Effect of Using Protein Based Fat Replacer on Quality of Nonfat Yoghurt (Turkish with English Abstract)

Öz

In this study, physical, chemical, textural and sensory properties of nonfat yoghurts manufactured from reconstituted skim milk using two different levels (1% and 2%) of Dairy-Lo™ as fat replacer were investigated. In yoghurt samples, titratable acidity, pH values, acetaldehyde, lactic acid, serum separation, viscosity, consistency values were determined at 1., 7. and 15. days of storage. Organoleptic evaluation was carried out. From the results, it was found that the addition of different levels of Dairy-Lo™ to reconstituted skimmed milk were increased consistency and viscosity of non fat yoghurts and decreased serum separation of non fat yoghurts. The addition of 2% level of Dairy-Lo™ were improved the quality of non fat yoghurt.

Anahtar Kelimeler

• Non fat set type yoghurt, protein based fat replacer, quality 

Protein Esaslı Yağ İkame Maddesi Kullanımının Yağsız Yoğurdun Kalitesi Üzerine Etkisi

Öz

Bu çalışmada, protein esaslı yağ ikame maddesi olan Dairy-Lo™ 'nun %1 ve %2 gibi iki farklı oranı kullanılarak, rekonstitüe sütten üretilen, yağsız set tipi yoğurtların fiziksel, kimyasal, tekstürel ve duyusal özellikleri incelenmiştir. Yoğurt örneklerinde depolamanın 1., 7. ve 15. günlerinde titrasyon asitliği, pH, asetaldehit, laktik asit, serum ayrılması, viskozite, konsistens değerleri saptanmıştır. Ayrıca yoğurt örneklerinde duyusal değerlendirmeler de yapılmıştır.  Bu çalışma sonucu elde edilen bulgular, protein esaslı yağ ikame maddesi Dairy-Lo™ ilavesinin yağsız yoğurdun konsistens ve viskozitesini artırıp, serum ayrılmasını azalttığını göstermiştir. Dairy-Lo™ 'nun %2 oranında kullanımının yağsız set tip yoğurdun kalitesini iyileştirdiği belirlenmiştir. 

Anahtar Kelimeler

• Yağsız set tip yoğurt, protein esaslı yağ ikame maddesi, kalite

Kaynakça

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