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  • Title: Microbial quality and presence of moulds in Kuflu cheese.
    Author: Hayaloglu AA, Kirbag S.
    Journal: Int J Food Microbiol; 2007 Apr 20; 115(3):376-80. PubMed ID: 17258341.
    Abstract:
    The chemical and microbial qualities, including fungal flora, of 30 samples of Kuflu cheese randomly purchased from different markets in Turkey were investigated. The gross composition of the cheese samples ranged between 37.65-53.65% moisture, 6.21-40.09% fat-in-dry matter, 4.70-10.07% salt-in-moisture and 26.18-44.85% protein. The mean pH value of the cheeses was 6.29+/-0.28 and pH values ranged from 5.52 to 7.22. Variations between the samples in terms of their gross composition suggested a lack of quality standards in cheesemilk, cheesemaking procedure and ripening conditions. The levels of main microbial groups including total mesophilic and coliform bacteria, yeasts and moulds and the presence of some potentially pathogenic microorganisms (E. coli, Salmonella spp. and Staphylococcus aureus) were determined. The high numbers of all microbial groups and presence of potentially pathogenic organisms in the cheese samples suggested that the production and maturation of Kuflu cheese should be improved by better hygiene. Moulds at the cheese surface were isolated and identified. A total of 24 different mould species were detected and the genus most frequently isolated was Penicillium spp. which represented 70.25% of total isolates. Penicillium commune, P. roqueforti and P. verrucosum were the most abundant species in the cheeses sampled. The other dominant fungal groups were Geotrichum candidum, Penicillium expansum and P. chrysogenum. Other genera isolated from the cheese were Acremonium, Alternaria, Aspergillus, Cladosporium, Geotrichum, Mucor, Rhizopus and Trichoderma. The potentially toxigenic species, including some Penicillum spp. and Aspergillus flavus, were also detected.
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