食品科学 ›› 2004, Vol. 25 ›› Issue (2): 161-163.

• 分析检测 • 上一篇    下一篇

HPLC法检测红茶菌中葡萄糖代谢曲线及培养基的优化研究

 田文礼, 籍保平, 李博, 张泓   

  1. 中国农业大学食品科学与营养工程学院
  • 出版日期:2004-02-15 发布日期:2011-10-24

Determination of the Curve of Glucose Consumption of Kombucha by HPLC and Optimization of Culture Medium

 TIAN  Wen-Li, JI  Bao-Ping, LI  Bo, ZHANG  Hong   

  1. College of Food Science and Nutritional Engineering, China Agricultural University
  • Online:2004-02-15 Published:2011-10-24

摘要: 本实验室从红茶菌中分离出可以产生高含量的功能因子—葡萄糖二酸1,4内酯的菌株——葡糖酸醋酸杆菌(Gluconacetobactersp.A22)。本文利用高效液相色谱法检测葡萄糖,通过对葡萄糖代谢曲线的测定,确定了发酵时间为126h(30℃,160r/min振荡培养)。发酵结束时,残糖量与初始葡萄糖浓度呈线性关系:y=40.254x-35.862(R2=0.9999)。对A22培养基的优化进行了研究,结果表明,葡萄糖浓度5%(w/v)、茶叶浓度0.5%(w/v)时最适合A22发酵生产功能性饮料。

关键词: 红茶菌, 葡糖酸醋酸杆菌, HPLC, 培养基优化, 葡萄糖代谢曲线

Abstract: Gluconacetobacter sp. A22 was isolated from the symbiotic culture of Kombucha made in the lab. It could produceplenty of d-Saccharich acid 1,4 lactone. Glucose was determined with HPLC.The fermentation period was confirmed for 126hby the cure of glucose consumption (The flasks were incubated at 30℃ and agitated at 160r/min). At the end of fermentation, theconcentration of residual glucose was linear with initial concentration of glucose:y=40.254x-35.862 (R2=0.9999).Theoptimal medium was glucose 5% (w/v) and black tea 0.5% (w/v) for functional beverage.

Key words: kombucha, Gluconacetobacter sp., HPLC, optimization of culture medium, the curve of glucose consumption