Effect of freeze drying process on some properties of Streptococcus thermophilus isolated from dairy products

The present investigation represents the effect of freeze drying on some properties as acid and bile tolerance of Streptococcus thermophilus MTCC 1938 culture isolated from dairy products. The cell paste obtained from milk based medium was freeze dried with a pressure of 50–100 mtorr for 24h at -40°...

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Detalles Bibliográficos
Autores principales: Selwal, Krishan K., Selwal, Manjit K., Gandhi, D.N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sociedade Brasileira de Microbiologia 2011
Materias:
Food Microbiology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3768728/
https://www.ncbi.nlm.nih.gov/pubmed/24031784
http://dx.doi.org/10.1590/S1517-838220110004000037
Descripción
Sumario:The present investigation represents the effect of freeze drying on some properties as acid and bile tolerance of Streptococcus thermophilus MTCC 1938 culture isolated from dairy products. The cell paste obtained from milk based medium was freeze dried with a pressure of 50–100 mtorr for 24h at -40°C. Acid and bile tolerance test exhibited 3.8–4.9 and 3.2–3.8 log counts reduction after freeze drying respectively.

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