Development of ice cream with added buttermilk

Abstract

The buttermilk, a byproduct of butter production, is highly polluting due to the high biochemical oxygen demand. One of the main characteristics of this residue is related to the presence of phospholipids, which makes it a great emulsifier to be applied to food. Thus, the present work aimed to establish a formulation for the manufacture of ice cream and to verify the influence of buttermilk in the substitution of skimmed milk. For this, three formulations were elaborated, traditional (100% of skimmed milk), with 50% of substitution of skimmed milk by buttermilk and 100% of substitution of buttermilk. These ice creams were subjected to pH analysis, water activity, overrun, melting and sensory analysis (acceptance, purchase intention and comment analysis). The sample of ice cream that had 100% of skim milk replaced by buttermilk had the best overrun, melt and sensory results, being the most accepted and with the best purchase intention regarding this ice cream. Therefore, it could be concluded that buttermilk was indicated as a substitute for skimmed milk in the production of ice cream, thus allowing an optimal use of this byproduct.

Keywords:
Dairy waste; Sensory analysis; Descriptive sensory analysis