生物技术通报 ›› 2015, Vol. 31 ›› Issue (3): 161-164.doi: 10.13560/j.cnki.biotech.bull.1985.2015.04.023

• 研究报告 • 上一篇    下一篇

纳豆激酶生产菌的筛选及发酵纳豆特性研究

赵仲麟1, 李淑英2, 聂莹2, 李燕3, 袁超1, 唐选明2   

  1. (1. 河南农业大学理学院,郑州 450002;2. 中国农业科学院农产品加工研究所,北京 100193;3.郑州轻工业学院食品与生物工程学院,郑州 450002)
  • 收稿日期:2014-09-05 出版日期:2015-03-16 发布日期:2015-03-16
  • 作者简介:赵仲麟,男,博士,副教授,研究方向:化学生物学、环境微生物;E-mail:rayzzl@163.com
  • 基金资助:
    中国农业科学院科技经费项目(201211),公益性行业(农业)科研专项经费项目(201303080)

Screening of Nattokinase Producing Strain and Characterazation of Nattokinase

Zhao Zhonglin1 Li Shuying2 Nie Ying2 Li Yan3 Yuan Chao1 Tang Xuanming2   

  1. (1. College of Sciences,Henan Agricultural University,Zhengzhou 450002;2. Institute of Agro-products Processing Science and Technology,Chinese Academy of Agricultural Sciences,Beijing 100193;3. School of Food and Biological Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002)
  • Received:2014-09-05 Published:2015-03-16 Online:2015-03-16

摘要: 为开发具有特定生理活性的新型纳豆保健品,从发酵豆制品中分离筛选得到一株纳豆激酶高产菌株。利用该菌株以及市售的3种纳豆中的纳豆菌进行纳豆发酵,比较了4株纳豆菌发酵纳豆的特性,并对纳豆激酶活性进行分析。结果表明5号菌株发酵生产纳豆周期短,颜色金黄,具有酱香味,拉丝长度最佳。同时,对产纳豆激酶的最佳发酵时间进行研究,结果表明发酵至17 h纳豆激酶活性达到最大值。

关键词: 纳豆激酶, 筛选, 酶活, 特性

Abstract: To develop new kinds of natto health care products with specific physiological activity, a nattokinase high-yield strain was isolated and used for natto production. The characteristics and nattokinase activities of the isolated strain were compared with other 3 kinds of natto strains. Results showed that the natto products of munber 5 strain have golden color and soy sauce flavor, and have the best length of natto wire drawing. The result of fermentation time showed that nattokinase content reached the maximum value at 17 h.

Key words: nattokinase, screen, enzyme activity, characteristic