摘要
以超临界CO2为溶剂提取天津冬菜中的呈色物质。选用L9(34)正交表,以萃取物A550吸光度平均值为指标,分别考察有无夹带剂存在时,温度、压力、CO2流量对萃取效率的影响。结果表明:压力与温度是萃取的主要影响因素;以水作为夹带剂可有效提高天津冬菜中呈色物质的萃取效率。
This paper is focused on extraction of present-color materials in Tianjin-DongCai by supercritical CO2. Afterorthogonal experiments L9(34), we studied the influences of cosolvent, temperature, pressure, flow rate of CO2 on extraction rateof present-color materials in Tianjin-DongCai, measuring by A550 of extraction. Results show that: pressure and temperature aremain influence factors in the process; and water as cosolvent can improve the efficiency of extraction of present-color materials.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2005年第z1期29-31,共3页
Food Science
基金
天津市科技攻关项目(20050708)
关键词
天津冬菜
超临界二氧化碳萃取
夹带剂(水)
呈色物质
Tianjin-DongCai
extraction by supercritical CO2
cosolvent (water)
present-color materials