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一种针对Helicobacter pylori的新型抗菌FxCy2:从Lactobacillus paracasei FX-6中分离和净化

Bo Bi¹, Meng Kang¹, Qianru Lin¹

¹Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China.

Food research international (Ottawa, Ont.)

|January 9, 2026

概括

一种名为FxCy2的新型抗微生物 (AMP),来自Lactobacillus,可以有效地抑制Helicobacter pylori. 这种天然与克拉里素具有协同效应,并显示出潜在的H. pylori治疗的卓越稳定性和安全性.

科学领域:

微生物学微生物学
生物化学生物化学
食品科学食品科学食品科学

背景情况:

杆菌的抗生素耐药性需要新的治疗策略.
天然抗菌剂是对抗H.pylori感染的有希望的替代品.

研究的目的:

从Lactobacillus paracasei FX-6中分离和表征一种新型抗微生物 (AMP).
评估已识别的AMP,FxCy2对H.pylori的疗效和生物安全性.

主要方法:

从Lactobacillus paracasei FX-6中分离和净化FxCy2的过程.
抗微生物活性测定 (MIC,与清素的协同作用).
的鉴定 (LC-MS/MS),结构分析和作用机制研究 (流细胞计,显微镜).

主要成果:

FxCy2表现出对H. pylori的显著抑制活性 (MIC = 1.25 mg/mL) 和与克拉里菌素的协同效应.
在LC-MS/MS中,FxCy2被确定为一个16-mer (FGANALLGVSLAVKCG).
FxCy2诱导了H. pylori细胞变形,膜损伤和细胞质泄漏,在广泛的pH和温度范围内表现出稳定性,细胞毒性低.

结论:

FxCy2是一种强效的食品衍生抗微生物,具有广泛的稳定性和生物安全性.
FxCy2显示出作为一种新型治疗剂,用于预防和治疗H. pylori感染的显著潜力.

关键词:

来自食物的抗微生物.功能性食品是一种功能性食品.在Helicobacter Pylori的研究中,牛乳杆菌帕拉凯西 (Lactobacillus paracasei) 是一种植物.膜破坏破坏膜破坏

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