摘要
研究了栀子萃取的最佳工艺条件及其挥发油中的化学成分。以L9(34)正交设计对超临界萃取条件进行优化,GC-MS联用技术对挥发性成分进行定性及半定量分析。结果显示:55℃,35MPa,120 min的萃取条件下挥发性成分的收率最高,超临界萃取产物的主要成分为亚油酸,棕榈酸,反,反-2,4-癸二烯醛,而传统水蒸汽蒸馏工艺下主要成分为反,反-2,4-癸二烯醛。与水蒸汽蒸馏工艺相比较,超临界流体萃取工艺具有萃取率高,生产周期短的优点。
To study the optimum parameters and components on volatile oil from Gardenia jasminoides Ellis. The supercritical fluid extraction for the volatile oils in Gardenia jasminoides Ellis were studied by orthogonal test, and the analysis of the volatile compounds obtained from the SFE oil and the steam-distilled oil by the gas chromatography-mass spectrometry method was done. The SFE oils consist of linoleic acid, palmitic acid and trans,trans-2,4-decadienal, but the main content of the SD oils was trans,trans-2,4-decadienal. The optimum conditions were found： extraction temperature 55 ℃, extraction pressure 35 MPa, extraction time 120 minutes. Compared with that of steam distillation, a high extraction yield and short processing period was achieved by using supercritical carbon dioxide extraction.
出处
《食品与生物技术学报》
CAS
CSCD
北大核心
2006年第6期87-92,共6页
Journal of Food Science and Biotechnology
基金
无锡市"十五"科技计划项目(CG20010006)
关键词
栀子
挥发性成分
超临界流体萃取
水蒸汽蒸馏
Gardenia jasminoides Ellis
volatile compounds
supercritical fluid extraction
steam distillation
