INVESTIGADORES
DEL MONACO Silvana Maria
artículos
Título:
Selective antimicrobial activity of chitosan on beer spoilage bacteria and brewing yeasts
Autor/es:
GIL, G.; DEL MÓNACO, S.; CERRUTTI, P.; GALVAGNO, M.
Revista:
BIOTECHNOLOGY LETTERS
Editorial:
Kluwer Academic Publishers
Referencias:
Lugar: Dordrecht, Netherlands; Año: 2004 vol. 26 p. 569 - 574
ISSN:
0141-5492
Resumen:
Chitosan (0.1 g l−1), assayed in a simple medium, reduced the viability of four lactic acid bacteria isolated during the beer production process by 5 logarithmic cycles, whereas activity against seven commercial brewing yeasts required up to 1 g chitosan l−1. Antimicrobial activity was inversely affected by the pH of the assay medium. In brewery wort, chitosan (0.1 g l−1) selectively inhibited bacterial growth without altering yeast viability or fermenting performance.
