ISPARTA'DA ÜRETİLEN EŞEK SÜTÜNÜN KİMYASAL VE MİKROBİYOLOJİK ÖZELLİKLERİNİN BELİRLENMESİ

Bu çalışmada 13 adet eşek sütünün kimyasal özelliklerinden kuru madde (%), yağ (%), pH ve titrasyonasitliği (?SH) değerleri belirlenmiştir. Mikrobiyolojik analizlerden toplam aerobik mezofil bakteri(TAMB), laktik asit bakterileri (LAB), koliform grup bakteri, enterokok, stafilokok/ mikrokok veStaphylococcus aureus analizleri gerçekleştirilmiştir. Eşek sütünün protein profili Sodyum DodesilSulfat Poliakrilamid Jel Elektroforezi (SDS-PAGE) yöntemi ile belirlenmiştir. Eşek sütlerinde pH, titrasyonasitliği, kuru madde ve yağ değerleri sırasıyla 7.16-7.62, 2.0-3.5, 8.42-9.82, 0.40-0.95 aralıklarındadeğişim göstermiştir. Örneklerin toplam mezofil aerob bakteri sayısı 3.12-7.48 log kob/mL, laktobasilve laktokok sayısı 3.35-5.58 log kob/mL, 4.3-6.93 log kob/mL, enterokok 3.55-5.01 log kob/mL, koliformgrup bakteri sayısı 3.51-6.45 log kob/mL, stafilokok/mikrokok sayısı 3.53-6.31 log kob/mL olaraksaptanmıştır. Tüm süt örneklerinde Staphylococcus aureus'a rastlanmamıştır.

DETERMINATION OF CHEMICAL AND MICROBIOLOGICAL PROPERTIES OF DONKEY'S MILK PRODUCED IN ISPARTA

In this study, dry matter (%), fat (%), pH and titratable acidity (?SH) values were determined fromchemical properties of 13 donkey's milk. Total aerobic mesophilic bacteria (TAMB), lactic acid bacteria(LAB), coliform group bacteria, enterococci, staphylococcus/micrococcus and Staphylococcus aureusanalyses were performed. Donkey's milk protein profile determined by sodium dodecyl sulfatepolyacrylamide gel electrophoresis (SDS-page) method. pH, titratable acidity, dry matter and fat valuesranged from 7.16 to 7.62, 2.0 to 3.25, 8.42 to 9.82, 0.40 to 0.95 respectively. The total mesophilic aerobbacteria counts of the samples were determined 3.12-7.48 log-cfu/mL, Lactobacilli and Lactococci3.35-5.58 log-cfu/mL, 4.3-6.93 log-cfu/mL, Enterococci spp 3.55-5.01 log-cfu/mL, Coliform group bacteriacounts 3.51-6.45 log-cfu/mL and Staphylococcus/micrococcus 3.53-6.31 log-cfu/mL. Staphylococcusaureus was not detected in all milk samples.

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