Physical limitations induced by a medium based on wheat bran for the production of biopesticides by Bacillus thuringiensis spp kurstaki
نویسندگان
چکیده
Biopesticides, vectors for the development of bioeconomy, represent a realistic alternative to petroleum-based chemical pesticides and their known harmfulness humans environment. Bacillus thuringiensis is gram-positive, spore-forming bacterium used production biocontrol agents in agriculture. This insecticidal activity mainly due parasporal δ-endotoxins consisting an assembly crystalline proteins called Cry. The European project IPM-4-Citrus (MSCA RISE, No. 734921, 2017-2023) aims optimise these bioproductions from 3 strains subsp kurstaki (Lip, BLB1 HD1) complex medium (wheat bran). biochemical composition nutritional limitations induced by were identified. physical properties heterogeneous suspensions are necessary definition operating conditions favourable scale-up. In this study, morpho-granulometry substrates, ability separate solid-liquid suspension clarify fermentation broth, rheological behaviour studied as function substrate concentration granulometry.
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ژورنال
عنوان ژورنال: MATEC web of conferences
سال: 2023
ISSN: ['2261-236X', '2274-7214']
DOI: https://doi.org/10.1051/matecconf/202337905003