Methodological and technological aspects of the production of lactose-free dairy products

Abstract

The article provides a rationale for the need to study the development of new lactose-free dairy products, due to an increase in the volume of consumption and the need to master whey processing technologies, using various lactose removal technologies, including enzymatic ones. Whey is rich in amino acids, has high biological value and high degree of digestibility in the human body, due to which whey processed products become attractive to a consumer.The purpose of the research is to develop a method for producing lactose-free albumin from fresh whey obtained after the production of cheese or cottage cheese, using enzymatic hydrolysis technology. The market for lactose-free dairy products in the Russian Federation and the assortment that is presented in the city of Yekaterinburg, the Sverdlovsk region, have been analyzed. The parameters of temperature, duration, and amount of β-galactosidase enzyme added to obtain a lactose-free dairy product with the highest weight yield and the best organoleptic characteristics based on actual technological developments have been investigated. Organoleptic, physicochemical and microbiological indicators of the quality and safety of the resulting lactose-free albumin have been studied. The resulting product has organoleptic characteristics and structure similar to classic cottage cheese, so that it can be used as a cottage cheese substitute for the development of lactose-free products and dishes for baby food.

Keywords

• whey
• lactose-free product
• lactose
• enzymatic hydrolysis
• quality indicators
• albumin
• β-galactosidase