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Biosci Biotechnol Biochem. 2011;75(11):2264-8. Epub 2011 Nov 7.

Use of bottom ash of waste coal as an effective microbial carrier.

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  • 1Environment-Friendly Research Division, Gyeongsangnam-do Agricultural Research and Extension Service, Chinju, Republic of Korea.


An experiment was done to determine the efficacy of waste bottom ash as an effective microbial carrier. Bottom ash found to be a suitable microbial carrier. The average of viable cells of Paenibacillus polymyxa GS01 (as a test biocontrol agent) in bottom ash samples was about 10(8) cfu/10 ± 2 mg. The surface of bottom ash coated with 5% PVA w/v was most effective for improvement of cell viability. TSB medium containing 50 mg/L of MnSO(4) · H(2)O was the best for spore production of P. polymyxa GS01. Thus waste bottom ash coating with 5% PVA is likely to be suitable for use as a microbial carrier.

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