食品科学 ›› 2008, Vol. 29 ›› Issue (12): 316-319.

• 工艺技术 • 上一篇    下一篇

多元线性回归设计优化微波辅助提取啤酒废酵母细胞RNA

 魏巍, 刘静波, 林松毅, 李海霞, 杨渝军   

  1. 吉林大学军需科技学院营养与功能食品研究室;
  • 出版日期:2008-12-15 发布日期:2011-12-08

Optimization of Microwave-assisted Extraction of RNA from Waste Beer Yeast Cell Based on Design of Multiple Linear Regression

 WEI  Wei, LIU  Jing-Bo, LIN  Song-Yi, LI  Hai-Xia, YANG  Yu-Jun   

  1. Laboratory of Nutrition and Functional Food,College of Quartermaster Technology,Jilin University,Changchun 130062,China
  • Online:2008-12-15 Published:2011-12-08

摘要: 为了开发利用啤酒在发酵过程产生的废酵母细胞,本实验以啤酒废酵母泥为原料,以酵母细胞中的核酸为研究对象,通过微波加热提取核酸的方法提取啤酒废酵母细胞中的核酸,探讨了微波功率、微波温度、微波时间、料液比、提取时间、提取温度等因素对产品提取率的影响,从而获得最佳提取条件。通过多元线性回归试验,结果表明最佳工艺参数为:微波功率700W、微波时间4min、浸提时间3.5h、浸提温度100℃,测得总核酸含量为10.920μg/ml。微波法与传统提取核酸的方法相比具有提取时间短、效率高等特点,大大降低了能量消耗,可应用于工业化大生产。

关键词: 微波, 啤酒酵母, 核酸, 多元线性回归

Abstract: In order to develop and utilize waste beer yeast,this experiment was design to extract nucleic acid from waste beer yeast through microwave heating method. Effects of microwave power,microwave temperature,microwave treatment time,material to liquid ratio,extraction time,extraction temperature on extraction rate of nucleic acid were investigated. Through multiple linear regression test,the main extraction conditions were determined as follows:microwave power 700 W,microwave time 4 min,extraction time 3.5 h,and extraction temperature 100 ℃. The total acid content of obtained sample is 10.920 μg/ml. Compared with the traditional method,the microwave method is of shorter extraction time,higher efficiency and lower energy consumption,and can be applied in the industrial production.

Key words: microwave, beer yeast, nuckeic acid, multiple linear regression