INLAIN   20354
INSTITUTO DE LACTOLOGIA INDUSTRIAL
Unidad Ejecutora - UE
artículos
Título:
Suitability of high pressure-homogeneized milk for the production of probiotic fermented milk containing Lactobacillus casei and lactobacillus acidophilus
Autor/es:
F. PATRIGNANI; P. BURNS; D. SERRAZANETTI; G. VINDEROLA; J. REINHEIMER; R. LANCIOTTI; M. E. GUERZONI
Revista:
Journal of Dairy Research
Editorial:
Cambridge University Press
Referencias:
Lugar: Cambridge; Año: 2008
ISSN:
0022-0299
Resumen:
High pressure homogenization (HPH) is one of the most promising alternatives to traditional thermal treatment for food preservation and diversification. In order to evaluate its potential for the production of fermented milks carrying probiotic bacteria, four types of fermented milks were manufactured from HPH treated and heat treated (HT) milk with and without added probiotics. Microbiological, physicochemical and organoleptic analyses were carried out during the refrigerated period (35 d at 4 8C). HPH application to milk did not modify the viability of the probiotic cultures but did increase the cell loads of the starter cultures (ca. 1 log order) compared with traditional products. The coagula from HPH-milk was significantly more compacted (P<0.05) (higher firmness) than that obtained with HT-milk, and it had the highest values of consistency, cohesiveness and viscosity indexes compared with fermented milks produced without HPH treatment. All the samples received high sensory analysis scores for each descriptor considered. HPH treatment of milk can potentially diversify the market for probiotic fermented milks, especially in terms of texture parameters.
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