Low-Dose Electron-Beam Irradiation for the Improvement of Biofilm Formation by Probiotic Lactobacilli

Autor: Marine H. Balayan, Astghik Z. Pepoyan, Samvel Galstyan, Anahit M. Manvelyan, Bagrat Grigoryan, Michael L. Chikindas, Vardan V. Tsaturyan
Rok vydání: 2019
Předmět:
Zdroj: Probiotics and Antimicrobial Proteins. 12:667-671
ISSN: 1867-1314
1867-1306
Popis: The effects of 50-150 gray electron-beam irradiation on the biofilm-formation ability and cell surface hydrophobicity of the commercial strain, Lactobacillus acidophilus DDS®-1, from Lacto-G (a marketed synbiotic formulation) and the putative probiotic, L. rhamnosus Vahe, were evaluated. No significant changes in cell surface hydrophobicity were found after irradiation, while increases in biofilm-formation abilities were documented for both investigated microorganisms 0.22 ± 0.03 vs. 0.149 ± 0.02 (L. rhamnosus Vahe, 150 Gy) and 0.218 ± 0.021 vs. 0.17 ± 0.012 (L. acidophilus DDS®-1, 150 Gy). Given this, the use of electron-beam irradiation (50-100 Gy) for the treatment of L. rhamnosus Vahe and L. acidophilus DDS®-1 cells may be considered in product sterilization, quality improvement, and packaging practices.
Databáze: OpenAIRE