在料批量反应器系统中Ulva的酸性发酵:管状与叶状生物质相比
James Lawrence1, Armando Oliva2, Jerry D Murphy3
1University of Galway, University Road, Galway H91 TK33, Ireland; Science Foundation Ireland MaREI Centre for Energy, Climate and Marine, Environmental Research Institute, University College Cork, Cork, Ireland.
Enzyme and microbial technology
|January 9, 2025
概括
这项研究探讨了Ulva大藻生物炼油厂,发现Ulva的存在可以增加叶状和管状类型的挥发性脂肪酸 (VFA). 管状乌尔瓦表现出对用于VFA生产的乌尔瓦提取的弹性,与叶片类型不同.
科学领域:
- 海洋生物技术 海洋生物技术
- 生物化学工程 生物化学工程
- 可再生能源可再生能源是可再生能源.
背景情况:
- 宏观藻类,特别是Ulva物种,为生物炼油厂提供了一个有希望的可持续原料.
- 了解不同形态 (叶状和管状) 和像乌尔万这样的组件的影响对于优化生物质价值化至关重要.
- 酸性发酵是将藻类生物质转化为挥发性脂肪酸 (VFA) 等有价值产品的关键过程.
研究的目的:
- 评估两种Ulva形态 (叶状和管状) 的酸性发酵,用于VFA生产.
- 为了研究乌尔瓦提取对VFA产量和乌尔瓦生物质中碳水化合物可用性的影响.
- 通过多种应用的级联方法突出Ulva的生物炼油潜力.
主要方法:
- 用于冷化乌尔瓦生物质的酸性发酵的Fed-batch反应器.
- 叶状和管状乌尔瓦在乌尔瓦提取之前和之后的形态的比较分析.
- 在发酵过程中监测挥发性脂肪酸 (VFA) 和碳水化合物度.
主要成果:
- 紫外线存在时,峰值VFA度更高:2179.5毫克HAc/L (叶粉) 和2029.3毫克HAc/L (管状).
- 乌尔瓦提取对叶状乌尔瓦发酵 (315.3 mg HAc/L) 有负面影响,但对管状乌尔瓦 (2165.0 mg HAc/L) 没有负面影响.
- 乌尔万提取的管状形态表现出碳水化合物度最高 (9.8克葡萄糖/升),其次是叶酸 (8.5克葡萄糖/升).
结论:
- 乌尔瓦生物质是生物提炼的可行资源,其形态对发酵过程的反应不同.
- 乌尔万的含量显著影响VFA的生产,管状形态表现出更大的稳定性后提取.
- 一种多步骤的生物炼油方法可以最大限度地从Ulva生物质中回收能量和生物分子.
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