Enhanced lignin degradation of paddy straw and pine needle biomass by combinatorial approach of chemical treatment and fungal enzymes for pulp making

被引：14

作者：

Gupta, Akansha ^{[1
]}

Tiwari, Abhay ^{[1
]}

Ghosh, Pooja ^{[1
]}

Arora, Kalpana ^{[2
]}

Sharma, Satyawati ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Ctr Rural Dev & Technol, New Delhi 110016, India

[2] Soc Econ & Social Sci, Ctr Technol, Bangalore, India

来源：

BIORESOURCE TECHNOLOGY | 2023年 / 368卷

关键词：

Paddy straw; Pine needles; Pulping; Lignin degradation; Lignin modifying enzymes; ENZYMATIC-HYDROLYSIS; PRETREATMENT; BIODEGRADATION; HYDROXIDE; STATE;

D O I：

10.1016/j.biortech.2022.128314

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Paddy straw (PS) and pine needles (PN) are one of the challenging biomasses in terms of disposal and compost making due to their high silica and tannin contents. Particulate air pollution, loss of biodiversity and respiratory impairments are some of disastrous outcomes caused by burning. However, high percentage of cellulose and hemicellulose makes them potential substrate for paper and pulp industries. The main aim of work was to study and utilize a combinatorial approach of weak chemical treatment and lignin degrading fungal species as agents of effective production of lignin modifying enzymes (LME's) for lignin depolymerisation from the biomasses. Phanerochaete chrysosporium was found to be the best degrader of lignin (47.11 % in PS + PN in 28 days) with maximum LME's production between 10th-17th days. Efficient lignin degradation in the PS and PN biomass will aid further application in pulp production supporting the transition to a circular economy in a greener way.

引用

页数：9