期刊
PHYTOCHEMISTRY LETTERS
卷 16, 期 -, 页码 134-140出版社
ELSEVIER
DOI: 10.1016/j.phytol.2016.03.014
关键词
Aspergillus iizukae; Aspernolide; Antioxidants
资金
- National Natural Science Foundation of China [81503218]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Program for Changjiang Scholars and Innovative Research Team in University [IRT_15R63]
- Youth Fund Project of Basic Research Program of Jiangsu Province (Natural Science Foundation) [BK20130651]
Four new aromatic butenolides named aspernolides H-K (1-4), along with three known compounds (5-7), were isolated from the metabolites of Aspergillus iizukae, which resided in the guts of cricket species Gryllus testaceus. The structures were elucidated by extensive spectroscopic analysis, modified Mosher methods and Mo-2(OAc)(4)-induced electronic circular dichroism (ECD) experiments. Their antioxidant activities were evaluated through ABTS and DPPH radical scavenging assays. Compounds 3, 5, and 7 exhibited significant activities with IC50 values of 29.46, 9.59 and 12.36 mu M, respectively, compared with the positive control trolox (IC50 13.11 mu M). (C) 2016 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved.
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