Oxalic Acid from Lentinula edodes Culture Filtrate: Antimicrobial Activity on Phytopathogenic Bacteria and Qualitative and Quantitative Analyses.
10.5941/MYCO.2016.44.4.338
- Author:
A Min KWAK
1
;
In Kyoung LEE
;
Sang Yeop LEE
;
Bong Sik YUN
;
Hee Wan KANG
Author Information
1. Graduate School of Future Convergence Technology, Hankyong National University, Anseong 17579, Korea. kanghw2@hknu.ac.kr
- Publication Type:Brief Communication
- Keywords:
Antibacterial activity;
Oxalic acid;
Qualitative and quantitative analyses
- MeSH:
Agaricales;
Bacteria*;
Chromatography;
Chromatography, High Pressure Liquid;
Chromatography, Liquid;
Lentinula*;
Oxalic Acid*;
Plant Diseases;
Plants;
Ralstonia solanacearum;
Shiitake Mushrooms*;
Water
- From:Mycobiology
2016;44(4):338-342
- CountryRepublic of Korea
- Language:English
-
Abstract:
The culture filtrate of Lentinula edodes shows potent antimicrobial activity against the plant pathogenic bacteria Ralstonia solanacearum. Bioassay-guided fractionation was conducted using Diaion HP-20 column chromatography, and the insoluble active compound was not adsorbed on the resin. Further fractionation by high-performance liquid chromatography (HPLC) suggested that the active compounds were organic acids. Nine organic acids were detected in the culture filtrate of L. edodes; oxalic acid was the major component and exhibited antibacterial activity against nine different phytopathogenic bacteria. Quantitative analysis by HPLC revealed that the content of oxalic acid was higher in the water extract from spent mushroom substrate than in liquid culture. This suggests that the water extract of spent L. edodes substrate is an eco-friendly control agent for plant diseases.
