摘要
利用索氏抽提法提取并采用气相色谱法测定了大戟属能源植物续随子的江苏野生近缘种甘肃大戟、乳浆大戟和钩腺大戟不同组织总脂含量、种子中总脂的脂肪酸组成及GC含量。结果表明,其茎、叶、种皮、种子及块根中,种子的总脂含量最高,在3个物种中分别为37.29%、24.50%和24.85%,其次是叶和茎,种皮含量最小;甘肃大戟种子的总脂含量高达37.29%,具有较好的开发潜力;3种植物种子总脂的脂肪酸组成中二十碳以下(多数为十八碳)的脂肪酸总和均为90%以上,甘肃大戟种子的总脂中二十碳以下的脂肪酸的总和甚至超过99%,在碳链长度上与理想的生物柴油组分接近,但3种大戟种子的总脂中亚麻酸比例在53%以上,生产出的生物柴油稳定性较差。
Total lipid contents in different tissues from three Euphorbia lathyris L. related species including E. kansuensis Prokh. , E. esula L. and E. sieboldiana Morr. ＆ Decne. were determined by Soxhlet extraction method. Relative contents and composition of fatty acids in their seed oils were analyzed by gas chromatography. The results showed that total lipid contents were highest in the seeds of these three species （37.29 % , 24.50 % and 24.85 % , respectively） , lower in leaves and stems, and lowest in seed shell. E. kansuensis had good potential for development as its high seed oil content of 37.29 %. Total contents of fatty acids （ 〈20 carbon atoms, mainly C18-fatty acids） in their seed oils were over 90 %, and even over 99 % in E. kansuensis. The car- bon chain length of the fatty acids was quite similar with that of the ideal biodiesel, but linolenic acid content was above 53 % of total lipid, which would result it in reduced stability of the produced biodiesel.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2009年第4期63-66,共4页
Chemistry and Industry of Forest Products
基金
江苏省农业科技支撑重点项目(BE2008328)
江苏省中科院植物研究所青年基金项目(无编号)
关键词
甘肃大戟
乳浆大戟
钩腺大戟
总脂含量
脂肪酸
Euphorbia kansuensis Prokh.
E. esula L.
E. sieboldiana Mort. ＆ Decne.
total lipid contents
fatty acid
