The purpose of this work was to assess the quality of pacu (Piaractus mesopotamicus) and tambaqui (Colossoma macropomum) gutted and stored on ice for a period of 19 days. Color, texture, pH, acid value, peroxide value, thiobarbituric acid reactive substances, total volatile bases and counts of aerobic mesophilic heterotrophic and psychrotrophic bacteria assessments were performed in the meat of...

Representative food contact and nonfood contact surfaces in two mid-sized, fresh-cut processing facilities were sampled for microbiological analyses after routine daily sanitization. Mesophilic and psychrotrophic bacteria on the sampled surfaces were isolated by plating on nonselective bacterial media. Alternatively, bacteria were isolated after an incubation period that allowed the formation o...

The global amino acid compositions as deduced from the complete genomic sequences of six thermophilic archaea, two thermophilic bacteria, 17 mesophilic bacteria and two eukaryotic species were analysed by hierarchical clustering and principal components analysis. Both methods showed an influence of several factors on amino acid composition. Although GC content has a dominant effect, thermophili...

The effects of essential oils (EOs) of oregano and nutmeg with and without commercial emulsifier/stabilizer compound (E/S) on the microbial quality of ready-to-cook barbecued chicken were evaluated. Barbecued chicken was traditionally prepared. 3 μL/g and 10 mg/g of EOs and/or E/S were then added to the barbecued chicken, respectively. The samples were stored at 3°C for 144 h, 8 and 20ºC for 72...

Çamur cheese is a traditional fermented dairy product produced in the Tire district of İzmir, Turkey. In this study, microbiological quality samples purchased from local markets was determined. The cheeses with and without addition Bifidobacterium animalis ssp. lactis were laboratory. All (PC), lab-produced (LPC) lab-produced-functional (LPFC) stored at 4°C for 30 days which then analyzed perio...

Novel strains of obligately chemolithoautotrophic, sulfur-oxidizing bacteria have been isolated from various depths of Lake Fryxell, Antarctica. Physiological, morphological, and phylogenetic analyses showed these strains to be related to mesophilic Thiobacillus species, such as T. thioparus. However, the psychrotolerant Antarctic isolates showed an adaptation to cold temperatures and thus shou...