Study on enhancing antibacteial activity of Lactobacillus plantarum fmb10 through composite mutagenesis

Authors

CHEN Yunyun, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou, Fujian 363000, China
LU Zhaoxin, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210000, China
DANG Lijuan, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210000, China
GAO Yuqi, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210000, China

Abstract

Induced mutation of Lactobacillus plantarum fmb10 divided from pineapple was performed by Co⁶⁰γ, low-energy N⁺ beam irradiation, DES, EMS and composite mutagenesis, respectively, to enhance the antibacterial activity. The results showed that Lactobacillus plantarum fmb10 was sensitive to low-energy N+ beam and EMS irradiation, and a high-activity strain fmb10-Z with stable inheritance and forward mutation was obtained after the treatment of EMS-low-energy N⁺ beam composite mutagenesis. The bacteriostatic diameter against E.coli was increased by 23%, and the antibacterial activity of the mutant fmb10-Z was increased 1.5 times compared with original strain.

Publication Date

5-28-2016

First Page

58

Last Page

62

DOI

10.13652/j.issn.1003-5788.2016.05.013

Recommended Citation

Yunyun, CHEN; Zhaoxin, LU; Lijuan, DANG; and Yuqi, GAO (2016) "Study on enhancing antibacteial activity of Lactobacillus plantarum fmb10 through composite mutagenesis," Food and Machinery: Vol. 32: Iss. 5, Article 13.
DOI: 10.13652/j.issn.1003-5788.2016.05.013
Available at: https://www.ifoodmm.cn/journal/vol32/iss5/13

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