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红素碳材料对Bacillus megaterium溶化性能的影响

Zhiyu Yang¹, Yihui Tian¹, Jianzhi Zhao¹

¹Department of Light Industry, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.

International journal of biological macromolecules

|December 20, 2024

概括

结合基于木质素的多孔碳 (LPC) 与Bacillus megaterium (BM) 增强了溶解和细菌活力. 这种生物炭微生物复合物为土壤整治和可持续农业提供了一种新的方法.

科学领域:

土壤科学土壤科学
环境微生物学环境微生物学
材料科学材料科学材料科学

背景情况:

由于化学肥料的二次盐化会降低土壤质量.
生物炭和微生物可以改善土壤特性,但生物炭类型会影响微生物的性能.
基于素的多孔碳 (LPC) 提供了潜在的微生物支持.

研究的目的:

开发和评估一种使用LPC和Bacillus megaterium (BM) 的复合剂,以提高溶解和微生物活力.
研究LPC表面功能群对BM生长和释放的影响.
探索工业素衍生生物炭在土壤修复方面的潜力.

主要方法:

低温碳化和激活红素以产生LPC.
在现场培养和Bacillus megaterium (BM) 在LPC上吸附,以创建BM-LPC.
量化可溶容量和BM吸附/生命能力随时间的推移.
在LPC上分析表面功能群 (-OH, -COOH, -NH2,CO).

主要成果:

该BM-LPC剂的最大可溶容量为744.29 mg/L,比单独BM增加了22%.
LPC有效地吸附了BM,最高达到3.66 × 10^9 CFU/g.
在150天后,BM-LPC保持了2.09 × 10^9 CFU/g的活性细菌数量.
LPC的功能组为BM提供了一个稳定的微环境,增强溶解和寿命.

结论:

开发的BM-LPC复合物显著改善了土壤中的可用性和细菌存活率.
来自工业质素的LPC是酸盐溶解细菌的有效载体.
这种方法为土壤整治和木质素废物的利用提供了一个可持续的途径.

关键词:

生物炭是一种生物炭.在Lignin的基础上.溶解细菌是一种溶解细菌.有孔的碳是多孔的碳.有活力的细菌数量.

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