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Updated: Jul 27, 2025

Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production

Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production

Published on: June 15, 2014

综合乳酸生产从热条件下的农业灰纤维素废弃物

Ya-Jun Liu¹, Yuedong Zhang¹, Fang Chi¹

¹CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China; Shandong Energy Institute, Qingdao, China; Qingdao New Energy Shandong Laboratory, Qingdao, China; Dalian National Laboratory for Clean Energy, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China.

Journal of environmental management

|June 8, 2023

概括

这项研究开发了一种单发酵工艺,使用Geobacillus stearothermophilus 2H-3从农业废物中生产乳酸 (LA). 这种可持续的方法有效地将纤维素生物质转化为高纯度的LA.

科学领域:

生物技术和工业微生物学
可持续化学可持续化学
生物精炼是生物精炼的方法之一.

背景情况:

对可生物降解的聚乳酸 (PLA) 的需求不断增长,需要可持续的生产方法.
农业废弃物为生物加工提供了丰富的基纤维素原料.

研究的目的:

开发一个高效的,综合的过程,以生产乳酸 (LA) 从农业灰纤维素废物.
为了利用热友菌株,Geobacillus stearothermophilus 2H-3,进行强大的LA生物合成.

主要方法:

隔离和表征的地球菌热 2H-3.
开发一个一个的连续发酵,整合全细胞合并生物糖化 (CBS) 和直接发酵.
来自玉米,玉米残留物和小麦的CBS水解剂的发酵.

主要成果:

在60°C和pH值6.5.5确定了最佳发酵条件.
成功地将G. stearothermophilus 2H-3直接注射到非消毒的CBS水解剂中.
获得高光学纯度 (99.5%),标位 (51.36 g/L) 和产量 (0.74 g/g生物质) 的L-(+) LA.

结论:

集成的CBS和G. stearothermophilus 2H-3发酵为可持续的LA生产提供了一个有希望的战略.
单工艺通过消除中间灭菌和调整来简化操作.
这种方法有效地将农业废物转化为高价值的乳酸.

关键词:

克洛斯特里热细胞 (Clostridium thermocellum) 是一种热细胞.巩固的生物糖化.基奥巴西勒斯 (Geobacillus stearothermophilus) 是一种植物.红细胞纤维素酸 (Lignocellulose) 是一种纤维素.这就是为什么PLA PLA PLA.

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