Effect of Biological Materials Including Sucrose and Bacteria Ratios on the Fermentation of Goat Yogurt

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Effect of biological materials including sucrose concentration and bacteria ratios on fermentation of goat yogurt was studied by measuring acidity, pH and viable counts. Sucrose concentration (v/v) was 4%, 6%, 8%, 10% and 12%. The ratios of Lactobacillus bulgaricus and Streptococcus thermophilus were 1:3, 1:2, 1:1, 2:1 and 3:1, respectively. The results were as follows: lower or higher sucrose concentration and bacteria ratios resulted in adversely influence on overall properties of goat yogurt. The optimum sucrose concentration in goat milk was 8% and bacteria ratios were 2:1, respectively.

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469-472

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October 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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