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KMID : 0379119950230040348
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Korean Journal of Mycology
1995 Volume.23 No. 4 p.348 ~ p.353
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Biodegradation of Poly (3-hydroxybutyrate) by Penicillium pinophilum
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Abstract
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Biodegradability of poly (3-hydroxybutyrate) (PHB) by Penicilllum pinophilum was investigated by the modified Sturm Test. The biodegradability measurement by this method was more reproducible than other conventional activated sludge methods. Optimum inoculum size for the PHB biodegradation was 1 % (v/v). The degradation appeared to occur not only on the sample surface but also inside the sample because the biodegradation did not increase quite proportionally with the sample surface area. The biodegradation rate increased to an asymptotic value as the nitrogen content in the test medium increased, indicating the nitrogen source was needed for the synthesis of the PHB depolymerase.
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