Effect of Carbon Source on Properties and Antioxidant Potential of Exopolysaccharides Produced by Trametes robiniophila (Higher Basidiomycetes).
The effects of carbon source on properties and antioxidant potential of exopolysaccharides (EPS) produced by Trametes robiniophila were investigated in this study. The results indicated that the EPS production varied with five different carbon sources. The predominant carbohydrate compositions in EPSs identified were glucose and mannose. Then, FT-IR spectral analysis revealed prominent characteristic groups in the EPSs. Furthermore, thermogravimetric analysis (TGA) indicated the EPS with lactose as the carbon source showed different degradation behavior as compared to the other four EPSs, probably due to larger ribose content as one of major monosaccharides in the EPS. The variation also affects the antioxidant activities investigated by using hydroxyl and DPPH radical scavenging assay. Sucrose was the best carbon source from the viewpoint of antioxidant activity due to the relatively high xylose content in the EPS.
College of Bioengineering, Henan University of Technology, Zhengzhou, Henan 450001, Poeple's Republic of China.
Huiru
H
Zhang
College of Bioengineering, Henan University of Technology, Zhengzhou, Henan 450001, Poeple's Republic of China.
Qiang
Q
Li
College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450002, P.R. China.
Peixin
P
He
College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450002, People's Republic of China.
Chunping
C
Xu
D000975:Antioxidants / Q000494:pharmacology*; D001688:Biological Products / Q000378:metabolism / Q000494:pharmacology*; D018533:Biomass; D002244:Carbon / Q000378:metabolism*; D003470:Culture Media; D004187:Disaccharides / Q000378:metabolism*; D004355:Drug Stability; D005285:Fermentation; D062610:Fungal Polysaccharides / Q000096:biosynthesis / Q000494:pharmacology*; D009005:Monosaccharides / Q000378:metabolism*; D013395:Sucrose / Q000378:metabolism; D013818:Thermogravimetry; D055454:Trametes / Q000254:growth & development / Q000378:metabolism*
D000975:Antioxidants; D001688:Biological Products; D003470:Culture Media; D004187:Disaccharides; D062610:Fungal Polysaccharides; D009005:Monosaccharides; D013395:Sucrose; D002244:Carbon