海绵来源真菌Aspergillus sp. SCSIO 41018的次级代谢产物及其自由基清除活性研究
袁媛(1998—), 女, 陕西省铜川市人, 硕士研究生, 研究方向海洋药物化学。email: yuanyuan555@stumail.nwu.edu.cn |
Editor: 林强
收稿日期: 2024-01-10
修回日期: 2024-02-22
网络出版日期: 2024-02-27
基金资助
海南省科技计划三亚崖州湾科技城联合项目(2021JJLH0097)
广东省区域联合基金-重点项目(2022B1515120075)
Secondary metabolites from the sponge-derived fungus Aspergillus sp. SCSIO 41018 and their free radical scavenging activity
Editor: LIN Qiang
Received date: 2024-01-10
Revised date: 2024-02-22
Online published: 2024-02-27
Supported by
Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City(2021JJLH0097)
Guangdong Basic and Applied Basic Research Foundation, China(2022B1515120075)
本文所研究的曲霉属真菌(Aspergillus sp. SCSIO 41018)分离自广东省徐闻县的美丽海绵属海绵(Callyspongia sp.)。通过硅胶柱色谱, Sephadex LH-20凝胶柱色谱以及半制备高效液相色谱等分离方法对其大米发酵物进行分离纯化, 利用核磁共振波谱和质谱等测试技术, 参考已报道的化合物数据, 对得到的7个次生代谢产物进行结构鉴定, 分别为: cycloechinulin (1)、4-methyl-1H-pyrazole-3-carboxylic acid (2)、diorcinol (3)、methyl-4-hydroxy-2-(3-hydroxy-5-methylphenoxy)-6-methylbenzoate (4)、3, 4-二羟基苯乙酸(5)、3, 4-二羟基苯甲酸(6)和吲哚-3-甲醛(7), 其中化合物2为首次从曲霉属真菌中分离获得。对分离到的化合物1—6进行自由基清除活性试验, 结果表明化合物5和6的自由基清除能力均强于阳性对照抗坏血酸(vitamin C, Vc), 是强效的抗氧化剂。
关键词: Aspergillussp.; 真菌; 次级代谢产物; 自由基清除活性
袁媛 , 张媛媛 , 许福泉 , 刘庆超 , 王俊锋 . 海绵来源真菌Aspergillus sp. SCSIO 41018的次级代谢产物及其自由基清除活性研究[J]. 热带海洋学报, 2024 , 43(6) : 196 -200 . DOI: 10.11978/2024011
This paper reported the identification of seven compounds from the rice ferment of Aspergillus sp. fungus SCSIO 41018 isolated from sponge Callyspongia sp. in the Xuwen County, Guangdong Province, China. These compounds were purified by silica gel column chromatography, Sephadex LH-20 gel column chromatography and semi-preparative high performance liquid chromatography. The seven compounds were identified by nuclear magnetic resonance spectroscopy and mass spectrometry to determine their structures, in combination with the reported data, as: cycloechinulin (1), 4-methyl-1H-pyrazole-3-carboxylic acid (2), diorcinol (3), methyl-4-hydroxy-2-(3-hydroxy-5-methylphenoxy)-6-methylbenzoate (4), benzeneacetic acid (5), protocatechuic acid (6), indole-3-carboxaldehyde (7), wherein compound 2 was first isolated from Aspergillus sp. fungi. The free radical scavenging activity was evaluated, and the results showed that compounds 5 and 6 had stronger free radical scavenging ability and antioxidants potential than the positive control ascorbic acid (Vc, vitamin C).
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