乌桕梓油脂肪酸组成分析  

Study on Fatty Acids from Chinese Tallow Kernel Oil

作　　者：陶俊杰[1] 陈文伟[1] 高荫榆[2] 洪瑶[1] 

机构地区：[1]中国计量学院生命科学学院,浙江杭州310018 [2]南昌大学食品科学与技术国家重点实验室,江西南昌330047

出　　处：《广东化工》2011年第9期145-145,138,共2页Guangdong Chemical Industry

摘　　要：乌柏是我国四大木本油料之一,种子含油量高,乌桕梓油是由种仁榨取所得的液体油脂,是轻工业、食品和国防等行业的重要油源。乌桕梓油甲酯化后,利用100 m×0.25 mm的GC毛细管柱,气相色谱法测定乌桕梓油的脂肪酸组成。测定结果表明:乌桕梓油中饱和脂肪酸占10.68%,以棕榈酸含量最高,占7.52%。不饱和脂肪酸占89.13%,单不饱和脂肪酸占18.63%,以油酸含量最高,占14.55%;多不饱和脂肪酸占70.50%;其中含量最高的为人体所必需的脂肪酸亚油酸和α-亚麻酸,分别占30.77%和39.30%。还含有相当数量天然植物中少有的奇数碳原子脂肪酸十一烷酸,占0.29%。其中月桂烯酸(占3.19%)和十一烷酸未见报道。The Chinese tallow was ranked in top four woody oil plants for high seed oil content.The Chinese tallow oil can be used as a source of edible oil,industrial oil,and lubricant oil.After esterified,the fatty acids of Chinese tallow oil was determined by capillary column GC with 100 m×0.25 mm.The results indicated that the saturated fatty acid content was 10.68 %,the unsaturated fatty acid content was 89.13 %,containing single-unsaturated fatty acid 18.63 % and poly-unsaturated 70.50 %;Content of linoleate and linolenic acid necessary to body were highest 30.77 % and 39.30 % respectively.A good few odd number fatty acid unwonted in natural plant were found in Chinese tallow oil.There was no reported about lauroleic acid and undecanoicacid.

关 键 词：乌桕梓油 脂肪酸 化学组成 气相色谱 

分 类 号：O65[理学—分析化学]