title: Study of microbiological quality of controlled atmosphere packaged 'Ambrunés' sweet cherries and subsequent shelf-life.
abstract: The objectives of this study were to evaluate the effect of different controlled atmospheres, containing 3% O2+10% CO2, 5% O2+10% CO2 and 8% O2+10% CO2, on changes in microbial population of 'Ambrunés' sweet cherries throughout storage during 30days and subsequent shelf-life, as well as to identify the main genera of yeast, mould, lactic acid bacteria, Staphylococcus spp., Pseudomonas spp., Enterobacteriaceae spp., and coliforms. The results indicated that controlled atmospheres with 5% O2+10% CO2 and 8% O2+10% CO2 were highly effective to control the growth of mesophilic aerobic bacteria, psychrotrophs, Pseudomonas spp., yeasts, and moulds after 15days of storage, showing, in the case of yeasts and moulds, counts that ranged between <1 and 1.75logCFU/g. The genera of yeasts, moulds, lactic acid bacteria, Enterobacteriaceae spp., and coliforms identified were Aureobasidium spp., Penicillium spp., Leuconostoc spp., and Rahnella spp., respectively. In addition, the genera Staphylococcus spp. and Pseudomonas spp. were also identified. On the other hand, cherries of Stage 3 ripening presented the highest counts for all microbial groups.
authors.affiliation: Hortofruticultura, Centro de investigación Finca La Orden-Valdesequera, Gobierno de Extremadura, Autovía Madrid-Lisboa s/n, 06187 Guadajira, Badajoz, Spain.
authors.forename: Manuel Joaquín
authors.initials: MJ
authors.lastname: Serradilla
authors.forename: María del Carmen
authors.initials: Mdel C
authors.lastname: Villalobos
authors.forename: Alejandro
authors.initials: A
authors.lastname: Hernández
authors.forename: Alberto
authors.initials: A
authors.lastname: Martín
authors.forename: Mercedes
authors.initials: M
authors.lastname: Lozano
authors.forename: María de Guía
authors.initials: Mde G
authors.lastname: Córdoba
mesh_terms: D001272:Atmosphere / Q000737:chemistry*; D058491:Bacterial Load; D018407:Bacterial Physiological Phenomena; D002245:Carbon Dioxide; D015169:Colony Count, Microbial; D005516:Food Microbiology; D018857:Food Packaging; D005658:Fungi / Q000502:physiology; D006801:Humans; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen; D010100:Oxygen; D027861:Prunus / Q000382:microbiology*; D013997:Time Factors
chemical_list: D002245:Carbon Dioxide; D009584:Nitrogen; D010100:Oxygen
keywords: Controlled atmospheres; Fruit quality; Microbial quality; Postharvest storage; Ripening stage; Sweet cherries