Food Engineering / Gıda Mühendisliği

Permanent URI for this collectionhttps://hdl.handle.net/11147/12

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  • Article
    Citation - WoS: 2
    Citation - Scopus: 4
    Genotyping of Various Arcobacter Species Isolated From Domestic Geese by Randomly Amplified Polymorphic Dna (rapd) Analysis
    (M. & H. Schaper, 2008) Atabay, Halil İbrahim; Ünver, Ahmet; Otlu, Salih; Kalaycıoğlu, Atila Taner
    The present study was undertaken to genotype Arcobacter (A.) butzleri, A. cryaerophilus and A. skirrowii isolates from domestic geese from three different flocks in Turkey. Fifteen Arcobacter isolates were analysed to determine the RAPD profiles based on the amplified DNA fragment patterns using a universal primer for genotyping. 7 A. cryaerophilus, 2 A. butzleri and 6 A. skirrowii isolates produced 6, 2 and 3 distinct profiles, respectively. The isolates of the same patterns originated from the same flocks. The findings of the present study may support previous reports of the existence of a large degree of heterogeneity among Arcobacter isolates. Observation of such levels of genetic diversity may suggest that there are multiple contamination sources in the environment and/or the determined genotypes may have undergone genetic rearrangements. This first report of genotyping of various Arcobacter species isolated from healthy geese is expected to improve the understanding of the ecology and epidemiology of this emerging pathogen.
  • Article
    Citation - WoS: 8
    Citation - Scopus: 12
    Odor Evaluation of Shrimp Treated With Different Chemicals Using an Electronic Nose and a Sensory Panel
    (Taylor and Francis Ltd., 2007) Luzuriaga, Diego A.; Korel, Figen; Balaban, Murat Ömer
    An electronic nose with 12 conducting polymer sensors was used to measure odors of raw shrimp treated with different chemicals. Headless shell-on pink shrimp (Pandalus jordani) were treated with bleach (0, 25, 50, 100 and 200 ppm), phosphates (0, 2, 4 and 6% w/v) and sulfites (0, 0.75, 1.25 and 2% w/v) and stored at 2°C for 48 hours. Odors were evaluated by sensory panels and an electronic nose. Aerobic plate counts were performed. Discriminant function analysis was used as the pattern recognition technique to differentiate samples based on odors. Results showed that the electronic nose could discriminate differences in odor due to chemicals present in shrimp. The correct classification rates for bleach, phosphate and sulfite treated shrimp were 92.7, 95.8, and 99.2%, respectively.