首页|Fermentative behavior of native lactobacilli in goat milk and their survival under in vitro simulated gastrointestinal conditions

Fermentative behavior of native lactobacilli in goat milk and their survival under in vitro simulated gastrointestinal conditions

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  • NSTL
  • Elsevier
In this study, goat fermented milk trials were prepared with six potentially probiotic autochthonous cultures Lactobacillus rhamnosus EM1107, Lactobacillus plantarum (CNPC001, CNPC002, CNPC003 and CNPC004) and Lactobacillus mucosae CNPC007in the presence and absence of a starter culture (Streptococcus thermophilus, ST) and in the presence and absence of inulin (IN) or oligofructose (FOS), consisting of 36 trials. The fermented milk without the starter culture only achieved a lactic acid content above 0.6 g/100 g after 24 h, thus requiring the presence of ST culture for a faster acidification. After the fermentation, three trials with the best fermentative performance and visual firmness (EM1107 + ST + IN, CNPC003 + ST + IN and CNPC007 + ST + IN) were exposed to simulated conditions of the gastrointestinal tract (GIT) in vitro. All fermented milk, with Lactobacillus spp. population above 6 log CFU/g before GIT simulation, showed the highest viability losses in the gastric step. In fermented milk with Streptococcus thermophilus plus inulin, L. rhamnosus and L. mucosae performed well in the GIT assay, achieving a viability between 6.50 - 7.24 and 6.50-7.60 log CFU/g in the enteric stage, respectively. Therefore, the combination of EM1107 or CNPC007 strains with S. thermophilus and inulin is promising in the production of goat dairy products.

Fermented goat milkProbiotic potentialLactobacillus sppPrebioticIn vitro gastrointestinal resistance

Pires de Oliveira Galdino, Isadora Kaline Camelo、Oliveira, Marcia Muniz、Oliveira, Aryanne Teixeira、da Silva, Gabriel Monteiro、Olbrich dos Santos, Karina Maria、do Egito, Antonio Silvio、Alonso Buriti, Flavia Carolina、de Oliveira, Tiago Almeida

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Univ Estadual Paraiba, Dept Farm, R Juvencio Arruda S-N, BR-58429600 Campina Grande, Paraiba, Brazil

Univ Estadual Paraiba, Dept Quim, R Juvencio Arruda S-N, BR-58429600 Campina Grande, Paraiba, Brazil

Embrapa Agroind Alimentos, Av Amer 29501, BR-23020470 Rio De Janeiro, RJ, Brazil

Embrapa Caprinos & Ovinos, Nucleo Reg Nordeste, R Osvaldo Cruz 1143, BR-58428095 Campina Grande, Paraiba, Brazil

Univ Estadual Paraiba, Dept Estat, R Juvencio Arruda S-N, BR-58429600 Campina Grande, Paraiba, Brazil

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2021

10.1016/j.lwt.2020.109905

LWT-Food Science & Technology

LWT-Food Science & Technology

ISSN：0023-6438
年,卷(期)：2021.135
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