Manufacturing of fermented goat milk with a mixed starter culture of Bifidobacterium animalis and Lactobacillus acidophilus in a controlled bioreactor

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Kongo, JM (Autor) Outra; Gomes, AM (Autor) Outra; F. Xavier Malcata (Autor) Outra

Revista

Título: Letters in Applied Microbiology

Vol. 42

Páginas: 595-599

ISSN: 0266-8254

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 24 Citações

Scopus - 30 Citações

Outras Informações

ID Authenticus: P-004-KJ0

DOI: 10.1111/j.1472-765x.2006.01882.x

Abstract (EN): Aims: This work was undertaken to study the feasibility and the characteristics of a fermented product made of goat milk, using a mixed starter culture of Bifidobacterium animalis and Lactobacillus acidophilus under controlled conditions, and to determine their survival in the fermented milk during refrigerated storage. Methods and Results: Goat milk was inoculated with Lact. acidophilus and Bif. animalis mixed starter, fermented in a glass bioreactor with controlled temperature (37 degrees C) and anaerobiosis, and monitored for growth and acidification. The fermented milk was then stored for 10 days under refrigeration, and monitored daily for starter microflora survival and pH changes. Lact. acidophilus viable counts reached a maximum of 7.1 x 10(8) colony-forming units (CFU) ml(-1), and Bif. animalis a maximum of 6.3 x 10(7) CFU ml(-1) by 20 h of fermentation. During refrigerated storage, both strains exhibited a good survival, with viable numbers remaining essentially constant throughout the experiment, whereas the pH of the fermented milk dropped slightly. Conclusions: Mixed cultures of Bif. animalis and Lact. acidophilus may be used to produce fermented goat milk with high counts of both probiotic strains. Significance and Impact of the Study: Goat milk fermented with Bif. animalis and Lact. acidophilus can be manufactured as an alternative probiotic dairy product.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5