摘要
以南药琼榄果实为原料,采用微波辅助提取法(MAE)和超临界CO2提取法(SFE-CO2)提取琼榄果实油,并用气-质联用仪(GC-MS)比较了琼榄油经碱催化和BF3-MeOH催化甲酯化后的脂肪酸成分及其相对质量分数。结果表明,两种方法所提取琼榄油的脂肪酸成分大致相同。GC-MS分析MAE(碱催化法)、SFE-CO2(碱催化法)、MAE(BF3-MeOH催化法)、SFE-CO2(BF3-MeOH催化法)这4种方法所得的琼榄果实油,其中相对质量分数最高的是十八碳烯酸(69.44%、69.04%、64.92%、64.69%),次之为棕榈酸(20.82%、21.01%、21.45%、21.70%),再次是亚油酸(6.33%、6.03%、6.33%、6.13%)。不饱和脂肪酸占脂肪酸总量分别高达76.75%、75.91%、74.77%、74.30%。
With Gonocaryum lobbianum （Merr.） Kurz fruits as the raw material, Gonocaryum lobbianum （Merr.） Kurz fruit oils were extracted by microwave-assisted extraction and supercritical CO2 fluid extraction. The chemical composition and relative content of each fatty acid of the oils after methyl esterification using alkali catalyst and BF3-MeOH catalyst were identified by GC-MS. There was no significant difference in terms of the chemical composition of the oils with these two extractions. In the fruit oils obtained by the four methyl esterification methods, i. e. MAE （alkali catalyst）, SFE-CO2 （alkali catalyst）, MAE（ BFa-MeOH catalyst）, and SFE-CO2 （BFa-MeOH catalyst）, the fatty acid with the highest relative content was octadecenoic acid （ 69.44%, 69.04%, 64.92%, 64.69% ）, followed by hexadecanoic acid （ 20. 82% , 21.01% , 21.45% , 21.70% ） , and then octadecadienoic acid （6. 33%, 6.03%, 6.33%, 6. 13% ）. The total content of unsaturated fatty acids was 76. 75% 75.91% ,74. 77% and 74. 30% respectively.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2012年第7期660-664,共5页
Fine Chemicals
基金
国家高新技术研究发展计划(863计划)项目(2007AA021500)~~
关键词
微波辅助提取
超临界CO2提取
琼榄果实油
化学成分
中药现代化技术
microwave-assisted extraction
supercritical CO2 extraction
Gonocaryum lobbianum（Merr.） Kurz fruit oil
chemical composition
modernization technology of traditional Chinesemedicines
