title: Biopreservation of refrigerated and vacuum-packed Dicentrarchus labrax by lactic acid bacteria.
abstract: Two lactic acid bacteria (LAB) were selected from 100 LAB isolated from various sea products to examine their use in Dicentrarchus labrax preservation. The isolates, tentatively named strain nr 3 and 7, were identified as Lactobacillus plantarum and L. pentosus, respectively. They showed antagonistic activity against psychrotroph, pathogenic, and coliform bacteria. The antagonistic activity of strain 3 was suggested to be by bacteriocins since activity was abolished by protease treatment, while that of strain 7 was due to the effect of pH decrease caused by the produced organic acids. Their use prevented total volatile basic nitrogen contents (TVB-N) and trimethylamine (TMA) to some extent, suggesting that inoculation could extend the period of storage.
authors.affiliation: Center of Molecular Biosciences, Univ. of the Ryukyus, Nishihara-cho, Okinawa, 903-0213, Japan.
authors.forename: Leila
authors.initials: L
authors.lastname: El Bassi
authors.forename: Mnasser
authors.initials: M
authors.lastname: Hassouna
authors.forename: Naoya
authors.initials: N
authors.lastname: Shinzato
authors.forename: Toru
authors.initials: T
authors.lastname: Matsui
mesh_terms: D016980:Aeromonas hydrophila / Q000254:growth & development; D000818:Animals; D000898:Antibiosis; D018407:Bacterial Physiological Phenomena; D001430:Bacteriocins / Q000378:metabolism; D001492:Bass / Q000382:microbiology; D001709:Biotechnology; D015169:Colony Count, Microbial; D004755:Enterobacteriaceae / Q000254:growth & development; D018857:Food Packaging / Q000379:methods*; D005519:Food Preservation / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D007778:Lactobacillus / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D048191:Lactiplantibacillus plantarum / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D008087:Listeria / Q000254:growth & development; D008744:Methylamines / Q000032:analysis; D009584:Nitrogen / Q000032:analysis; D011549:Pseudomonas / Q000254:growth & development; D012034:Refrigeration; D055049:Salt Tolerance; D017747:Seafood / Q000382:microbiology; D013211:Staphylococcus aureus / Q000254:growth & development; D014618:Vacuum; D055549:Volatile Organic Compounds / Q000032:analysis
chemical_list: D001430:Bacteriocins; D008744:Methylamines; D055549:Volatile Organic Compounds; C023336:trimethylamine; D009584:Nitrogen