Growth of Pediococcus acidilactici on sugar cane blackstrap molasses
Rev. microbiol
; 29(3): 202-7, jul.-set. 1998. tab, graf
Article
em En
| LILACS
| ID: lil-236209
Biblioteca responsável:
BR32.1
RESUMO
Pediococcus acidilactici (IL01) has grown in MRS (Man, Rogosa and Sharpe) broth modified by substitution of glucose by 2.0(per cent) (MRS-2), 3.0(per cent) (MRS-3), 4.0(per cent) (MRS-4) and 5.0 (per cent) (MRS-5) sugar cane blackstrap molasses. The highest acid production was obtained in MRS-5 broth maintained at a constant pH of 5.0. The higest biomass production was obtained when P. acilactici was grown in MRS-5 broth at initial pH6.5, while productivity was higher in MRS-2 broth (28.16per cent). When the MRS-2broth was utilized at initial pH 6.5 for a 20-hour fermentation period, the highest growth rate (dx/dt) was found in a period of 8 to 16 hours (0.290 g cells/L.h), while the specific growth rate (µ) was 0.175 (h-1) for that period, differently from the 0,441 (h-1) obtained for the period comprising the 4th to the 12th hour. The growth in MRS broth was 5.08(per cent) (2.95g/1) higher than in MRS-2 broth (2.80 g/1). The data obtained have shown that P. acidilactici has had a significant growth in molasses as the main carbon source, and that it is possible to substitute MRS glucose by this carbon source with the purpose of obtaining a more economical growth medium for the potential large scale productions.
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LILACS
Assunto principal:
Pediococcus
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Melaço
Idioma:
En
Revista:
Rev. microbiol
Assunto da revista:
MICROBIOLOGIA
Ano de publicação:
1998
Tipo de documento:
Article