Kraft lignin biodegradation by Novosphingobium sp. B-7 and analysis of the degradation process

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- 바이오플라스틱
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  2. 플라스틱
  3. 기타
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논문

Kraft lignin biodegradation by Novosphingobium sp. B-7 and analysis of the degradation process

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Chen, Y.; Chai, L.; Tang, C.; Yang, Z.; Zheng, Y.; Shi, Y.; Zhang, H.

초록

This study focused on the biodegradation of kraft lignin (KL) by Novosphingobium sp. B-7 using KL as sole carbon source. Results revealed that Novosphingobium sp. B-7 reduced the chemical oxygen demand (COD) by 34.7% in KL mineral salt medium after 7days of incubation. Additionally, the maximum activities of manganese peroxidase (MnP) of 3229.8Ul<SUP>-1</SUP> and laccase (Lac) of 1275Ul<SUP>-1</SUP> were observed at 4th and 5th day, respectively. GC-MS analysis indicated that after incubated with Novosphingobium sp. B-7, low molecular weight alcohols and lignin-related monomer compounds such as ethanediol, p-hydroxy benzoic acid and vanillic acid were formed in the system, which strongly confirmed the degradation of KL by Novosphingobium sp. B-7.

발행연도

2012

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

123

페이지

pp.682-685

DOI

10.1016/j.biortech.2012.07.028