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发布人:长沙上禾生物科技有限公司
发布日期:2026/7/18 21:24:22
公司官网 http://www.staherb.com/ 资质:HALAL, KOSHER等认证
☎:19573130018 杨经理(微信同号)
活性成分名称:槲皮素(Quercetin),别名栎精、槲皮黄素、Meletin、Sophoretin。
化学归属:天然黄酮类化合物,属黄酮醇亚类,具有典型的C6-C3-C6碳骨架(2-苯基色原酮结构),化学名为 3,3',4',5,7-五羟基黄酮 或 2-(3,4-二羟基苯基)-3,5,7-三羟基-4H-1-苯并吡喃-4-酮。
理化标识:
CAS号:117-39-5(无水物);6151-25-3(二水合物)
分子式:C₁₅H₁₀O₇(无水);C₁₅H₁₀O₇·2H₂O(二水合物)
分子量:302.24(无水);338.27(二水合物)
性状:黄色至黄绿色结晶性粉末,无臭,味微苦;极难溶于水,微溶于冷乙醇,可溶于热乙醇、甲醇、乙酸乙酯、冰醋酸及碱性水溶液(显黄色),熔点约314℃(分解)。
活性来源与转化:槐米中原生形态主要以芦丁(Rutin,槲皮素-3-O-芸香糖苷)存在,含量可达10%~20%;上禾生物通过碱提酸沉、生物酶解(芦丁水解)及柱层析/重结晶工艺,脱去糖基获得游离态槲皮素 ≥98%(HPLC)。其分子结构中含有5个酚羟基(尤以B环邻苯二酚结构为关键),是其发挥强效抗氧化、螯合金属离子、调节信号通路的核心结构基础。
核心活性概览:槲皮素是植物界分布最广的多酚之一,在槐花源高纯产品中集中体现以下活性:
抗氧化与抗炎:直接清除ROS/RNS,激活Nrf2/ARE通路,抑制NF-κB、MAPK等炎症通路;
心血管与血管保护:降低毛细血管通透性、增强抵抗力,抗动脉粥样硬化,辅助调节血压血脂;
抗过敏与免疫:稳定肥大细胞膜,抑制组胺及白三烯释放;
代谢与神经保护:辅助降糖、调脂、抗尿酸,潜在神经保护及细胞凋亡调节(抗肿瘤研究)。

Active Ingredient Name: Quercetin (Synonyms: Meletin, Sophoretin, Quercetol).
Chemical Classification: A natural flavonol belonging to the flavonoid family, characterized by the C6-C3-C6 skeleton (2-phenylchromen-4-one backbone).
Chemical Name: 3,3',4',5,7-Pentahydroxyflavone or 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one.
Physicochemical Identity:
CAS No.: 117-39-5 (anhydrous); 6151-25-3 (dihydrate)
Molecular Formula: C₁₅H₁₀O₇ (anhydrous); C₁₅H₁₀O₇·2H₂O (dihydrate)
Molecular Weight: 302.24 (anhydrous); 338.27 (dihydrate)
Properties: Yellow to yellow-green crystalline powder, odorless, slightly bitter; extremely low solubility in water, slightly soluble in cold ethanol, soluble in hot ethanol, methanol, ethyl acetate, glacial acetic acid, and alkaline aqueous solutions (yellow tint); melting point ~314℃ (dec.).
Source & Biotransformation: In Sophora japonica(Huai Mi / Flower buds), quercetin predominantly exists as its glycoside Rutin (Quercetin-3-O-rutinoside) (naturally 10%~20% dw). Staherb employs alkaline extraction-acid precipitation, enzymatic hydrolysis (rutin → quercetin + rutinose), column chromatography, and recrystallization to yield anhydrous/dihydrate Quercetin ≥98% (HPLC). Its five phenolic hydroxyl groups (notably the ortho-catechol moiety on the B-ring) constitute the core pharmacophore for potent free-radical scavenging, metal chelation (Fe²⁺/Cu²⁺), and signaling pathway modulation.
Core Bioactivities Summary: As one of the most abundant dietary polyphenols, high-purity Sophora japonica-derived Quercetin centrally manifests:
Antioxidant & Anti-inflammatory: Direct ROS/RNS neutralization, Nrf2/ARE activation, suppression of NF-κB/MAPK/NLRP3 inflammasome pathways.
Cardiovascular & Vascular Protection: Reduces capillary permeability, strengthens capillary resistance, anti-atherosclerotic potential, adjunct blood pressure/lipid modulation.
Anti-allergic & Immune: Mast cell membrane stabilization, inhibition of histamine/leukotriene release.
Metabolic & Neuroprotective: Adjunct glycemic/lipid/uric acid regulation; potential neuroprotection and apoptotic modulation (cancer chemoprevention research).
⚠️ 特性提示:游离槲皮素水溶性极差,对光、热(>200℃降解)、氧、碱敏感,制剂中常需纳米化、环糊精包合、糖苷化(如制成芦丁/异槲皮苷)或磷脂复合物提升生物利用度;上禾生物98%产品多为黄色结晶粉末,需避光、充氮、2~8℃或阴凉干燥密封保存。
公司官网 http://www.staherb.com/ 资质:HALAL, KOSHER等认证
☎:19573130018 杨经理(微信同号)
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