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相关概念视频

Production of Organic Acids01:25

Production of Organic Acids

Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...

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相关实验视频

Updated: Jun 17, 2026

Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield
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红素分离合 乳糖酶介导的脱聚合 增强生物红素价值化

Rongqian Meng1,2,3, Siying Zhang3, Yihan Zhang3

  • 1Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.

Journal of agricultural and food chemistry
|June 2, 2025
PubMed
概括

将素分成更小的碎片并使用乳糖酶显著改善了其转化为微生物的宝贵产品,如多基酸盐 (PHA).

关键词:
生物转化生物转化生物炼油厂是一个生物炼油厂.拉卡斯拉卡斯拉卡斯拉卡斯拉卡斯拉卡斯素的分离法 素的分离法的价值化 的价值化

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科学领域:

  • 生物技术是生物技术.
  • 生物精炼是生物精炼的一种方式.
  • 微生物工程 微生物工程

背景情况:

  • 红素生物转化是可持续生物提炼的关键,但其复杂的结构阻碍了效率.
  • 微生物将氨酸转化为增值化学品和生物燃料,由于氨酸固有的异质性,面临着挑战.

研究的目的:

  • 通过使用*Pseudomonas putida* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0* KT2440.0*
  • 探索素分离和酶处理 (laccase-HBT) 对微生物素价值化的联合影响.

主要方法:

  • 素分离以获得不同的分子量分数 (F0,F1,F2,F3).
  • 在各种素分数上发酵*Pseudomonas putida* KT2440.
  • 使用乳糖酶和1-基二二酸盐 (HBT) 的酶治疗.
  • 分析聚酸 (PHA) 产量和细菌生长.
  • 异核单量子相关性 (HSQC) 分析以评估素结构变化.

主要成果:

  • 最低分子量素分数 (F3) 产生了最高的细胞量,PHA产量 (0.35 g/L) 和素降解.
  • 拉卡斯-HBT治疗在所有分数中显著增加了可活性的细菌.
  • 用乳糖HBT治疗的F3获得了最高的PHA产量 (0.41g/L),优于未经处理和乳糖治疗的样本.
  • 乳糖酶-HBT有效地分裂β-O-4键,从而产生更均的低分子量氨酸.

结论:

  • 素分离对于提高微生物生物转化效率至关重要.
  • 结合素分离与乳酶-HBT催化,优化了素的转化为PHA.
  • 这种综合方法通过产生统一的低分子量素基质,促进了微生物素的价值化.