上游充通大学 1.Fatty Acids Are Key Constituents of Lipids SHANGHAI JIAO TONG UNIVERSITY Fatty Acids Vary in Chain Length and Degree of Unsaturation TABLE 12.I Some naturally occurring fatty acids in animals Number of Number of Common carbons double bonds name Systematic name Formula 12 0 月桂酸 Laurate n-Dodecanoate CHg(CH2)oCOO 0 豆蔻酸 Myristate n-Tetradecanoate CHg(CH2)12COO 0 棕榈酸 Palmitate n-Hexadecanoate CH3(CH2)14COO 0 硬脂酸 Stearate n-Octadecanoate CH3(CH2)1COO 1802461818 0 廿烷酸 Arachidate n-Eicosanoate CHg(CH2)18COO 0 山嵛酸 Behenate n-Docosanoate CH3(CH2)20COO- 0 木蜡酸 Lignocerate n-Tetracosanoate CH(CH2)22COO 1 棕榈油酸 Palmitoleate cis-A9-Hexadecenoate CH3 (CH,)CH-CH(CH,).COO 1 油酸 Oleate cis-A9-Octadecenoate CH3(CH,).CH-CH(CH,).COO 2 亚油酸 Linoleate ci,cis-A9,△12. CH3(CH2)(CH-CHCH2)(CH).COO Octadecadienoate 18 3 亚麻酸 Linolenate al-cis-△9，△12，△15. CH,CH2(CH-CHCH2)3(CH2).COO Octadecatrienoate 20 4花生四烯酸Arachidonate all-cis△5，△8，A11,-A14 CHg(CH2)a(CH-CHCH2)a(CH2)2COO EicosatetraenoateFatty Acids Vary in Chain Length and Degree of Unsaturation 1. Fatty Acids Are Key Constituents of Lipids 月桂酸 豆蔻酸 棕榈酸 硬脂酸 廿烷酸 山嵛酸 木蜡酸 棕榈油酸 油酸 亚油酸 亚麻酸 花生四烯酸