Biopreservation of fresh-cut pear using Lactobacillus rhamnosus GG and effect on quality and volatile compounds
Visualitza/Obre
Autor/a
Iglesias, M.B.
Echeverría, G.
Viñas, I.
López, M.L.
Abadias, M.
Data de publicació
2017-09-18ISSN
0023-6438
Resum
In recent years, the consumption of minimally processed fruit has increased. However, unfortunately,
these products could be an appropriate vehicle for the transmission of foodborne pathogens. In this
study, the antagonistic capacity of the probiotic strain Lactobacillus rhamnosus GG against a cocktail of 5
serovars of Salmonella and 5 serovars of Listeria monocytogenes on fresh-cut pear at conditions simulating
commercial application was assessed. Moreover, its effect on fruit quality, particularly on the volatile
profile, was determined, during 9 days of storage at 5 C. L. monocytogenes population was reduced by
approximately 1.8 log-units when co-inoculated with L. rhamnosus GG. However, no effect was observed
in Salmonella. Fruit quality (soluble solids content and titratable acidity) did not change when the probiotic was present. A total of 48 volatile compounds were identified using gas chromatography. Twelve of
the compounds allowed to discriminate L. rhamnosus GG-treated and untreated pears. Considering their
odour descriptors, their increases could be positive in the flavour perception of L. rhamnosus GG-treated
pear. The probiotic was able to control L. monocytogenes population on fresh-cut pear, which could be a
vehicle of probiotic microorganisms as quality of fruit was not affected when the probiotic was present
Tipus de document
Article
Versió del document
Versió acceptada
Llengua
English
Matèries (CDU)
663/664 - Aliments i nutrició. Enologia. Olis. Greixos
Pàgines
32
Publicat per
Elsevier
Publicat a
LWT - Food Science and Technology
Citació
Iglesias, M.B., G. Echeverría, I. Viñas, M.L. López, and M. Abadias. 2018. "Biopreservation Of Fresh-Cut Pear Using Lactobacillus Rhamnosus GG And Effect On Quality And Volatile Compounds". LWT 87: 581-588. Elsevier BV. doi:10.1016/j.lwt.2017.09.025.
Número de l'acord de la subvenció
MINECO/Programa Nacional de Proyectos de Investigación Fundamental/AGL 2012-38671/ES/EFECTO DEL MANEJO POSCOSECHA EN LA CALIDAD MICROBIOLOGICA, NUTRICIONAL Y SENSORIAL DE PERA 'CONFERENCE' ENTERA Y MINIMAMENTE PROCESADA/
Programa
Postcollita
Aquest element apareix en la col·lecció o col·leccions següent(s)
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