Influence of Inhibitors Generated in Lignocellulosic Hydrolysates from Group of Acids on the Growth of Strains TG1 and Tuner of Escherichia coli

Microorganisms, Год журнала: 2025, Номер 13(3), С. 605 - 605

Опубликована: Март 5, 2025

Concerns over fossil fuels are of increasing interest in biorefineries that utilize lignocellulosic residues. Besides sugars, inhibitors formed during biomass pretreatment, including acetic acid (AI) and formic (FI), which can hinder microbial fermentation. The TG1 Tuner strains Escherichia coli were subjected to various concentrations. Samples taken fermentation monitor growth, sugar consumption, yield, product yield. With AI, the strain maintained stable growth (0.102 1/h), while xylose consumption decreased, formation improved, making it better suited for high-acetic-acid industrial applications. In contrast, performed under low-inhibitor conditions but suffered metabolic inhibition at high AI levels, compensating by lactic production—an adaptation absent TG1. However, showed greater resistance stress, sustaining higher ethanol production, whereas experienced a decline output. Both metabolism, had yield despite its lower overall robustness conditions. use value-added compounds such as or may help avoid chemicals eliminate acid. could be used especially hydrolysates with moderate concentration.

Язык: Английский

Prevalence of potentially pathogenic and antimicrobial-resistant Escherichia coli in raw milk and dairy products in Egypt

International Dairy Journal, Год журнала: 2024, Номер unknown, С. 106145 - 106145

Опубликована: Дек. 1, 2024

Язык: Английский