Avaliação sensorial de sorvete formulado com produto de soro ácido de leite bovino

Abstract

Whey, by-product of cheese or casein production, is classified in sweet or acid whey. Composed by water, proteins, lactose and minerals, when concentrated it produces proteins ingredients with high functionality and nutritional value. However, whey protein manufacturing has been applied only to sweet whey. Acid whey has been generally dumped down as dairy waste. This paper shows results obtained from acid whey product addition in ice cream formulation, in model system, ascertaining by sensory evaluation the panelists acceptance for five different milk substitutions levels. Ice cream samples were made with a mix composition of 2.5% milk fat, 18.3% sucrose, 2.3% egg yolk solids, 0.3% stabilizer-emulsifier and vanilla flavor. Standard ice cream (P) was formulated with 10.09% of dry skim milk. Other four mixture were repared with dry acid whey product (SAP) replacing dry skim milk in 100, 80, 60 e 30% levels. Evaluation of effect for using SAP, to total or partial replace of dry skim milk, was done by sweet taste sensory test. There was no statically significative difference (p≤0.5) between samples for sweet taste. There was good panelists acceptance for 60 and 30% substitutions levels. © 2006 SBCTA.