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http://repositorio.ufla.br/jspui/handle/1/33980
Título: | Highly efficient production of L(+)-lactic acid using medium with potato, corn steep liquor and calcium carbonate by Lactobacillus rhamnosus ATCC 9595 |
Palavras-chave: | Lactic acid Fermentation Potato flour Corn steep liquor Response surface |
Data do documento: | 2018 |
Editor: | Brazilian Society of Chemical Engineering |
Citação: | CUNHA, M. C. da et al. Highly efficient production of L(+)-lactic acid using medium with potato, corn steep liquor and calcium carbonate by Lactobacillus rhamnosus ATCC 9595. Brazilian Journal of Chemical Engineering, São Paulo, v. 35, n. 3, p. 887-900, July/Sept. 2018. |
Resumo: | The objective of this study was to optimize the composition of the fermentation medium through a Central Composite Rotational Design (CCRD) for the production of L (+)- latic acid (LA) using Lactobacillus rhamnosus ATCC 9595 and potato, corn steep liquor (CSL) and calcium carbonate as raw materials. A CCRD with three independent variables (potato flour (PF), CSL and CaCO3 concentrations) was performed for a total of 17 treatments. Kinetic studies were conducted, and samples were taken at time intervals of 0 to 72 h. Cell count, pH, reducing sugars and LA concentrations were determined. LA productivity and yield, sugar consumption and cell growth factor were calculated. The highest concentration of LA was 183.8 g/L, with 2.553 g/L.h productivity, 94.2% yield and 96.1 % sugar consumption. |
URI: | http://repositorio.ufla.br/jspui/handle/1/33980 |
Aparece nas coleções: | DCA - Artigos publicados em periódicos |
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