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Updated: Sep 30, 2026

Extraction and Analysis of Taiwanese Green Propolis
Published on: January 7, 2019
New antioxidants from the culture broth of Coprinopsis echinospora
Dae-Won Ki1, Dae-Won Kim1, Ja-Gyeong Song1
1Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan-si, Korea.
Abstract:
During the search for natural antioxidants from fungal metabolites, three new sesquiterpene derivatives (1-3) have been isolated from the culture broth of Coprinopsis echinospora. Their structures were determined by spectroscopic methods, mainly NMR and mass spectrometric analyses. These compounds exhibited antioxidant activity with IC50 values in the range of 34.4-144.5 μM in the 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical-scavenging assay.

