異油酸是一種可以從乳製品(例如酸奶奶酪)中獲得的天然ω−7反式脂肪酸

異油酸
IUPAC名
(E)-Octadec-11-enoic acid
識別
CAS號 693-72-1  checkY
PubChem 5281127
ChemSpider 4444571
SMILES
 
  • CCCCCC/C=C/CCCCCCCCCC(O)=O
InChI
 
  • 1/C18H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h7-8H,2-6,9-17H2,1H3,(H,19,20)/b8-7+
InChIKey UWHZIFQPPBDJPM-BQYQJAHWBK
ChEBI 28727
性質
化學式 C18H34O2
摩爾質量 282.461 g/mol g·mol⁻¹
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。

異油酸與健康

雖說異油酸是一種反式脂肪酸,但是這種天然反式脂肪可以降低人類血液裏面的低密度膽固醇三酸甘油酯。這正好與其它反式脂肪的作用相反。食用異油酸的人可以減少發生動脈硬化心臟病的發病率。[1] 異油酸也是人奶中的主要反式脂肪。 [2][3]在哺乳動物體內,細胞會把異油酸轉化成一種共軛亞油酸[4][5] 共軛亞油酸可以抑制致癌物質的活性。[6]

參考文獻

  1. ^ Natural trans fats may be good for you.頁面存檔備份,存於互聯網檔案館) May 19, 2008(英文)
  2. ^ Precht, D and J.Molkentin C18:1, C18:2, and C8:3 trans and cis fatty acid isomers including conjugated cis delta 9, trans delta 11 linoleic acid (CLA) as well as total fat composition of German human milk lipids, Nahrung 1999 43(4) 233-244(英文)
  3. ^ Friesen, R, and S.M. Innis, Trans Fatty acids in Human milk in Canada declined with the introduction of trans fat food labeling, J. Nut 2006, 136 2558-2561(英文)
  4. ^ Bauman, Dale. cis-9, trans-11 CLA - A Potent Anticarcinogen Found in Milk Fat. [2007-01-15]. (原始內容存檔於2006-09-07) (英語). 
  5. ^ Banni S, Angioni E, Murru E, Carta G, Melis M, Bauman D, Dong Y, Ip C. Vaccenic acid feeding increases tissue levels of conjugated linoleic acid and suppresses development of premalignant lesions in rat mammary gland. Nutr Cancer. 2001, 41 (1–2): 91–7. PMID 12094634. doi:10.1207/S15327914NC41-1&2_12. 
  6. ^ Lock AL, Corl BA, Barbano DM, Bauman DE, Ip C. The anticarcinogenic effect of trans-11 18:1 is dependent on its conversion to cis-9, trans-11 CLA by delta9-desaturase in rats. J Nutr. October 1, 2004, 134 (10): 2698–704 [2007-01-15]. PMID 15465769. (原始內容存檔於2007-03-17).