使用红色大藻Gelidium amansii的第三代D-乳酸生产,通过共同发酵银河糖,葡萄糖和西洛糖
Zhongyang Qiu1, Guangli Wang1, Wenjun Shao1
1Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu, China.
Bioresource technology
|March 30, 2024
概括
红色的大藻Gelidium amansii可以使用Pediococcus acidilactici生产D-乳酸. 这项研究实现了从大藻生物质中获得D-乳酸的创纪录产量.
科学领域:
- 生物技术是生物技术.
- 可再生能源可再生能源是可再生能源.
- 生物精炼是生物精炼的一种方式.
背景情况:
- 大藻生物质是可再生化学生产的有希望的无素原料.
- 高碳水化合物含量和生产力使大藻类适合发酵.
研究的目的:
- 研究使用Pediococcus acidilactici.使用红色大藻Gelidium amansii的D-乳酸生产.
- 确定P. acidilactici在来自G. amansii的混合糖上的发酵能力.
- 优化同时糖化和共发酵 (SSCF) 以提高D-乳酸产量.
主要方法:
- 在G. amansii的酸性预水解中获得可发酵糖 (银糖,葡萄糖,糖).
- 混合糖的发酵由P. acidilactici,分析糖的同化和D-乳酸的生产.
- 全基因组测序以提出糖类同化途径.
- 同时糖化和共发酵 (SSCF) 的预处理和生物解毒的G. amansii.
主要成果:
- P. acidilactici 在没有碳催化体抑制 (CCR) 的情况下,证明了银河糖,葡萄糖和树脂糖的同时发酵.
- 从混合糖中获得0.90g/g的高D-乳酸产量.
- G. amansii的SSCF导致了创纪录的D-乳酸度为41.4g/L,产量为0.34g/g的干原料.
结论:
- Pediococcus acidilactici是一种有效的微生物,可以从大藻中产生D-乳酸.
- 大藻生物质,特别是G. amansii,是可持续D-乳酸制造的可行原料.
- 该研究确定了一种关键的生物炼油菌株和工艺,用于基于大藻的D-乳酸生产.
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