来自Bacillus subtilis J6的新型冷适应型甲状腺降解酶及其在食品矩阵中的甲状腺残留缓解的应用
Mengmei Zhang1, Kun Yang1, Li Yang1
1College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China.
Journal of hazardous materials
|November 4, 2024
概括
细菌细菌的雌激酶Est10和Est13可以降解铁类杀虫剂. Est13在分解β-cypermethrin方面表现出高效率,为生物修复和减少食品中的农药残留提供了潜力.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 生物化学 生化学
背景情况:
- 类杀虫剂被广泛使用,但对人类健康构成风险.
- 乙键的水解是甲基生物修复的关键第一步.
研究的目的:
- 来自 Bacillus subtilis 的 est10 和 est13 雌激酶基因进行克隆和表达.
- 为了研究重组雌激酶Est10和Est13的甲状腺降解能力.
主要方法:
- 在大肠杆菌中克隆和表达Bacillus subtilis的雌激酶基因 (est10,est13).
- 再组合雌激酶Est10和Est13的生物化学表征.
- 鉴定Est13的降解产品和催化残留物.
主要成果:
- 再组合的Est10和Est13雌激酶已经成功地产生.
- 与Est10相比,Est13在降解β-cypermethrin方面表现出更高的效率.
- Est13在25°C和pH值7.0时表现出最佳活性,具有广泛的pH稳定性和耐溶剂和NaCl.
- Est13有效地从各种食品矩阵中去除了β-cypermethrin残留物.
结论:
- 埃斯特13是一种有前途的酶,用于甲污染环境的生物修复.
- Est13在减少食品中的甲基残留物方面具有潜在的应用.
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