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Fırat Üniversitesi Sağlık Bilimleri Veteriner Dergisi
2019, Cilt 33, Sayı 3, Sayfa(lar) 169-175
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Assessment of Chemical Properties and Microbiological Quality of Vacuum Packaged or Unpackaged Lor (Whey) Cheese Sold in Elazig Province
Ayşe SÖNMEZ1, Gökhan Kürşad İNCİLİ2, Mehmet ÇALICIOĞLU2
1Tarım ve Orman Bakanlığı Veteriner Kontrol Enstitüsü, Elazığ, TÜRKİYE
2Fırat Üniversitesi, Veteriner Fakültesi, Besin Hijyeni ve Teknolojisi Anabilim Dalı, Elazığ, TÜRKİYE
Keywords: Chemical properties, lor cheese, microbiological quality, vacuum package

This study was carried out to determine the chemical properties and microbiological quality of lor (whey) cheeses which are sold as vacuum packaged or unpackaged in Elazığ province. For this purpose, a total of fifty samples of lor cheeses (25 unpackaged and 25 vacuum packaged) were analyzed for microbiological (total mesophilic aerobic bacteria, Lactobacillus-Leuconostoc-Pediococcus (LLP), Staphylococcus-micrococcus, coliforms, lipolytic bacteria, proteolytic bacteria, yeast and mold, E. coli) and chemical (pH, acidity, water activity (aw), fat, salt, dry matter, and ash) attributes. The value of titratable acidity (1.84±0.22 and 0.46±0.11 %g lactic acid) and the amount of salt (0.76±0.05% and 0.46±0.02%) were found significantly higher (P<0.05) in the samples of vacuum packaged than in samples of unpackaged. The levels of Lactobacillus-Leuconostoc-Pediococcus (7.13±0.18 and 5.76±0.32 log10 cfu/g), proteolitic microorganism (6.23±0.15 and 4.22±0.42 log10 cfu/g), yeast and molds (4.14±0.31 and 1.86±0.23 log10 cfu/g) were significantly higher (P<0.05) in vacuum packed group compared to unpackaged group. On the other hand, the count of E. coli was a lower in the samples of lor cheese in vacuum packaged than those of unpackaged (2.52±0.21 and 3.41±0.31 log10 cfu/g). As a result, the lor cheese, which is sold with or without vacuum packaging, may present a potential risk to public health as it contains a large number of microorganisms. Therefore, although vacuum packaging protects the product against external contamination, hygienic conditions must be ensured before packaging.

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