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Biosynthesis and ultrasonic degradation of bacterial poly(gamma-glutamic acid)
G Pérez-Camero1, F Congregado, J J Bou
1Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain.
Biotechnology and Bioengineering
|April 1, 1999
Abstract:
A study of the production of poly(gamma-glutamic acid) (PGGA) by Bacillus licheniformis NCIMB 11709 grown on medium E in shake flasks at 30 degrees C is reported. The enantiomeric composition of PGGA was found to be highly sensitive to the concentration of Mn++, especially when the ion is present in small amounts (