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KMID : 0665220040170020177
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Korean Journal of Food and Nutrition
2004 Volume.17 No. 2 p.177 ~ p.185
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Properties in Formation of Protein-Binding Polysaccharide in Cordyceps militaris
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Lee Young-Youp
Chung Yong-Joon
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Abstract
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The effects of liquid culture conditions and nutrient sources on the formation of protein-binding polysaccharide (PS) in Cordyceps militaris were examined. The formation amount of PS was increased in proportion to the growth rate of mycelium, in case of higher aeration or lower acidity. The optimum growth temperature of the mycelia was 25^{circ}C for the formation of PS. The optimum carbon source and nitrogen source were glucose and peptone, respectively. The ratio of C/N was optimal with 3％ glucose to 0.5 ％ peptone. The sugar composition in the PS was greatly changed according to the carbon sources. The mycelium of Cordyceps militaris by liquid culture showed a higher electron donating ability than that by solid culture.
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KEYWORD
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protein-binding polysaccharide, Cordyceps militaris, electron donating ability
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