Antioxidant activity and free radical scavenging activities of Streptomyces sp. strain MJM 10778

Author: Dong-Ryung LEE ¹ ; Joo-Won SUH ¹ ; Dong-Ryung LEE ² ; Sung-Kwon LEE ² ; Bong-Keun CHOI ² ; Jinhua CHENG ² ; Young-Sil LEE ² ; Seung Hwan YANG ² ; Joo-Won SUH ²
Author Information

1. Division of Bioscience and Bioinformatics, Myongji University
2. Center for Neutraceutical and Pharmaceutical Materials, Myongji University
Publication Type:Journal Article
Keywords: Antioxidant activity; DPPH radical scavenging assay; NO radical scavenging assay; Streptomyces sp. strain MJM 10778
From: Asian Pacific Journal of Tropical Medicine 2014;7(12):962-967
CountryChina
Language:Chinese
Abstract: Objective: To investigate the antioxidant activity of soil-borne actinobacteria. Methods: The total phenolic contents, the level of antioxidant potential by DPPH radical scavenging activity, NO scavenging activity, and ABTS radical scavenging activity in ethyl acetate extract were determined. Results: The 16S rDNA sequencing analysis revealed that Streptomyces sp. strain MJM 10778, which was isolated from Hambak Mountain, Korea, has 99.9% similarity to Streptomyces misionensis (S. misionensis) NBRC 13063. The physiological and the morphological test revealed that the strain MJM 10778 has different characteristics from the strain NBRC 13063. The entire antioxidant assay with the ethyl acetate extract displayed good radical scavenging activity. The IC