选择性无氧细菌使合成脂肪酸在微空气条件下降解
Carla Pereira Magalhães1, M Salomé Duarte2, M Alcina Pereira2
1CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
Bioresource technology
|November 15, 2024
概括
选择性无氧细菌 (FAB) 保护合成体社区降解脂肪酸从生物反应器中的氧气抑制. 这使得即使在不保持严格的无氧条件的情况下,也可以提高甲的产量.
科学领域:
- 微生物学 微生物学
- 环境科学 环境科学
- 生物技术是生物技术.
背景情况:
- 微量氧可以刺激有机无氧细菌 (FAB),增强脂肪酸的甲产量.
- 在微型有氧条件下,FAB在支持同位体群落中的作用仍然不太清楚.
研究的目的:
- 研究FAB在不同氧气水平下对合成脂肪酸降解的保护作用.
- 为了确定在FAB的存在和缺席下,合成的共同培养的氧气耐受性.
主要方法:
- 使用了两个合成的共同培养物 (Syntrophomonas wolfei + Methanospirillum hungatei和Syntrophomonas zehnderi + Methanobacterium formicicum) 进行研究.
- 在微空气条件下 (0-10% O2) 用和不用Pseudomonas spp.的共同种植被各种脂肪酸化. (FAB). 在这个问题上.
主要成果:
- 在没有FAB的情况下,0.5%O2的合成活性被抑制了79%.
- 与Pseudomonas spp.,共同培养成功地将脂肪酸转化为甲,高达2%的O2.
结论:
- FAB在保护合成脂肪酸降解社区免受氧气暴露方面发挥着至关重要的作用.
- FAB的存在提高了无氧消化过程在波动的氧气条件下的弹性和效率,这与实体消化器有关.
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