Quality evaluation of chocolate produced using soy-cow milk

Abstract

Purpose

The purpose of this paper is to evaluate the effects of substituting cow milk with soy milk in the standard milk chocolate recipe on the physical, chemical and sensory qualities of milk chocolate and obtain the best ratio of substitution.

Design/methodology/approach

Milk chocolates were produced by substituting the cow milk in the standard recipe with soy milk powder at different ratios of soy milk to cow milk. Physical and chemical analyses were carried out using the standard methods to evaluate the major raw materials and chocolate samples, and the sensory evaluation of the chocolate samples was carried out using preference and difference tests.

Findings

Soy milk contained the highest crude protein and crude fiber. The cut test results of the cocoa beans showed that the percentage of fully fermented cocoa beans was in agreement with the standard. Residimeter value (RV) of four chocolate samples (30:70, 20:80, 10:90, and 0:100) was the best. The nitrogen content and melting points of the chocolates samples were found to increase with increased inclusion of soy milk powder in the recipe. There was no significant difference (p<0.05) in taste, sweetness, smoothness, and overall acceptability of the 0:100 and 30:70; soy milk to cow milk samples.

Practical implications

Soy-chocolate will be a new chocolate product with higher melting point and lower cost than the standard milk chocolate. The selling price of chocolate will be lower and thus affordable to low-income earners. Also, there will be an increased utilization of soybean.

Originality/value

Soy-chocolate recipe is a new and additional recipe for the production of milk chocolate.

Citation

Obatoye, A.O., Ogunwolu, S.O. and Idowu, M.A. (2014), "Quality evaluation of chocolate produced using soy-cow milk", Nutrition & Food Science, Vol. 44 No. 1, pp. 57-63. https://doi.org/10.1108/NFS-07-2013-0078