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KMID : 0380020090240060584
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Korean Journal of Biotechnology and Bioengineering
2009 Volume.24 No. 6 p.584 ~ p.590
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Composition and Structural Characteristics of Polysaccharide from Hot Water Extraction of Auricularia auricula
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Kim Hyeon-Min
Hur Won
Lee Shin-Young
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Abstract
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A hot-water extract from fruit body of Auricularia auricula was purified by ethanol precipitation and subsequent dialysis. The polysaccharide showed a typical IR spectrum similar to β-glucan and was composed of glucose and mannose in a molar ratio of 16.8：83.2 indicating that it is a glucomannan. A glucomannan-like polysaccharide was also identified from Tremella fuciformis. Both of the polysaccahrides showed the presence of acetyl groups and presented colorimetric responses for β-1,4-glucomannan indicating the acetylated β-glucomannan similar to the typical polysaccharide found in Aloes.
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KEYWORD
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A. auricula and Tremella fuciformis, polysaccharide, composition, structural property
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