Biofilm formation under laminar flow conditions of yeast isolated from an apple juice processing plant

BRUGNONI, L. I.; CUBITTO, M. A.; LOZANO J. E.

JOURNAL OF FOOD PROCESS ENGINEERING

WILEY-BLACKWELL

Lugar: HOBOKEN, NJ, USA; Año: 2011 vol. 34 p. 49 - 66

0145-8876

The attachment of microorganisms to a surface is a critical step of biofilm fouling in food processing equipment. The goal of this research was to determine the potential of four yeast strains isolated from an apple juice processing plant, to initiate biofilm formation on stainless steel surfaces (SSS) both under static and laminar flow conditions. The isolated yeasts were Kluyveromyces marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. Kluyveromyces marxianus, Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa., Candida krusei, Zygosaccharomyces sp. and Rhodotorula mucilaginosa. Micro-colonies, indicating the starting of biofilm formation, were observed after 16 h. Cell numbers per SSS significantly changed with yeast strain and time. Results seem to indicate that adhesion and colonization of the studied yeast under laminar flow conditions differed from that observed under static conditions. Particularly, when adhesion of K. marxianus, C. krusei andK. marxianus, C. krusei and R. mucilaginosa was reduced one log cycle, Zygosaccharomyces sp. increased 0.5 log units as compared with the assays made under static conditions. 0.5 log units as compared with the assays made under static conditions. 0.5 log units as compared with the assays made under static conditions. 0.5 log units as compared with the assays made under static conditions. 0.5 log units as compared with the assays made under static conditions. 0.5 log units as compared with the assays made under static conditions. 0.5 log units as compared with the assays made under static conditions. 0.5 log units as compared with the assays made under static conditions. 0.5 log units as compared with the assays made under static conditions. was reduced one log cycle, Zygosaccharomyces sp. increased 0.5 log units as compared with the assays made under static conditions.