FOOD. Science. Technology. Quality

Food. SCIENCE. Technology. Quality

Food. Science. TECHNOLOGY. Quality

Food. Science. Technology. QUALITY

Authors

JACEK DOMAGAŁA, MONIKA WSZOŁEK

Title

Effect of concentration method and starter culture type on the texture and susceptibility to syneresis of yoghurt and bio-yoghurts made of goat’s milk

Abstract

There were investigated changes in texture and susceptibility to syneresis of yoghurt and bio-yoghurts made of goat’s milk that was non-concentrated, ultrafiltrated, and concentrated using powdered milk. YC180 starter culture was used to make yoghurt, and ABY-2 and ABT-1 starter cultures to make bioyoghurts. When milk was concentrated using an ultrafiltration method, the final product received showed desirable sensory properties, good texture parameters, and a lower susceptibility to syneresis compared to the final product received using milk concentrated by the addition of powdered milk. The addition of powdered milk insignificantly improved the texture of yoghurt and bio-yoghurts, but, on the other hand, it caused the deterioration of their smell and taste. Among the products studied, the yoghurt of goat’s milk concentrated by the ultrafiltration method and made using YC-180 starter culture had the best sensory properties and a good texture.

Keywords

goat’s milk yoghurt and bio-yoghurt, starter culture type, ultrafiltration, texture, syneresis

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