Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/50927
Title: Microencapsulation by spray drying of coffee epiphytic yeasts Saccharomyces cerevisiae CCMA 0543 and Torulaspora delbrueckii CCMA 0684
Keywords: Starter culture
Maltodextrin
Maltose
Sucrose
Spray dryer
Cultura inicial
Maltodextrina
Issue Date: 2022
Publisher: Springer
Citation: MARTINS, P. M. M. et al. Microencapsulation by spray drying of coffee epiphytic yeasts Saccharomyces cerevisiae CCMA 0543 and Torulaspora delbrueckii CCMA 0684. Brazilian Journal of Microbiology, São Paulo, v. 53, p. 1565-1576, Sept. 2022. DOI: 10.1007/s42770-022-00776-4.
Abstract: The objective of this work was to evaluate the microencapsulation feasibility of Saccharomyces cerevisiae CCMA 0543 and Torulaspora delbrueckii CCMA 0684 in three different compositions of wall material by spray-dryer. The yeasts (109 CFU mL−1) were microencapsulated separately using maltodextrin (15%), maltodextrin (15%) with sucrose (2%), or maltose (2%) as wall material. The viability was evaluated for 6 months at two different temperatures (7 and 25 °C). The yield, cell viability after spray drying, and characterization of the microcapsules were performed. Results indicate that cell viability ranged between 94.06 and 97.97%. After 6 months, both yeasts stored at 7 °C and 25 °C presented 107 and 102 CFU mL−1, respectively. Regarding Fourier-transform infrared spectroscopy analysis, all microencapsulated yeasts presented typical spectra footprints of maltodextrin. After 6 months of storage, S. cerevisiae CCMA 0543 obtained a 10.8% increase in cell viability using maltodextrin with maltose as wall material compared to maltodextrin and maltodextrin with sucrose. However, T. delbrueckii CCMA 0684 obtained a 13.5% increase in cell viability using only maltodextrin. The study showed that maltodextrin as a wall material was efficient in the microencapsulation of yeasts. It is possible to assume that maltose incorporation increased the cell viability of S. cerevisiae CCMA 0543 during storage.
URI: https://doi.org/10.1007/s42770-022-00776-4
http://repositorio.ufla.br/jspui/handle/1/50927
Appears in Collections:DBI - Artigos publicados em periódicos

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