Effect of adding trans glutaminase on the properties of fermented milk
2009
El-Kholy, A.M. | El-Shreef, A.M. | Abou El-Nour, A.M. | El-Zayat, A.I.
Rheological, chemical and organoleptic properties of yoghurt made from (buffaloes', cows' and goats' milk) were studied by adding Microbial Transglutaminase (MTGase) at different ratios. Adding MTGase at different concentrations decrease the development of acidity, syneresis and acetaldehyde content. Also, increased the values of firmness, apparent viscosity and organoleptic properties. Buffaloes' milk yoghurt showed the highest firmness, apparent viscosity and organoleptic properties. Meanwhile it had the lowest syneresis and acidity development. Cows' milk yoghurt showed intermediate values between (buffaloes' and goats' milk yoghurt) for theological, chemical and organoleptic properties. On the other hand, it had the lowest value of acetaldehyde (aroma compound). Goats' milk yoghurt showed the highest values of acetaldehyde, syneresis and acidity development but it had the lowest firmness and apparent viscosity.
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