在接近海水的度条件下,从奶酪乳清中生产的多基酸盐
Matteo Grana1, Bruno C Marreiros2, Mónica Carvalheira2
1Dipartimento di Ingegneria Civile e Ambientale, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
New biotechnology
|September 26, 2024
概括
这项研究利用混合微生物培养 (MMC) 在盐水条件下将发酵奶酪乳清提升为多基酸盐 (PHA). 海水可用于PHA生产,支持循环经济原则.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 盐水流对生物处理提出了挑战,增加了管理成本.
- 提高乳制品副产品的价值,如奶酪乳糖,对于可持续的工业实践至关重要.
研究的目的:
- 通过在高盐度下使用混合微生物培养 (MMC) 来研究从发酵奶酪乳清中生产聚酸 (PHA).
- 探索使用海水作为PHA生物生产中淡水的经济有效替代品.
主要方法:
- 在饥荒条件下,在连续批量反应堆中选择PHA积累的MMC.
- 在近海水盐度 (30g NaCl/L) 的种植,具有特定的液压保留时间和有机加载率.
- 补充瓦莱里克酸以产生聚合物.
主要成果:
- 一个PHA含量为56.4%重量. 实现了,包括P(3HB-co-3HHx) 与7%的3HHx.
- 用酸补充产生的聚合物P(3HB-co-3HV-co-3HHx) 的最大PHA含量为62%的重量.
- 选择的MMC在高盐度下表现出强的PHA生产性能.
结论:
- 发酵奶酪乳清可以在盐水环境中使用MMC有效地转化为PHA.
- 海水是PHA生产中淡水的可行替代品,促进循环经济和环境可持续性.
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