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乳酸生产从甘巴格斯水解由Lactiplantibacillus菌株

Michelle C A Xavier¹, Giancarlo S Dias², Saartje Hernalsteens³

¹Federal University of Tocantins (UFT), NS-15 Ave., Quadra 109-Alcno 14, North, 77001-090 Palmas, Tocantins, Brazil.

|November 10, 2025

概括

乳酸细菌,特别是Lactiplantibacillus pentosus ATCC 8041,可以有效地将甘包油废物的糖转化为乳酸. 这表明,从农业产业残留物中生产乳酸是一种可持续的方法.

科学领域:

生物技术和工业微生物学
可持续化学可持续化学
生物炼油工艺生物炼油工艺

背景情况:

乳酸 (LA) 是一种重要的有机酸,具有广泛的工业应用,包括生物塑料.
甘包油 (SCB) 是一种纤维纤维素残留物,是丰富的发酵糖来源,如和六.
有效的微生物转化SCB衍生糖对于可持续的LA生产至关重要.

研究的目的:

从SCB水解剂中选乳酸细菌进行粉酶发酵.
为了评估LA的生产使用特定的菌株在存在或不存在的hexoses.
评估利用SCB的半纤维素和纤维素分数用于LA合成的潜力.

主要方法:

对9种Lactiplantibacillus spp.进行查. 用于食用西洛斯的菌株.
在2L生物反应器中使用SCB水解剂 (半纤维素和总) 进行发酵试验.
在不同的介质条件下分析LA产量和度.

主要成果:

乳植物菌 pentosus ATCC 8041 显示出优异的西洛斯同化和LA生产.
这种菌株在总水解基中实现了高LA产量 (0.78g/g) 和度 (28.99g/L).
即使用稀释的半纤维素化物 (产量为0.65g/g),也观察到显著的LA产量.

结论:

L. pentosus ATCC 8041有效地利用从SCB水解物中获得的酸来生产LA.
这种菌株表现出与葡萄糖共同发酵西洛斯的能力.
这项研究突出了从丰富的农业工业废物中实现可持续的LA制造的有希望的途径.

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