Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/145249
Title: Effect of NaCl concentration on microbiological properties in NaCl assistant anaerobic fermentation : hydrolase activity and microbial community distribution
Authors: Pang, Heliang
Xin, Xiaodong
He, Junguo
Cui, Baihui
Guo, Dabin
Liu, Shiming
Yan, Zhongsen
Liu, Chong
Wang, Xinyu
Nan, Jun
Keywords: Science::Biological sciences
Issue Date: 2020
Source: Pang, H., Xin, X., He, J., Cui, B., Guo, D., Liu, S., . . . Nan, J. (2020). Effect of NaCl concentration on microbiological properties in NaCl assistant anaerobic fermentation : hydrolase activity and microbial community distribution. Frontiers in Microbiology, 11, 589222-. doi:10.3389/fmicb.2020.589222
Journal: Frontiers in Microbiology 
Abstract: Previous studies have demonstrated that sludge hydrolysis and short-chain fatty acids (SCFAs) production were improved through NaCl assistant anaerobic fermentation. However, the effect of NaCl concentrations on hydrolase activity and microbial community structure was rarely reported. In this study, it was found that α-glucosidase activity and some carbohydrate-degrading bacteria were inhibited in NaCl tests, owing to their vulnerability to high NaCl concentration. Correspondingly, the microbial community richness and diversity were reduced compared with the control test, while the evenness was not affected by NaCl concentration. By contrast, the protease activity was increased in the presence of NaCl and reached the highest activity at the NaCl concentration of 20 g/L. The protein-degrading and SCFAs-producing bacteria (e.g., Clostridium algidicarnis and Proteiniclasticum) were enriched in the presence of NaCl, which were salt-tolerant.
URI: https://hdl.handle.net/10356/145249
ISSN: 1664-302X
DOI: 10.3389/fmicb.2020.589222
Rights: © 2020 Pang, Xin, He, Cui, Guo, Liu, Yan, Liu, Wang and Nan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:NEWRI Journal Articles

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