title: Fresh-cut pineapple as a new carrier of probiotic lactic acid bacteria.
abstract: Due to the increasing interest for healthy foods, the feasibility of using fresh-cut fruits to vehicle probiotic microorganisms is arising scientific interest. With this aim, the survival of probiotic lactic acid bacteria, belonging to Lactobacillus plantarum and Lactobacillus fermentum species, was monitored on artificially inoculated pineapple pieces throughout storage. The main nutritional, physicochemical, and sensorial parameters of minimally processed pineapples were monitored. Finally, probiotic Lactobacillus were further investigated for their antagonistic effect against Listeria monocytogenes and Escherichia coli O157:H7 on pineapple plugs. Our results show that at eight days of storage, the concentration of L. plantarum and L. fermentum on pineapples pieces ranged between 7.3 and 6.3 log cfu g(-1), respectively, without affecting the final quality of the fresh-cut pineapple. The antagonistic assays indicated that L. plantarum was able to inhibit the growth of both pathogens, while L. fermentum was effective only against L. monocytogenes. This study suggests that both L. plantarum and L. fermentum could be successfully applied during processing of fresh-cut pineapples, contributing at the same time to inducing a protective effect against relevant foodborne pathogens.
authors.affiliation: Department of Agricultural, Food and Environmental Science (SAFE), University of Foggia, Via Napoli 25, 71122 Foggia, Italy ; Promis Biotech s.r.l., Via Napoli 25, 71122 Foggia, Italy.
authors.forename: Pasquale
authors.initials: P
authors.lastname: Russo
authors.affiliation: Department of Agricultural, Food and Environmental Science (SAFE), University of Foggia, Via Napoli 25, 71122 Foggia, Italy.
authors.forename: Maria Lucia Valeria
authors.initials: ML
authors.lastname: de Chiara
authors.affiliation: Department of Agricultural, Food and Environmental Science (SAFE), University of Foggia, Via Napoli 25, 71122 Foggia, Italy.
authors.forename: Anna
authors.initials: A
authors.lastname: Vernile
authors.affiliation: Department of Agricultural, Food and Environmental Science (SAFE), University of Foggia, Via Napoli 25, 71122 Foggia, Italy.
authors.forename: Maria Luisa
authors.initials: ML
authors.lastname: Amodio
authors.affiliation: Department of Agricultural, Food and Environmental Science (SAFE), University of Foggia, Via Napoli 25, 71122 Foggia, Italy.
authors.forename: Mattia Pia
authors.initials: MP
authors.lastname: Arena
authors.affiliation: Department of Agricultural, Food and Environmental Science (SAFE), University of Foggia, Via Napoli 25, 71122 Foggia, Italy ; Promis Biotech s.r.l., Via Napoli 25, 71122 Foggia, Italy.
authors.forename: Vittorio
authors.initials: V
authors.lastname: Capozzi
authors.affiliation: Department of Agricultural, Food and Environmental Science (SAFE), University of Foggia, Via Napoli 25, 71122 Foggia, Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Massa
authors.affiliation: Department of Agricultural, Food and Environmental Science (SAFE), University of Foggia, Via Napoli 25, 71122 Foggia, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Spano
mesh_terms: D031230:Ananas / Q000382:microbiology*; D019453:Escherichia coli O157 / Q000187:drug effects; D005516:Food Microbiology; D006801:Humans; D019344:Lactic Acid / Q000008:administration & dosage / Q000378:metabolism; D052197:Limosilactobacillus fermentum / Q000254:growth & development*; D048191:Lactiplantibacillus plantarum / Q000254:growth & development*; D008089:Listeria monocytogenes / Q000187:drug effects; D019936:Probiotics / Q000008:administration & dosage*
chemical_list: D019344:Lactic Acid
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