Transformation kinetics of fermented milk using Lactobacillus casei (Lc1) and Streptococcus thermophilus: comparison of results with other Inocula.

Autor: Muñoz SV; Departamento de Ingeniería Molecular de Materiales,Centro de Física Aplicada y Tecnología Avanzada,Universidad Nacional Autónoma de México,Boulevard Juriquilla 3001,Santiago de Querétaro,Querétaro, 76230,México., Guerrero FQ; Universidad Central de Querétaro,Avenida 5 de Febrero No 1602,Col San Pablo,Santiago de Querétaro,Querétaro, 76320,México., Torres MG; Departamento de Química de Radiaciones y Radioquímica,Instituto de Ciencias Nucleares,Universidad Nacional Autónoma de México,Ciudad de México, 04510,México., Castro MD; Departamento de Química de Radiaciones y Radioquímica,Instituto de Ciencias Nucleares,Universidad Nacional Autónoma de México,Ciudad de México, 04510,México., Talavera RR; Departamento de Ingeniería Molecular de Materiales,Centro de Física Aplicada y Tecnología Avanzada,Universidad Nacional Autónoma de México,Boulevard Juriquilla 3001,Santiago de Querétaro,Querétaro, 76230,México.
Jazyk: angličtina
Zdroj: The Journal of dairy research [J Dairy Res] 2017 Feb; Vol. 84 (1), pp. 102-108. Date of Electronic Publication: 2016 Nov 08.
DOI: 10.1017/S0022029916000613
Abstrakt: Probiotic-based starter cultures are generally used to produce fermented milks with improved characteristics in the final product. In this study, Lactobacillus casei and Streptococcus thermophilus (Lc1-St) were used as the starter inoculum. The transformation kinetics and properties of the final product were compared with systems produced with other inocula. The Lc1-St inoculum delayed the production of lactic acid from 40 to 70 min (depending on temperature and concentration) when compared to Lactobacillus delbrueckii ssp. bulgaricus and Streptococcus thermophilus (Lb-St) and Lactobacillus johnsonii and Streptococcus thermophilus (La1-St). The Lc1-St inoculum reached the aggregation system faster (30-80 min) than Lb-St (120-210 min) and La1-St (160-220 min), however, the production of exopolysaccharides and organic phosphates was delayed as a consequence of the lack of synergy between Lc1 and St.
Databáze: MEDLINE
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