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One-hundred fifty isolates of Bacillus thuringiensis were tested for their ability to produce chitinase using colloidal chitin agar as the primary plating medium. Of 14 strains that produced chitinase, B. thuringiensis ssp. kurstaki HD-1(G) was identified as the highest chitinase producer and selected for further study. This bacterium produced the highest amount of chitinase (19.3 mU/ml) when it was...
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