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通过ATP生物发光和SERS方法在样中比较检测大肠杆菌,B. subtilis及其混合物
Maomei Xie1, Zeshuai Zhang1, Shiyu Gao1
1College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
概括
快速检测食物中的致病细菌,如大肠杆菌和B. subtilis,至关重要. 表面增强拉曼光谱 (SERS) 和腺三酸盐生物发光 (ATP-BL) 为传统方法提供了更快,更具成本效益的替代方案.
科学领域:
- 食品安全和微生物学
- 分析化学是一种分析化学.
- 光谱学和光学检测的检测.
背景情况:
- 病原细菌污染对食品安全和人类健康构成风险.
- 检测细菌的传统培养方法耗时且昂贵.
- 开发快速,灵敏和可靠的检测技术是必不可少的.
研究的目的:
- 建立和比较表面增强的拉曼光谱 (SERS) 和腺三酸盐生物发光 (ATP-BL) 平台,用于检测大肠杆菌和B. subtilis.
- 评估SERS和ATP-BL在果片中识别细菌的性能.
- 评估这些新型检测方法的速度,成本,灵敏度和可靠性.
主要方法:
- 开发SERS和ATP-BL光学检测平台.
- 用SERS和ATP-BL检测大肠杆菌,B. subtilis及其混合物. 在片中的应用.
- 将SERS和ATP-BL的性能与使用统计分析 (t测试) 的传统板培养方法进行比较.
主要成果:
- 与培养方法相比,SERS和ATP-BL都显著减少了检测时间和成本.
- 在片中,SERS的检测极限低于ATP-BL (26.0150.63 CFU/mL) 的检测极限 (6.1111.22 CFU/mL).
- 统计分析显示,SERS,ATP-BL和培养方法之间没有显著差异 (P>0.05),恢复率在85%-115%之间.
结论:
- SERS和ATP-BL是敏感且可靠的方法,用于快速检测食物矩阵中的细菌,如果片.
- 在稳定性,检测极限和时间消耗方面,SERS在ATP-BL上表现优越.
- 这些先进的光学检测平台通过有效的病原体监测,为确保食品安全和公共卫生提供了有希望的替代方案.
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