从玉米炉中通过酶性水解优化-甲联合生产:过程强化,微生物群体动态和生命周期评估
Zheng Dong1, Shengxian Cao1, Bo Zhao1
1School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China.
Bioresource technology
|March 9, 2025
概括
通过在第11天添加废水 (HE) 来优化玉米炉的甲联合生产,显著提高了甲产量. 这一战略增强了挥发性脂肪酸和微生物活动,提供了可持续的生物能源解决方案.
科学领域:
- 生物技术和生物工程 生物技术和生物工程
- 可再生能源可再生能源是可再生能源.
- 微生物生态学 微生物生态学
背景情况:
- 玉米是一个丰富的纤维素生物质资源.
- 有效地将玉米转化为有价值的生物燃料,如和甲,对于可持续能源至关重要.
- 目前的联合生产方法需要优化,以提高产量和经济可行性.
研究的目的:
- 为了优化由酶化化玉米炉的甲联合生产.
- 调查定时加废水 (HE) 对甲产量和微生物群落动态的影响.
- 通过生命周期分析评估优化的联合制作过程的可持续性.
主要方法:
- 玉米的酶性水解,用于初始的生产.
- 盒子-Behnken设计,以优化联合生产参数 (炉度,高温度,高温添加时间).
- 气相色谱和挥发性脂肪酸分析以监测生产和微生物活动.
- 16S rRNA基因测序以分析微生物社区结构.
- 生命周期评估 (LCA) 用于评估环境影响.
主要成果:
- 酶性水解实现了总固体3.6 ± 3.2 mL/g的累积产量.
- 最佳的共同生产条件: 2.8%的酶化化炉,398mL/L的HE,并在第11天添加HE.
- 这些条件导致累计甲产量为490.8±20.0mL/g的挥发性固体,大幅增加.
- 添加HE增加了挥发性脂肪酸,刺激了蛋白质细菌,并平衡了关键的甲原体古生物 (甲类和甲类微生物).
- 与对照组相比,LCA显示能耗减少了25.0%,碳排放减少了7.4%.
结论:
- 定时的高温添加是一种有效的策略,可以在玉米炉联合生产期间提高甲产量.
- 优化过程改善了资源利用和微生物社区平衡.
- -甲联合生产系统提供了一种可持续且对环境有益的方法,用于从农业残留物中产生生物燃料.
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