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Manufacture and characterization of kefir made from cow and buffalo milk using kefir grain and starter culture     
Yazarlar
Prof. Dr. Osman GÜL
Ondokuz Mayıs Üniversitesi, Türkiye
Mustafa Mortaş
Ondokuz Mayıs Üniversitesi, Türkiye
İlyas Atalar
Ondokuz Mayıs Üniversitesi, Türkiye
Muhammet Dervişoğlu
Ondokuz Mayıs Üniversitesi, Türkiye
Talip Kahyaoğlu
Yıldız Teknik Üniversitesi, Türkiye
Özet
The microbiological and chemical characteristics as well as organic and amino acid profiles of kefir samples made from cow and buffalo milks fermented by kefir grains and starter culture were investigated during storage for 21. d at 4°C. After incubation, lactic, acetic, and citric acid concentrations showed a difference among the samples due to milk type and production methods. Storage time had little effect on the organic acid values of kefir samples. As compared with cow milk kefir, buffalo milk kefir had higher numbers of microorganisms, except lactobacilli, at the end of storage. Whereas pH and titratable acidity exhibited similar changes during storage in all kefir samples, ethanol levels were significantly increased in buffalo milk kefir samples. Glutamic acid was the major amino acid at all sampling times for all samples. Tyrosine, serine, histidine, alanine, methionine, and lysine concentrations were determined to be different in all samples depending on milk type. In general, due to the higher microbial population (especially yeast), kefir made from buffalo milk may be preferred.
Anahtar Kelimeler
Buffalo milk | Characterization | Cow milk | Kefir
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Journal of Dairy Science
Dergi ISSN 0022-0302
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 03-2015
Cilt No 98
Sayı 3
Sayfalar 1517 / 1525
Doi Numarası 10.3168/jds.2014-8755
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0022030215000120