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The effect of culture conditions on δ-endotoxin production by strain S128 of Bacillus thuringiensis H-14 (locally isolated in Egypt) was investigated using a 10l working volume fermenter. Fermentation medium formulated from the inexpensive locally available soya (as a nitrogen source) and molasses (as a carbon source) was used. Aeration, agitation, pH and initial concentration of molasses were chosen...
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