Abstract

Lipopeptides possess excellent broad spectrum antimicrobial activity. Different lipopeptides have their own unique chemical structures, properties and biological activities. Quantitative analysis of the lipopeptides iturin and surfactin and their homologues produced by Bacillus natto NT–6 subjected to different culture media, shaking speed of rotary shaker, and liquid and solid fermentation methods was conducted using LC–MS. For iturins, liquid-state fermentation in Landy medium at a shaking speed of 160 r min−1 was the most suitable for maximal homologue production. Addition of 0.4% attapulgite powder increased production by 1.92-fold; activated carbon significantly reduced production. For surfactin homologues, solid-state fermentation in potato dextrose broth medium at shaking speed > 160 r min−1 was the best. Addition of 0.4% attapulgite powder increased production by 1.96-fold; activated carbon had no effect. Thus it is clear that fermentation conditions can be manipulated to maximize iturin and surfactin production.

Details

Title
Effect of media and fermentation conditions on surfactin and iturin homologues produced by Bacillus natto NT-6: LC–MS analysis
Author
Sun, Dongfang 1 ; Liao, Jianmeng 2 ; Sun, Lijun 1 ; Wang, Yaling 1 ; Liu, Ying 1 ; Deng, Qi 1 ; Zhang, Ning 1 ; Xu, Defeng 1 ; Fang, Zhijia 1 ; Wang, Wenjing 1 ; Gooneratne, Ravi 3 

 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, Guangdong Province, China 
 National Marine Products Quality Supervision & Inspection Center, Zhanjiang, China 
 Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture & Life Sciences, Lincoln University, Lincoln, Canterbury, New Zealand 
Pages
1-9
Publication year
2019
Publication date
Jul 2019
Publisher
Springer Nature B.V.
e-ISSN
21910855
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2264890742
Copyright
AMB Express is a copyright of Springer, (2019). All Rights Reserved., © 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.