お問い合わせはこちら
お問い合わせ先
弊社が貴社にどのようなお役に立てるか、ご質問はございますか？メールでお問い合わせいただければ、折り返しご連絡いたします。.
新製品
Reliable Quercetin Powder Manufacturer & Bulk Supplier
Greenherb operates a dedicated flavonoid extraction line for Quercetin Powder. We source Sophora japonicaflower buds from contracted orchards, applying short-steam enzyme inactivation and sub-50°C ethanol extraction to protect native quercetin from enzymatic and thermal degradation. Recrystallization steps push assay to 95%/98% (HPLC, USP-aligned). Full export documentation and third-party testing ship with every batch.
Why Choose Greenherb Quercetin Powder
● Bud-Exclusive Sourcing – Unlike onion- or apple-derived material with <0.1% native quercetin, Sophorabuds deliver stable high-baseline actives, making our pure quercetin powder (98%) viable without excessive solvent cycling.
● Recrystallization Over Crude Extract – Many suppliers stop at resin-purified quercetin extract (mixed flavonoids: quercetin + rutin + kaempferol). We run an extra recrystallization pass to isolate single-marker quercetin, cutting residual rutin to <1%.
● Enzyme-Inactivation Pretreatment – Steam-blanching buds within 4h of harvest stops endogenous enzymes that break down quercetin, a step most bulk vendors skip.
● USP-NF Alignment – 98% grade tested against USP monograph (HPLC, impurity profile), suited for brands positioning best quercetin powder claims with verifiable compliance.
● Light-Sensitive Handling – 98% crystalline grade vacuum-packed in amber barrier bags, nitrogen-flushed drums to prevent oxidative yellowing during storage.
● Heavy Metal & Pesticide Screening – Multi-point ICP-MS and GC-MS per EU/US food-grade thresholds.
● Mesh & Carrier Flexibility – Default 80 mesh; carrier-adjusted grades (maltodextrin/silica) available for capsule flow or drink-mix dispersibility.
● Direct Bulk Pricing – Transparent quotes for quercetin powder bulk from 25kg trial to full FCL, no distributor layer.
分析証明書
製品紹介
Quercetin Powder is a single-marker flavonol ingredient isolated from Sophora japonicaflower buds. It differs from broad-spectrum Sophoratotal flavonoid extract (which carries quercetin + rutin + kaempferol in unstandardized ratios): this product locks quercetin as the sole primary marker via recrystallization, delivering batch-consistent assay for formulators who need a defined flavonol load rather than a mixed botanical matrix. Two commercial grades run: 95% for blended immune SKUs and 98% for premium single-ingredient capsules.
製造工程
Greenherb follows a quercetin-specific workflow:
-
Bud Harvest & Enzymatic Kill – Sophorabuds picked at full plumpness, steam-blanched <4h post-harvest to deactivate quercetinase.
-
Low-Temp Drying – Belt drying <45°C, then uniform grinding.
-
Ethanol Extraction – Sub-50°C ethanol pulls quercetin and companion flavonoids.
-
Resin Purification – Macroporous resin strips rutin and pigments, concentrating quercetin fraction.
-
Recrystallization – Solvent-based crystal purge pushes assay to 98%, residue rutin <1%.
-
Vacuum Drying – Low-heat drying preserves crystalline structure.
-
QC Release – HPLC (USP method) for quercetin assay, impurity check, heavy metals, pesticides, microbiology per batch.
-
Protective Packaging – 98% grade vacuum-sealed in amber PE + desiccant, nitrogen-flushed fiber drums; 95% grade in standard light-shielded drums.
機能的特性と利点
● Single-Marker Consistency – No lot-to-lot drift from mixed flavonoid loads; assay locked on quercetin via HPLC.
● Antioxidant Anchor – Frequently paired with vitamin C, rutin, or bromelain in synergistic immune/inflammatory-support blends.
● Formulation Versatility – 95% grade for cost-sensitive blends, 98% crystalline for premium SKUs requiring label claim precision.
● Stability Engineered – Low moisture + nitrogen + amber packaging supports 24-month shelf for 98% grade.
用途
Immune & Seasonal Wellness
Capsule/tablet fill for quercetin-only or quercetin+vitamin C/rutin blended SKUs.
Sports Recovery
98% grade for post-exercise oxidative-stress formulations, often combined with bromelain or omega-3 carriers.
Functional Food & Beverage
Carrier-adjusted 95% grade for drink mixes, gummies, and fortified snack lines needing dispersible flavonol content.
Private Label R&D
Lab samples for brands testing quercetin stability in high-heat processing (extrusion, retort) — our low-moisture 98% grade shows better thermal retention than crude extracts.
Contact Greenherb for Quercetin Powder Supply
Greenherb supplies Quercetin Powder in 95% and 98% grades, with full USP-aligned COA and regulatory dossiers. We accommodate quercetin powder bulk orders from 25kg trial batches to full container loads, and can adjust carrier systems for dispersibility or compressibility on request.
For technical data or sample requests, contact our sourcing team directly.
Greenherb – Your Strategic Partner for Specialty Botanical Extracts.
GreenHerbは、高品質な植物エキス粉末の信頼できるサプライヤーです。当社は、お客様のご要望に応じた仕様の提供、厳格な第三者機関による品質管理、そして確実な世界中への配送を実現しています。サンプルのご依頼から大量注文まで、世界中のお客様に純度が高く、品質が安定した原料をお届けします。.
世界各国への配送対応
当社は、すべての植物エキス粉末商品について、世界中への配送サービスを提供しています。ご注文は、ほとんどの国や地域へお届け可能であり、多様な国際ビジネスのニーズにお応えします。.
安全かつ効率的な配送
- ご注文ごとに、すべての通関書類（インボイス、原産地証明書、梱包明細書）および追跡番号をご提供いたします。送料はチェックアウト時に計算されます。大量注文の場合は、弊社までお問い合わせいただければ、競争力のある運賃のお見積もりをご提示いたします。.
- 柔軟な包装オプションをご用意しております：1kg、5kg、10kg、25kgの袋、またはバルク用ドラム缶。袋の素材（アルミ箔、クラフト紙）はお客様のご要望に合わせて変更可能です。
お問い合わせはこちら
お問い合わせ先
弊社が貴社にどのようなお役に立てるか、ご質問はございますか？メールでお問い合わせいただければ、折り返しご連絡いたします。.
