Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/31824 |
Resumo: | The production of propionic acid using skim serum by-products of the dairy industry was investigated, and the influence of inoculum concentration of Propionibacterium freudenreichii PS-1 and its time of inoculation for the production of propionic acid was evaluated using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii. Initially, the adjustment of propionic bacteria to higher concentrations of propionic acid was tested and kinetic parameters were determined for growth. A central composite rotational design (CCRD) with 11 experiments was carried out, using different inoculum concentrations of P. freudenreichii, which were added to the cultures of lactic bacteria at different times. The maximum specific growth rate for P. freudenreichii decreased from 0.11 to 0.03 hour-1and the growth time increased from 32h to 100h when concentration of propionic acid in lactate broth increased to 0.25%. The best result for propionic acid production was 3.78 g L-1, inoculating 5.108 CFU mL-1 of propionic bacteria after 6 h. For lactose consumption, the best conditions were inoculum concentration above 5.108 CFU mL-1 and inoculation time of P. freudenreichii after 6 hours. Therefore, it was demonstrated that skimmed whey can be used as a renewable, low-cost raw material for propionic acid production by mixed culture. |
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Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1Concentração de inóculo e tempo de inoculação para produção de ácido propiônico usando cultura de Lactobacillus helveticus e Propionibacterium freudenreichiiSkimmed wheyLactic bacteriaPropionic fermentationOrganic acidsSoro desnatadoBactérias láticasFermentação propiônicaÁcidos orgânicosThe production of propionic acid using skim serum by-products of the dairy industry was investigated, and the influence of inoculum concentration of Propionibacterium freudenreichii PS-1 and its time of inoculation for the production of propionic acid was evaluated using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii. Initially, the adjustment of propionic bacteria to higher concentrations of propionic acid was tested and kinetic parameters were determined for growth. A central composite rotational design (CCRD) with 11 experiments was carried out, using different inoculum concentrations of P. freudenreichii, which were added to the cultures of lactic bacteria at different times. The maximum specific growth rate for P. freudenreichii decreased from 0.11 to 0.03 hour-1and the growth time increased from 32h to 100h when concentration of propionic acid in lactate broth increased to 0.25%. The best result for propionic acid production was 3.78 g L-1, inoculating 5.108 CFU mL-1 of propionic bacteria after 6 h. For lactose consumption, the best conditions were inoculum concentration above 5.108 CFU mL-1 and inoculation time of P. freudenreichii after 6 hours. Therefore, it was demonstrated that skimmed whey can be used as a renewable, low-cost raw material for propionic acid production by mixed culture.Foi avaliada a influência da concentração do inóculo de P. freudenreichii PS-1e do tempo de inoculação para produção do ácido propiônico usando cultura mista de L. helveticuse Propionibacterium freudenreichii em meio contendo soro lácteo. Inicialmente, foi testada adaptação das bactérias propiônicas a diferentes concentrações de ácido propiônico e foram determinados parâmetros cinéticos de crescimento. Em seguida, foi feito delineamento composto central rotacional (DCCR) com 11 ensaios, usando diversas concentrações de inóculo de P. freudenreichii adicionados em diferentes tempos ao meio com bactéria lática. A velocidade específica máxima de crescimento de P. freudenreichii diminuiu de 0,11 para 0,03 h-1 e o tempo de crescimento aumentou de 32 para 100h aumentando-se a concentração de ácido propiônico em caldo lactato para 0,25% m v-1. O melhor resultado de ácido propiônico foi 3,78 g L-1, usando concentração de bactérias propiônicas de 5.108 UFC mL-1, inoculadas após 4h. Para consumo de lactose, as melhores condições foram concentração de inóculo acima de 5.108 UFC mL-1 e tempo de inoculação de P. freudenreichii após 6h. Comprovou-se que o soro desnatado pode ser usado como matéria prima renovável e econômica para a produção de ácido propiônico por cultura mista.Universidade Estadual de Maringá2018-11-19T12:46:20Z2018-11-19T12:46:20Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfNGOME, M. T. et al. Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1. Acta Scientiarum.Technology, Maringá, v. 39, 2017.http://repositorio.ufla.br/jspui/handle/1/31824Acta Scientiarum.Technologyreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessNgome, Moisés TomásAlves, José Guilherme Lembi FerreiraPiccoli, Roberta HilsdorfDomingo, Elisângela de CarmoPinto, Sheyla AnáliaBernal, Olga Lucía Mondragóneng2021-10-08T14:31:59Zoai:localhost:1/31824Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-10-08T14:31:59Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1 Concentração de inóculo e tempo de inoculação para produção de ácido propiônico usando cultura de Lactobacillus helveticus e Propionibacterium freudenreichii |
title |
Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1 |
spellingShingle |
Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1 Ngome, Moisés Tomás Skimmed whey Lactic bacteria Propionic fermentation Organic acids Soro desnatado Bactérias láticas Fermentação propiônica Ácidos orgânicos |
title_short |
Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1 |
title_full |
Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1 |
title_fullStr |
Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1 |
title_full_unstemmed |
Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1 |
title_sort |
Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1 |
author |
Ngome, Moisés Tomás |
author_facet |
Ngome, Moisés Tomás Alves, José Guilherme Lembi Ferreira Piccoli, Roberta Hilsdorf Domingo, Elisângela de Carmo Pinto, Sheyla Anália Bernal, Olga Lucía Mondragón |
author_role |
author |
author2 |
Alves, José Guilherme Lembi Ferreira Piccoli, Roberta Hilsdorf Domingo, Elisângela de Carmo Pinto, Sheyla Anália Bernal, Olga Lucía Mondragón |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Ngome, Moisés Tomás Alves, José Guilherme Lembi Ferreira Piccoli, Roberta Hilsdorf Domingo, Elisângela de Carmo Pinto, Sheyla Anália Bernal, Olga Lucía Mondragón |
dc.subject.por.fl_str_mv |
Skimmed whey Lactic bacteria Propionic fermentation Organic acids Soro desnatado Bactérias láticas Fermentação propiônica Ácidos orgânicos |
topic |
Skimmed whey Lactic bacteria Propionic fermentation Organic acids Soro desnatado Bactérias láticas Fermentação propiônica Ácidos orgânicos |
description |
The production of propionic acid using skim serum by-products of the dairy industry was investigated, and the influence of inoculum concentration of Propionibacterium freudenreichii PS-1 and its time of inoculation for the production of propionic acid was evaluated using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii. Initially, the adjustment of propionic bacteria to higher concentrations of propionic acid was tested and kinetic parameters were determined for growth. A central composite rotational design (CCRD) with 11 experiments was carried out, using different inoculum concentrations of P. freudenreichii, which were added to the cultures of lactic bacteria at different times. The maximum specific growth rate for P. freudenreichii decreased from 0.11 to 0.03 hour-1and the growth time increased from 32h to 100h when concentration of propionic acid in lactate broth increased to 0.25%. The best result for propionic acid production was 3.78 g L-1, inoculating 5.108 CFU mL-1 of propionic bacteria after 6 h. For lactose consumption, the best conditions were inoculum concentration above 5.108 CFU mL-1 and inoculation time of P. freudenreichii after 6 hours. Therefore, it was demonstrated that skimmed whey can be used as a renewable, low-cost raw material for propionic acid production by mixed culture. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2018-11-19T12:46:20Z 2018-11-19T12:46:20Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
NGOME, M. T. et al. Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1. Acta Scientiarum.Technology, Maringá, v. 39, 2017. http://repositorio.ufla.br/jspui/handle/1/31824 |
identifier_str_mv |
NGOME, M. T. et al. Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of Lactobacillus helveticus and Propionibacterium freudenreichii PS-1. Acta Scientiarum.Technology, Maringá, v. 39, 2017. |
url |
http://repositorio.ufla.br/jspui/handle/1/31824 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum.Technology reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835215403417600 |