molecular characterisation and biomass and metabolite production of lactobacillus reuteri lpb p01-001: a potential probiotic
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ID: 193350
2012
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Abstract
Lactobacillus reuteri LPB P01-001 was isolated from the gastrointestinal tract of wild swine and was characterised by biochemical testing and sequencing of gene 16S rRNA. A simple and low-cost culture medium based on cane sugar (2.5% p/v) and yeast extract (1% p/v) was used in the production of this probiotic. The fermentative conditions were a) pH control at 6.5 and b) no pH control; both were set at 37°C in a 12 L slightly stirred tank bioreactor. Fermentation parameters such as the specific growth rate, productivity and yield of biomass, lactic and acetic acid levels were determined. L. reuteri LPB P01-001 behaves as an aciduric bacteria because it grows better in a low pH medium without pH control. However, the lactic acid production yield was practically half (9.22 g.L-1) of that obtained under a constant pH of 6.5, which reached 30.5 g.L-1 after 28 hours of fermentation. The acetic acid production was also higher under pH-controlled fermentation, reaching 10.09 g.L-1 after 28 hours of fermentation. These parameters may raise the interest of those committed to the efficient production of a probiotic agent for swine.
| Reference Key |
pancheniak2012brazilianmolecular
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|---|---|
| Authors | ;Elizete de F. R. Pancheniak;Maike T. Maziero;José A. Rodriguez-León;José L. Parada;Michele R. Spier;Carlos R. Soccol |
| Journal | ieee software |
| Year | 2012 |
| DOI |
10.1590/S1517-83822012000100015
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| URL | |
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