Electrohydrodynamic drying of probiotics

Panagiota Dima, Giedrius Gulbinas, Peter R. Stubbe, Ana C. Mendes*, Ioannis S. Chronakis*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Drying and moisture content is known to influence long-term storage stability of probiotics. In this study, electrohydrodynamic drying (EHD) of probiotics using ionic wind was investigated. The EHD drying process was found to be dependent on several parameters such as polarity and voltage of the electric field, collector type, surrounding temperature and gas, and use of excipient. By using a moving mesh flat electrode collector to facilitate the airflow during EHD processing, the water evaporation and cell viability were 76% and 61%, respectively. Moreover, comparison of the EHD drying process with the freeze-drying, reveals that the survival of probiotics and the water evaporation rates were similar, as well as the surface properties of the cells (zeta potential and hydrophobicity).
Original languageEnglish
Article number103201
JournalInnovative Food Science and Emerging Technologies
Volume82
Number of pages10
ISSN1466-8564
DOIs
Publication statusPublished - 2022

Keywords

  • Drying
  • Electric fields
  • Bacteria
  • Bifidobacterium

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