史蒂维亚多,它们的抗菌和抗炎性质,以及对消化酶的抑制作用
Khaing Zar Myint1,2, Zhuoyu Zhou1,2, Qiandai Shi1,2
1State Key Laboratory of Food Science and Resource, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China.
Molecules (Basel, Switzerland)
|November 25, 2023
概括
叶中的多 (PPSs) 对细菌表现出强大的抗微生物活性,并抑制癌细胞生长. 这些叶副产品具有作为天然抗菌剂的潜力.
科学领域:
- 植物化学 植物化学
- 自然产品 化学 化学
- 微生物学 微生物学
背景情况:
- 叶中的多 (PPSs) 是醇糖化物生产的丰富副产品.
- 之前的研究已经探索了生提取物的生物活性.
- 酸盐,特别是富含异基酸的酸盐,需要对其特殊性质进行研究.
研究的目的:
- 研究PPS的抗微生物,抗炎和消化酶抑制性质.
- 评估PPSs对癌细胞活力的抗癌作用.
- 为了比较PPSs的生物活性与已知的化合物,如表甲基酸盐 (EGCG).
主要方法:
- 从叶中提取和表征聚醇.
- 使用标准微生物菌株确定抗菌和抗真菌活性.
- 以剂量依赖的方式对癌细胞活力抑制的评估.
- 酶抑制试验用于消化酶和抗炎活性评估.
主要成果:
- 与抗真菌活性相比,PPSs对*E. coli*,*S. aureus*,*P. aeruginosa*和*B. subtilis*表现出更强大的抗菌活性.
- PPSs以剂量依赖的方式抑制了四个癌症细胞系的60%以上.
- PPSs与EGCG具有相似的消化酶抑制活性,但抗炎作用较弱.
结论:
- 富含异基酸的PPS具有显著的抗微生物和抗癌特性.
- 酸为抗微生物应用提供了潜在的天然替代品.
- 这项研究提供了第一份关于来自*Stevia rebaudiana*叶的非黄类多的生物活性的报告,突出了它们的潜在应用.
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