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Biosynthesis of selenium-containing polysaccharides with antioxidant activity in liquid culture of Hericium erinaceum

Paper ID Volume ID Publish Year Pages File Format Full-Text
17924 42705 2009 10 PDF Available
Title
Biosynthesis of selenium-containing polysaccharides with antioxidant activity in liquid culture of Hericium erinaceum
Abstract

The effects of inorganic selenium (sodium selenite) and Selol containing selenitetriglycerides synthesized from sunflower oil on mycelial growth and selenium-containing extracellular (EPS) and intracellular (IPS) polysaccharides production were examined in shake flask cultures of Hericium erinaceum.Unlike sodium selenite which inhibited mycelial growth, Selol increased in biomass production in a dose-dependent manner. Selol also dramatically enhanced EPS formation to 2.25 g/L which is 2.5–fold higher than in the control. Selenium content in EPS and IPS obtained from Selol-enriched medium reached a maximum of 4.89 and 4.69 mg/g, respectively.The in vitro antioxidant activities of polysaccharides were evaluated by reducing power, inhibition of lipid peroxidation, and 1,1-diphenyl-dipicrylhydrazyl radicals scavenging assays. The selenium-containing EPS showed an excellent antioxidant activity correlated well with increasing concentrations.The results suggested that selenium-containing EPS from H. erinaceum submerged culture should be explored as a novel selenium source in dietary supplements, with potent antioxidant properties.

Keywords
Polysaccharides; Hericium erinaceum; Selenium; Antioxidant activity; Mushroom; Selenitetriglycerides; Selol
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Biosynthesis of selenium-containing polysaccharides with antioxidant activity in liquid culture of Hericium erinaceum
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 44, Issue 5, 6 May 2009, Pages 334–343
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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