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山柰酚

山柰酚
IUPAC名
3,5,7-Trihydroxy-2-(4-hydroxyphenyl)-4H-chromen-4-one
识别
CAS号 520-18-3  checkY
PubChem 5280863
SMILES
 
  • C1=CC(=CC=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)O)O
KEGG C05903
性质
化学式 C15H10O6
摩尔质量 286.23 g·mol⁻¹
熔点 276-278 °C
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

山柰酚(Kaempferol)是一种天然黄酮类化合物,是存在于茶叶[1]西兰花、翠雀草、金缕梅葡萄柚抱子甘蓝苹果等植物中植源性物质。山柰酚为黄色结晶体,熔点为276-278℃,微溶于水,溶于乙醇乙醚的热混合物中。

生物活性

一些病理学研究已发现,山柰酚的摄取与降低许多疾病的发生率之间存在正相关,如癌症心血管疾病等。大量临床前研究表明,山柰酚和部分山柰酚苷具有广泛的药理活性,包括抗氧化、抗炎抗菌抗癌、保护心脏、保护神经抗糖尿病抗骨质疏松抗雌激素抗焦虑止痛抗过敏等作用。[2]

线叶金合欢(Acacia decurrens)和长叶金合欢(Acacia longifolia)花朵的黄色即来源于山柰酚。[3]

一项历时8年的研究发现,山柰酚、槲皮素杨梅素可降低吸烟者患胰腺癌的风险。[4]

山柰酚的摄入亦可降低肺癌的发生率。[5]

代谢方式

山柰酚4-O-甲基转移酶可利用S-腺苷蛋氨酸和山柰酚合成S-腺苷高半胱氨酸山柰素

成苷

原料植物名单

已确定许多可食用的植物中存在山柰酚。[2]

也已确定山柰酚存在于许多用作为传统药物的植物中。[2]

参考文献

  1. ^ Jun Seong Park, Ho Sik Rho, Duck Hee Kim, and Ih Seop Chang. Enzymatic Preparation of Kaempferol from Green Tea Seed and Its Antioxidant Activity. J. Agric. Food Chem. 2006, 54 (8): 2951–2956. PMID 16608214. doi:10.1021/jf052900a. 
  2. ^ 2.0 2.1 2.2 Calderon-Montaño JM, Burgos-Moron E, Perez-Guerrero C, Lopez-Lazaro M. A review on the dietary flavonoid kaempferol.. Mini Rev Med Chem. 2011, 11 (4): 298–344. PMID 21428901. doi:10.2174/138955711795305335. 
  3. ^ Lycaeum -- Phytochemistry Intro 互联网档案馆存档,存档日期2007-09-30.
  4. ^ Ute Nöthlings, Suzanne P. Murphy, Lynne R. Wilkens, Brian E. Henderson & Laurence N. Kolone. 2007. Flavonols and Pancreatic Cancer Risk. American Journal of Epidemiology 166(8): 924–931. doi:10.1093/aje/kwm172
  5. ^ Irwin, Kim. Fruits, vegetables, teas may protect smokers from lung cancer. News Releases. UCLA. May 29, 2008 [2011-06-17]. (原始内容 (HTML)存档于2012-02-13). 
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山柰酚
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