The Study of Biochemical Markers of Goat Milk in Shirak Region, Republic of Armenia

Abstract

The aim of the research is to look into the biochemical markers of goat milk at various lactation stages from the perspective of quality and purpose to study the efficiency of the pasteurization process in the supply chain from raw materials to finished products and, from the point of view of shelf-life targeted to the future research. The goats have been bred in the Shirak region of the Republic of Armenia. Differences have been observed between lactations in relation to the quantity of urea and Lactatdehydrogenase activity, i.e. a decrease in the third lactation as opposed to the first lactation. During the three lactations, under standard milk pH (5.8-6.2) conditions, steady enzyme indices have been observed in Lactoperoxidase and Alkaline Phosphatase activity, i.e. 0.66-0.71 U/ml and 6.9-7.03 U/l respectively. These data indicate that the absorption of food proteins and carbohydrates intensifies with age, which is directly linked to the level of lactation, while the identified steady indicators of Lactoperoxidase and Alkaline Phosphatase enzymes set grounds for further research to establish their levels of activity at different stages related to pasteurization.

Keywords

• alkaline phosphatase
• goat
• lactoperoxidase
• milk
• urea