Bacillus thuringiensis var. israelensis production involving re-use of the supernatant.
The supernatant arising after biomass separation of Bacillus thuringiensis var. israelensis by flocculation/sedimentation was re-used after being supplemented with 25, 50 and 75% (w/v) of the original culture medium, based on corn steep liquor, glucose and mineral salts. Supplementation at 75% gave a spore concentration (1 x 10(10) c.f.u. ml(-1)) five times greater than that obtained with the other supplements.
Universidade Federal de Pernambuco, Departamento de Antibióticos, Av. Prof Moraes Rego, 1235, Cidade Universitária, CEP: 50.670-901, Recife PE, Brazil. chrislluna@yahoo.com.br
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D001413:Bacillus thuringiensis / Q000254:growth & development*; D003470:Culture Media; D005947:Glucose / Q000737:chemistry*; D012492:Salts / Q000737:chemistry*; D013171:Spores, Bacterial / Q000254:growth & development
D003470:Culture Media; D012492:Salts; D005947:Glucose