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研究说明:用无棕树脂中链脂肪酸制肉中的沙门氏菌

D Hermans¹, B Maertens², S Verstringe¹

¹Nutrition Sciences NV, 9031 Drongen, Belgium.

Poultry science

|August 23, 2024

概括

无棕的中链脂肪酸 (MCFA) 显著降低了肉中的沙门氏菌 (Salmonella Enteritidis) 殖民. 这种环保的料添加剂还在体外减少了细菌的粘附和入侵,为家禽养殖提供了一个有前途的解决方案.

科学领域:

动物科学动物科学
微生物学微生物学
食品安全食品安全

背景情况:

沙门氏菌是全球普遍存在的动物传染病,由于持续携带沙门氏菌,家禽肉是重要的传播来源.
目前动物料中的中链脂肪酸 (MCFA) 往往来自棕油,这引发了环境问题.
需要可持续和有效的替代方法来控制家禽中的沙门氏菌.

研究的目的:

评估无棕树的MCFA混合物 (C6-C9) 在减少肉中沙门氏菌 (SE) 殖民的疗效.
研究这种MCFA混合物对SE特征的体外影响,特别是粘附和侵入.

主要方法:

50只肉被分为两组:一组接受标准料,另一组接受料补充300ppm无棕MCFAs.
所有的都在第7天口服注射了SE.
通过在11日和12日的毛片,肝脏和白内障样本中列出SE,评估了SE殖民.
实验室试验检查了MCFA对SE粘附和侵入Caco-2细胞的影响.

主要成果:

用无棕树的MCFA混合物补充剂显著降低了SE阳性盲体样本的百分比 (36%对64%,P = 0.044).
在体外,在低于最小的抑制度使用MCFA进行预化,显著降低了SE对Caco-2细胞的粘附和入侵 (p <0.05).
这些发现表明,观察到的肠道SE殖民化减少的机制.

结论:

经过测试的环保,无棕树的MCFA混合物显示出作为控制 brojler中的Salmonella Enteritidis的工具的巨大潜力.
混合物在体外抑制细菌粘附和入侵的能力支持其在减少肠道殖民化的有效性.
这种可持续的MCFA替代方案为提高家禽生产中的食品安全提供了一个有希望的战略.

关键词:

沙门氏菌沙门氏菌沙门氏菌肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉殖民化殖民化的殖民化中链脂肪酸脂肪酸中链脂肪酸

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