Food and Chemical Toxicology, Journal Year: 2024, Volume and Issue: unknown, P. 115159 - 115159
Published: Nov. 1, 2024
Language: Английский
Food and Chemical Toxicology, Journal Year: 2024, Volume and Issue: unknown, P. 115159 - 115159
Published: Nov. 1, 2024
Language: Английский
Toxins, Journal Year: 2025, Volume and Issue: 17(1), P. 21 - 21
Published: Jan. 3, 2025
Bacillus microorganisms play an important role in the zearalenone (ZEA) biotransformation process natural environments. The phosphotransferase pathway is both widespread and relatively well conserved. However, reaction kinetics of these phosphotransferases remain poorly understood, their catalytic activities are suboptimal. In this study, a ZEA phosphotransferase, ZPH1101, was identified from subtilis 1101 using genome sequencing. product transformed by ZPH1101 as phosphorylated (ZEA-P) through LC-TOF-MS/MS analysis. experiments conducted on MCF-7 cells demonstrated that ZEA-P exhibited lower level estrogenic toxicity than ZEA. optimal conditions for were determined to be 45 °C pH 8.0. maximum velocity (Vmax), Michaelis constant (Km), (kcat) calculated fitting 16.40 μM·s-1·mg-1, 18.18 μM, 54.69 s-1, respectively. Furthermore, adding 1 mmol/L Fe2+ or Fe3+ system increased efficiency converting 100% relative containing solely ATP Mg2+, suggesting low concentrations can improve ZPH1101-mediated transformation This study contributes enzymatic removal broadens spectrum strain enzyme options available researchers detoxification efforts.
Language: Английский
Citations
1Food Control, Journal Year: 2025, Volume and Issue: unknown, P. 111178 - 111178
Published: Jan. 1, 2025
Language: Английский
Citations
0Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 490, P. 137778 - 137778
Published: Feb. 26, 2025
Language: Английский
Citations
0Food Bioscience, Journal Year: 2025, Volume and Issue: unknown, P. 106345 - 106345
Published: March 1, 2025
Language: Английский
Citations
0Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16
Published: March 26, 2025
Zearalenone (ZEN), a naturally occurring estrogenic mycotoxin prevalent in cereals and animal feed, poses significant challenge to livestock industry owing its detrimental effects on reproduction. In this study, the strains with high degradation rate were screened through co-culture ZEN, identified by bacterial morphology, 16S rDNA sequencing whole genome sequencing. The detoxification effect of L-4 strain ZEN was evaluated under different concentration, treatment time, pH value temperature, products identified, contaminated corn meal evaluated. degrading enzyme sequence obtained protein analysis L-4, verified molecular binding addition catalase. We isolated Bacillus mojavensis from cecal content laying hens, which demonstrated exceptional ZEN-degrading efficiency. Under optimized conditions (pH 7.0, 37 °C), completely degraded 0.5–1.0 μg/mL into less toxic 15-OH-ZEN within 24 h. Importantly, achieved 49.41% for cornmeal. Whole-genome revealed presence genes enzymes. particular, efeB 3668, peroxidase-like homology (95.91%) BsDyP subtilis , played key role primarily hydrogen bonding hydrophobic interactions. Thus, rapid effective B. coupled adaptability diverse environments, underscores potential application safeguarding health mitigating environmental pollution.
Language: Английский
Citations
0Toxicon, Journal Year: 2024, Volume and Issue: unknown, P. 108106 - 108106
Published: Sept. 1, 2024
Language: Английский
Citations
3Food and Chemical Toxicology, Journal Year: 2024, Volume and Issue: unknown, P. 115159 - 115159
Published: Nov. 1, 2024
Language: Английский
Citations
1