期刊论文、会议论文

Wu, Z.-H.(wzhua2889@163.com)

中文

林产化学与工业

0253-2417

2013

33

2

113-118

第十届中国林业青年学术论坛

第十届中国林业青年学术论坛论文集

2012-09-01

南京

中国林学会

10.3969/j.issn.0253-2417.2013.02.020

广东省自然科学基金项目（9145624536-4000003） 湛江市财政资金科技专项竞争性分配项目（20102030244） 林业重大公益性行业科研专项（201104003）

本校为第一机构

用不同的溶剂、物料粒度、料液比、浸泡时间及萃取时间对桉叶不饱和脂肪酸进行提取的正交试验,筛选出最优的提取方案并对提取物甲酯化处理后通过GC-MS分析其成分。在进行了L_(16)(4~5)正交试验之后,研究得到当溶剂为丙酮、物料粒度为0.075~0.15mm、料液比为1∶15(g∶mL)、浸泡时间为8h及超声波处理1.5h时提取得率为14.9%,GC-MS分析,鉴定出6个化合物,其中有5个脂肪酸类化合物,如不饱和脂肪酸亚油酸和亚麻酸,10g桉叶中含有36.01 mg不饱和脂肪酸。桉叶中含有重要的不饱和脂肪酸,具有开发利用价值。

The optimal extraction process of unsaturated fatty acids from Eucalyptus leaves was obtained by orthogonal test based on factors such as different solvents, material particle size, solid-liquid ratio, immersion time and extraction time. The components of extracts were analysed by GC-MS after methylation. The results from 16 tests of 5 factors and 4 levels showed that the extraction yield was 14.9% on the optimal extraction conditions, i.e., acetone as solvent, material particle size 0.075-0.150 mm, solid-liquid ratio 1:15 (g:mL), immersion time 8 h and extraction time 1.5 h. Six compounds inc...