Technological performance of spontaneous phage-resistant derivatives of Leuconostoc mesenteroides and Leuconostoc pseudomesenteroides during milk fermentation

PUJATO, S. A.; QUIBERON, A.; GUGLIELMOTTI, D. M.

INTERNATIONAL DAIRY JOURNAL

ELSEVIER SCI LTD

Lugar: Amsterdam; Año: 2018 vol. 78 p. 46 - 52

0958-6946

A total of 142 presumptive phage-resistant derivatives were isolated from six commercial phage-sensitive Leuconostoc mesenteroides and Leuconostoc pseudomesenteroides strains, using six phages either individually or in combination (cocktail). Genetic diversity (RAPD?PCR), efficiency of plaquing (EOP), phage-resistance stability, lysogeny, adsorption rates and technological performance were determined for the 89 confirmed phage-resistant variants. Derivatives showed very low EOP values (