On the settling of Bacillus sphaericus spores by pH adjustment |
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| Authors: | C.L. Luna E.M.M.M. Rios C.E. Lopes |
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| Affiliation: | (1) Departamento de Antibióticos, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, Cidade Universitária, CEP 50.670-901 Recife PE, Brazil |
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| Abstract: | The influence of pH and hydrophobicity on the degree of flocculation and settling velocity of Bacillus sphaericus spores were investigated. The highest value of settling velocity (97.1 cm h–1) with a cell recovery of around 90% occurred at pH 3. This also gave the maximum degree of hydrophobicity. Adjustment of pH to 3 does not influence the biological activity of the product. |
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| Keywords: | Bacillus sphaericus cell aggregation flocculation hydrophobicity settling |
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