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Updated: Jul 16, 2026

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来自Lactococcus lactis亚种的代谢物乳糖:隔离,结构解,以及抗菌活性

Vishwambar D Navale^1,2, Balasaheb R Borade^3,2, Gamidi Rama Krishna^3,2

¹Biochemical Sciences Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.

|October 16, 2023

概括

研究人员从益生菌Lactococcus lactis中发现了新的代谢物,包括潜在的抗结核药物pyrazinamide. 这些化合物对细菌,真菌和酵母菌具有强大的抗微生物活性.

科学领域:

微生物学微生物学
自然产品化学自然产品化学
药物发现药物发现药物发现

背景情况:

益生菌微生物是生物活性化合物的来源.
乳球菌乳酸菌亚种. 乳糖是一种乳制品衍生的细菌,具有潜在的健康益处.
传统的乳制品可能含有独特的微生物菌株.

研究的目的:

为了识别和描述来自Lactococcus lactis亚种的新代谢物. 牛奶. 牛奶. 牛奶. 这是.
评估分离的代谢产物的抗菌潜力.
从自然来源探索新的治疗剂.

主要方法:

使用染色学分离和净化代谢物.
通过NMR光谱 (1D和2D) 和质谱学阐明结构.
使用最小抑制度 (MIC) 测试进行抗菌活性测试.

主要成果:

确定了四种新型代谢物:皮拉津胺胺 (1),DDMP (2),2,4-di-tert-butylphenol (3) 和棕酸 (4).
化学结构通过NMR,质谱学和X射线晶体学得到证实.
化合物1和3表现出强大的广谱抗菌活性,MIC在1.56-25μg/mL之间.

结论:

乳球菌乳酸菌亚种. 乳糖产生的生物活性代谢物具有显著的抗微生物特性.
皮拉津胺和2,4-di-tert-butylphenol显示出希望作为开发新抗菌剂的领导者.
这项研究强调了乳制品衍生益生菌作为新型治疗化合物的来源的潜力.

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