摘要
利用DPS系统建立均匀设计试验方案,对单频超声、双频组合超声和双频复合超声浸取绿茶茶多酚的浓度、浸取率、浸取速度进行了比较研究,利用偏最小二乘法处理试验数据,并建立浸取数学模型和确定最佳浸取条件。研究发现双频复合超声浸取绿茶茶多酚,在茶多酚的浓度、浸取率和浸取速率三个方面都比单频超声浸取有明显优势。
Extracting PPT from green tea under single-frequency and dual-frequency ultrasounic field were studied, and theexperiment plan was done according to uniform design by DPS, or mathematical model and the optimize process condition wereobtained with PLS procedure. The result showed that the dual-frequency ultrasound technology is superior to single-frequencytechnology in PPT extraction about concentration, extract content and extraction velocity.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2004年第10期139-144,共6页
Food Science
基金
北京市优秀人才资助项目
关键词
绿茶茶多酚
浸取
双频超声
均匀设计
数学模犁
PPT of green tea
extraction
dual-frequency ultrasound
uniform design
mathematical model
