食品科学 ›› 2004, Vol. 25 ›› Issue (5): 109-112.

• 工艺技术 • 上一篇    下一篇

固氮菌β-C1株类胡萝卜素分离提取工艺优化的研究

 杨秋明, 倪辉, 杨远帆   

  1. 集美大学生物工程学院
  • 出版日期:2004-05-15 发布日期:2011-10-24

Study on Optimization of the Working Conditions for Extracting Carotenoids from Azotobacter-strain β-C1

 YANG  Qiu-Ming, NI  Hui, YANG  Yuan-Fan   

  1. Institute of Biotechnology, JiMei University
  • Online:2004-05-15 Published:2011-10-24

摘要: 本文主要报导了破壁方法、浸提溶剂和工艺条件对从固氮菌β-C1菌株中提取类胡萝卜素影响的实验结果。用酸热法对β-C1菌株进行破壁处理最有利类胡萝卜提取,用正交实验法得出的最佳破壁工艺为:盐酸的浓度3mol/L,盐酸的加量30ml/g,破壁时间2min,破壁温度100℃。氯仿、丙酮、甲醇及乙醇等多种溶剂能取得良好的提取效果,但综合考虑,乙醇最理想;用正交实验优化乙醇浸取的最佳条件为:乙醇加量30ml/g菌体,浸提温度为50℃,浸提时间45min,在优化后的条件下进行破壁提取β-C1菌中的类胡萝卜素,提取得率为3.45mg/g(干菌体)。

关键词: 固氮菌&beta, -C1菌株, 类胡萝卜素, 提取, 优化

Abstract: The cell-disrupting methods, solvent extracting and working conditions for extracting carotenoids form theAzotobacter strainβ-C1 were studied. The method of hot hydrochloric acid was the best to bread the cell wall, and the optimalconditions obtained by orthogonal experiment were: concentration of HCl 3mol/L, HCl addition 30ml/g(dry cell), temperature100℃ and time 2min .Ethanol was the suitable solvent as far as the toxin problem and application convenience were concerned.Besides the optimal conditions were: alcohol addition 30ml/g (dry cell), extracting temperature 50℃ and extracting time 45min.Under the optimal conditions for disrupting cell and extracting carotenoids, the extraction rate was 3.45mg/g.

Key words: Azotobacter strainβ-C1, carotenoids, extraction, optimization