✦ LIBER ✦

δ-endotoxin activity and spore production in batch and fed-batch cultures ofBacillus thuringiensis

✍ Scribed by C. Avionone Rossa; C. Mignone

Publisher: Springer Netherlands
Year: 1993
Tongue: English
Weight: 275 KB
Volume: 15
Category: Article
ISSN: 0141-5492
DOI: 10.1007/bf00128322

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✦ Synopsis

The toxicity and the spore count of batch and fed batch cultures of Bacillus thurinEiensls vat. Israelensis were studied. Spore counts reached in both batch and fed batch cultures were as high as those reported in the literature, but the levels of toxicity found in the latter were about one order of magnitude lower than those attained in batch cultures. Avoiding restricted "cultures might be necessary to reachhiEh titres of &-endotoxin, which are essential if a good product is intended. Furthermore, spore count might not be a good parameter to predict insecticidal activity of Bacillus thurirlEiensls cultures.

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