The data presented in Table 2 showed that the addition of FWL (fine wine lees) significantly affected the studied parameters except protein content. Increment in content of FWL in ice cream decreased pH and specific gravity while acidity and protein content was increased in comparison to control. Value of pH in control was 6.79 which was decreased up to 5.71 in case of T5 and resulted in drastic increment in acidity content of ice cream. Ice cream from control was contained 0.150 % acidity and it rose up to 0.739 % in T5. The specific gravity of ice cream was decreased by addition of FWL. Specific gravity of ice cream from control was 1.088 and decreased up to the value of 1.037 in T5. Maximum protein (4.05 %) was recorded in T5 and minimum (4.02 %) was noted in control. The decrease in pH was because of addition of wine lees. Wine lees contained various acidic compounds such as tartaric acid and malic acid. Oxidation of ethanol also cause decrease in pH. Acidity is reverse process of pH. Acidity increased on addition of wine lees. The pH and acidity in ice cream was also studied by Sagdic et al. (2011), when they added pomegranate peel extract and grape seed extract for functional properties in ice cream, also observed same trend. Hwang et al. (2009) also recorded declined pH of ice cream when grape wine lees was added. The decreased specific gravity was also noted by them, which trend is recorded in present study also. Fine wine lees contained 35 mg/g protein so the addition was
found enriching the ice cream with protein.