两个新品种鸡冠花籽油脂肪酸组分的分离鉴定

Separation and Identification of Fatty Acid in the Seed Oils of Two New Species of Celosia Cristata L.

采用有机溶剂抽提了两个新品种鸡冠花 (CelosiacristataL )籽油 ,使用气相色谱法 (GC)分析鉴定了其油脂的脂肪酸组分。 2种籽油均含有 10种脂肪酸 ,包括 4种微量脂肪酸。鉴定出其中奇数碳原子脂肪酸C15:0 ,C17:1的存在。 2种籽油主要脂肪酸组分 (% )分别为 :棕榈酸 2 0 6 1,2 3 5 0 ;硬脂酸 1 87,2 39;油酸 2 0 77,19 93;亚油酸 5 1 39,45 99;亚麻酸 1 5 4,1 86 ;花生四烯酸 3 2 0 ,3 42。

The seed oils of two new species of Celosia cristata L , C argentea L var crispa Kuntze (Yellow flower) and C cristata L cv Spicata (Red flower), were extracted with organic solvent and the fatty acids (FAs) in seed oils were separated and identificated by gas chromatography (GC) They all contained 10 kinds of FA including 4 trace FAs, respectively Two new FAs of odd number of carbons in the seed oils, pentadecanoic acid (C 15:0 ) and heptadecenoic acid (C 17:1 ), were found The compositions of main FAs in the seed oils were palmitic 20 61%, 23 50%; stearic 1 87%; 2 39%; oleic 20 77%, 19 93%; linoleic 51 39%, 45 99%; linolenic 1 54%, 1 86% and arachidonic 3 20%, 3 42%, respectively