微藻转化为生物能源:对Aurantiochytrium sp. 的优化 圣洁化 (Saccharification) 是一个神圣化过程
Joana Oliveira1,2, Sara Pardilhó2,3, Joana M Dias2,3
1Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal.
Biology
|July 29, 2023
概括
这项研究优化了微藻水解以生产生物乙醇. 热酸水解Aurantiochytrium sp.的热酸水解 使用响应表面方法实现了高糖产,确定了有效的糖化关键参数.
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.
- 生物化学工程 生物化学工程
背景情况:
- 微藻是生物乙醇的可持续原料,原因是它们的快速生长和缺乏红素.
- 水解对于从微藻中释放单糖来发酵至关重要.
- 优化水解条件对于从特定微藻菌株中有效生产生物乙醇至关重要.
研究的目的:
- 为了优化Aurantiochytrium sp.的热酸水解. 为了增强生物乙醇生产.
- 研究硫酸度,水解时间和生物质/酸比对糖度和生物质转化产量的影响.
- 开发一个预测模型,用于糖化条件.
主要方法:
- 利用响应表面方法 (RSM) 来优化热酸水解.
- 研究了硫酸度 (3.5%v/v),水解时间 (90分钟) 和生物质/酸比率 (15%w/v) 的影响.
- 在水解盐和生物质转换产量中分析了糖度.
主要成果:
- 在高模型准确度 (R2 = 0.990) 的情况下,达到18.05g/L的最大糖度.
- 确定了最大糖度的最佳条件:90分钟的水解,15%的生物质/酸比率和3.5%的硫酸.
- 在特定条件下 (9.3%的生物质/酸比率) 确定了12.86g/100g的最大转换产量.
- 生物质/酸比和时间被确定为分别对糖度和产量最有影响的参数.
结论:
- 开发了一种高度准确的微藻糖化预测模型.
- 建立了Aurantiochytrium sp.热酸水解的最佳条件.
- 这些发现为从微藻中有效生产生物乙醇提供了基础.
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