| 绿茶茶多酚的双频超声浸取研究 |
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| 引用本文： | 曹雁平,李建宇,朱桂清,刘佐才.绿茶茶多酚的双频超声浸取研究[J].食品科学,2004,25(10):139-144. |
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| 作者姓名： | 曹雁平 李建宇 朱桂清 刘佐才 |
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| 作者单位： | 1. 北京工商大学化学与环境工程学院,北京,100037
2. 北京理工大学理学院,北京,100081 |
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| 基金项目： | 北京市优秀人才资助项目 |
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| 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。
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| 关 键 词： | 绿茶茶多酚 浸取 双频超声 均匀设计 数学模犁 |
| 文章编号： | 1002-6630(2004)10-0139-06 |
Study on Extracting PPT from Green Tea by Dual-frequency Ultrasound Technology |
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| CAO Yan-ping,LI Jian-yu,ZHU Gui-qing,LIU Zuo-cai.Study on Extracting PPT from Green Tea by Dual-frequency Ultrasound Technology[J].Food Science,2004,25(10):139-144. |
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| Authors: | CAO Yan-ping LI Jian-yu ZHU Gui-qing LIU Zuo-cai |
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| Affiliation: | CAO Yan-ping1,LI Jian-yu1,ZHU Gui-qing1,LIU Zuo-cai2 |
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| Abstract: | 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. |
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| Keywords: | PPT of green tea extraction dual-frequency ultrasound uniform design mathematical model |
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