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在商业发酵产品中对转基因微生物污染的基因基因组学追踪
Jolien D'aes1, Marie-Alice Fraiture1, Bert Bogaerts1
1Sciensano, Transversal activities in Applied Genomics (TAG), J. Wytsmanstraat 14, 1050 Brussels, Belgium.
Food chemistry. Molecular sciences
|January 21, 2025
概括
甲基因组猎枪测序有效地追踪了食品酶中的转基因微生物 (GMM) 污染,揭示了共享的生产者菌株和来自AMR基因的潜在公共卫生风险. 这凸显了需要更好的发酵产品的可追溯性.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 食品科学 食品科学 食品科学
背景情况:
- 转基因微生物 (GMM) 在食品酶生产中被广泛使用.
- 最终产品中未经授权的转基因转基因或重组DNA污染是一个常见的问题.
- 识别污染源对于监管行动和消费者安全至关重要.
研究的目的:
- 评估元基因组猎枪测序的可行性,以调查发酵产品中的微生物污染.
- 通过菌株解构和族系学分析,追踪转基因菌种污染的来源.
- 了解商业食品酶制品中的微生物污染概况和关系.
主要方法:
- 对16种转基因菌被污染的食物酶产品进行了转基因基因组分序测.
- 用了菌株解和基因组学方法来追踪转基因生物的来源.
- 分析包括识别转基因生物,其他微生物污染物和抗菌素耐药性 (AMR) 基因.
主要成果:
- 在不同的产品中经常发现相同的转基因转基因生产菌株.
- 在单一产品中经常检测到多个转基因转基因污染物.
- 抗菌素耐药性 (AMR) 基因与转基因菌污染有很强的关联,这表明公共卫生风险.
- 类似的污染档案表明,一些样品的生产设施或批量共享.
- 甲基因组学提供了对微生物污染关系的见解.
结论:
- 甲基因组猎枪测序是调查微生物污染和追踪发酵产品中的GMM来源的宝贵工具.
- 这些发现强调了需要加强产品可追溯性的指导方针和质量控制,以确保消费者安全.
- 拟议的方法适用于其他发酵产品和生产菌株.
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