Volume 77, Issue 3 pp. 853-861
Research Article

Cheese whey for production of breast milk-derived bifidobacteria: Influence of fermentation conditions on the survival to spray drying and storage

Matías L. Senovieski

Matías L. Senovieski

Instituto de Lactología Industrial (CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, Santa Fe, 3000 Argentina

Contribution: ​Investigation

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Paula A. Loyeau

Paula A. Loyeau

Área de Estudios Fisicoquímicos de Alimentos, Facultad de Ingeniería Química, Instituto de Tecnología de Alimentos (ITA), Universidad Nacional del Litoral, Santa Fe, 3000 Argentina

Contribution: ​Investigation

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Melisa Puntillo

Melisa Puntillo

Instituto de Lactología Industrial (CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, Santa Fe, 3000 Argentina

Contribution: Methodology, Supervision

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Ana Binetti

Ana Binetti

Instituto de Lactología Industrial (CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, Santa Fe, 3000 Argentina

Contribution: Conceptualization, Supervision, Resources

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Gabriel Vinderola

Corresponding Author

Gabriel Vinderola

Instituto de Lactología Industrial (CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, Santa Fe, 3000 Argentina

Author for correspondence. E-mail: [email protected]

Contribution: Conceptualization, Funding acquisition, Writing - original draft, Writing - review & editing, Project administration

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First published: 02 April 2024
Citations: 4

Abstract

Common factors influencing the survival of microbes to spray drying include microbial intrinsic resistance, properties of the carrier, inlet and outlet temperatures, and rate of feeding. In this work, cheese whey was used as both a growth medium and a carrier for spray drying of Bifidobacterium animalis subsp. lactis INL1. The growth of the strain was favoured by acid conditions, reaching higher counts when pH was not controlled during fermentation and when pH was controlled at a constant value of 5.5, compared with 6.5. Powders containing ca. 9 log order (cfu/g) of B. lactis INL1 were obtained by direct spray drying of the culture coming out of the fermenter. No differences in survival to spray drying were observed in terms of fermentation conditions. However, fermentation conditions are considered to have influenced the strain's survival along the storage. Spray drying in acid conditions was detrimental to the survival along storage.

CONFLICT OF INTEREST STATEMENT

The authors declare the present work was conducted in the absence of any conflicts of interest.

DATA AVAILABILITY STATEMENT

Data are available on request due to privacy/ethical restrictions.

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