摘要
建立了搅拌棒吸附萃取-热脱附/气相色谱-质谱法分析可可提取物挥发性成分的方法,其中,PDMS型搅拌磁子检出72个化合物,峰面积相对百分比大于1%的化合物有:异戊酸(25.28%)、异戊醛丙二醇缩醛(14.57%)、乙酸苄酯(10.60%)、1,2-丙二醇(9.17%)、苯乙醇(9.00%)、二苯丙酮(5.00%)、苯乙酸苯乙酯(4.50%)、异戊酸异戊酯(3.63%)、2,3,5-三甲基吡嗪(2.34%)、2-甲氧基-3-甲基吡嗪(2.29%)、可可醛(1.53%)、亚油酸乙酯(1.25%)和乙酸(1.10%),EG-Silicone型磁子检出57个化合物,峰面积相对百分比大于1%的化合物有:2,3,5-三甲基吡嗪(63.59%)、乙酸(12.06%)、异戊醛丙二醇缩醛(4.96%)、乙酸苄酯(3.92%)、棕榈酸(1.89%)、愈创木酚(1.41%)、异戊酸(1.08%)、二苯丙酮(1.08%)和甘油(1.01%),并对致香机理进行了探讨。研究结果为可可提取物的开发、调香应用和质量监控提供了依据。
The volatile constituents of Cocoa extract were identified by using stir bar sorptive extraction-thermal desorption/gas chromatography-mass spectrometry(SBSE-TDU/GC-MS).With the MS library search and retention index comparison,73 compounds were confirmed with PDMS twister,and the main constituents included isovaleric acid(25.28%),isovaleraldehyde propylene glycol acetal(14.57%),benzyl acetate(10.60%),1,2-propylene glycol(9.17%),phenethyl alcohol(9.00%),dibenzyl ketone(5.00%),phenethyl phenylacetate(4.50%),isoamyl isovalerate(3.63%),2,3,5-trimethylpyrazine(2.34%),2-methoxy-3-methyl pyrazine(2.29%),2-isopropyl-5-methyl-2-hexenal(1.53%),ethyl linoleate(1.25%) and acetic acid(1.10%),while with EG-silicone twister,59 chemicals were determined,which included the following main compounds: 2,3,5-trimethylpyrazin(63.59%),acetic acid(12.06%),isovaleraldehyde propylene glycol acetal(4.96%),benzyl acetate(3.92%),palmitic acid(1.89%),guaiacol(1.41%),isovaleric acid(1.08%),dibenzyl ketone(1.08%)and glycerine(1.01%).The research provided technological supports for exploitation and quality control of cocoa extract.
出处
《香料香精化妆品》
CAS
2012年第6期5-9,13,共6页
Flavour Fragrance Cosmetics
基金
国家烟草专卖局增香保润重大专项资金资助项目(No.110200902020)