The Effects of Blending Cow Milk With Soymilk on Yoghurt Quality
The Effects of Blending Cow Milk With Soymilk on Yoghurt Quality
Abstract of The Effects of Blending Cow Milk With Soymilk on Yoghurt Quality
A quantity of 1 litre each of cow milk and blended (cow/soy) milk was pasteurized and each was inoculated with 5g of a mixed starter culture comprising streptococcus thermophillus, Lactobacillus acidophilus and Lactobacillus bulgariuos and incubated at 500C for 5 hours to ferment to yoghurt. Proximate analysis on both yoghurts showed that there was no significant difference (P>0.05) between the moisture content, protein content and fat content of the two yoghurts samples. The ash content and carbohydrate content of the blended (cow, soy) milk yoghurt were significantly (p<0.05) than that of cow milk yoghurt. Also, significant difference (p, 0.05) was observed in terms of colour between the two yoghurt samples. However, no significant difference (p>0.05) was observed in terms of taste, aroma, consistency and general acceptability of the two yoghurts. Physicochemical analysis showed that the specific gravity of blended (cow/soy) milk was significantly higher (p<0.05) than that of cow milk yoghurt but there was no significant difference (p>0.05) observed in pH and T.T.A of both yoghurts. However, the two yoghurt were generally accepted.