亚氏酸A-H,C13-多基基酸来自一种来自海洋的Aspergillus terreus
Yue-Wei Xu1,2, Zhi-Pu Yu2,3,4, Xiang-Yu Liu2
1Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, People's Republic of China.
Chemistry & biodiversity
|March 3, 2025
概括
研究人员从Aspergillus terreus中分离出11种多基基,其中包括8种名为asptertides A-H.的新化合物. 一些化合物在DPPH测定中显示出中度的抗氧化活性.
科学领域:
- 自然产品化学 自然产品化学
- 菌类学 菌类学是指菌类学.
- 有机化学 有机化学
背景情况:
- 内生真菌,如Aspergillus terreus,是结构多样化的二次代谢物的丰富来源.
- 聚基化物 (Polyketides) 是一类具有广泛生物活性的自然产品.
- 从突变的真菌菌株中研究新型化合物可以导致发现独特的化学结构.
研究的目的:
- 从内生菌真菌Aspergillus terreus RA2905.5.的突变菌株中分离和鉴定C13-多基基类的特征.
- 用光谱方法和计算分析来确定新聚基化物化合物的结构.
- 通过DPPH激素清除试验,评估分离化合物的抗氧化潜力.
主要方法:
- 从一个突变的Aspergillus terreus RA2905菌株中分离出11种C13-多基基.
- 基拉尔相高性能液态染色学 (HPLC) 分离五个反体对.
- 使用全面的光谱数据分析和电子循环二元化 (ECD) 计算来阐明结构.
- 2,2-diphenyl-1-picrylhydrazyl (DPPH) 基因清除生物试验以评估抗氧化活性.
主要成果:
- 隔离了11种C13-多基化物,其中包括单环芳香或环松子部分和氧化双环原子核.
- 确定了8种以前未报告的化合物,被指定为阿斯丁甲-H (1-8).
- 五对反体被成功分离出来.
- 几种孤立化合物表现出中度抗氧化作用,其半最大抑制度 (IC50) 值在13.7至35.6微米之间.
结论:
- 这项研究成功地从一个突变的Aspergillus terreus菌株中识别和特征化了新型多基菌.
- 新发现的阿斯普特化物代表了一个独特的化学类别,有进一步研究的潜力.
- 这些已识别的化合物具有适度的抗氧化特性,这表明在打击氧化应激方面有潜在的应用.
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