Plant components in products for herodietic nutrition

Abstract

Aim. To explore some of the theoretical and practical possibilities of using vegetable powders in dairy products and beverages for older people. Materials and Methods. As raw materials, sterilized cow's milk with a mass fraction of fat of 1.5% (GOST 31450-2013), drinking water (SanPiN 3.3686-21), vegetable powders: rosehip, cranberry, baobab pulp, blueberry, sea buckthorn were used. For research, plant powders in the amount of 1.0 and 1.5% were dissolved in milk or water at a temperature of 20°C. Organoleptic parameters were determined according to GOST ISO 6658-2016. Temperature processing of experimental samples was carried out at 75; 80 and 85оС. Active acidity was determined with a testo 206-pH1 instrument. Results. The organoleptic characteristics of the samples were evaluated when combining vegetable powders in an amount of 1.0% with milk of 1.5% fat content, on the basis of which a powder from baobab pulp and a powder from rosehip fruits were selected for further research. The studies of some organoleptic, physico-chemical and technological properties of mixtures of baobab fruit powder and rosehip fruit powder with drinking water and milk with a fat mass fraction of 1.5% showed that when these powders were added, a decrease in the hydrogen index (pH) was noted, which can lead to coagulation of milk proteins during heat treatment. During thermal treatment of experimental samples with milk, the amount of vegetable powder was established, at which it is possible to apply the pasteurization temperature regime of 85оC. Conclusion. The choice is justified and the possibility and expediency of including powder from the pulp of baobab and powder from rosehip fruits in the formulations of milk-based products and beverages for herodietic nutrition is established.