Biochemical composition of goat milk depending on the season of the year
https://doi.org/10.32634/0869-8155-2023-367-2-119-123
Abstract
Relevance. Goat milk is a valuable product in human nutrition. However, the diversity of biologically active compounds in its composition is subject to the influence of a variety of factors, including seasonal climatic changes.
Materials and methods. Analysis of the biochemical parameters of goat milk was performed using the MilkoScan 7/Fossomatic 7 DC analytical system (Denmark) and MilkoScan 7, a spectrophotometer based on Fourier transform infrared spectrophotometry. Statistical processing of the obtained results was carried out in the «Microsoft Excel» program using the Data Analysis package. The significance of differences between seasons was assessed using the critical values of Student's t-test.
Research results. Significant differences were established between True Protein in June 3.06 ± 0.07% (p ≥ 0.01), August 3.17 ± 0.12% (p ≥ 0.05) relative to October 4.37 ± 0.15%. Total Protein in April 2.92 ± 0.05% (p ≥ 0.01), June 3.28 ± 0.06% (p ≥ 0.001), August 3.37 ± 0.11% (p ≥ 0.01) relative to October 4.44 ± 0.14%. SOMO in April 8.17 ± 0.10% (p ≥ 0.05), June 8.42 ± 0.10% (p ≥ 0.001), August 8.39 ± 0.16% (p ≥ 0.001) relative to October 9.75 ± 0.14%. Caseins in April 2.21 ± 0.06% (p ≥ 0.01), June 2.51 ± 0.06% (p ≥ 0.001), August 2.56 ± 0.09% (p ≥ 0.001) relative to October 3.55 ± 0.12%. Seasonal changes most often occur in the composition of milk proteins: the mass fraction of true and total protein, caseins.
Supporting agencies: The materials were prepared within the framework of the regional competition of the Russian Science Foundation in 2021 «Conducting fundamental scientific research and exploratory scientific research by small separate scientific groups» (Agreement № 22-26-00189 of 29.12.2021).
About the Authors
O. A. Voronina
Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
Russian Federation
Oksana Alexandrovna Voronina, Candidate of Biological Sciences, Senior Researcher of the Department of Physiology and Biochemistry of Farm Animals
60, Dubrovitsy, Moscow region, 142132
A. A. Savina
Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
Russian Federation
Savina Anastasia Anatolyevna, junior Researcher of the Department of Physiology and Biochemistry of Farm Animals
60, Dubrovitsy, Moscow region, 142132
N. S. Kolesnik
Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
Russian Federation
Nikita Sergeevich Kolesnik, junior Researcher of the Department of Physiology and Biochemistry of Farm Animals
60, Dubrovitsy, Moscow region, 142132
R. A. Rykov
Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
Russian Federation
Roman Anatolievich Rykov, Senior Researcher of the Department of Physiology and Biochemistry of Farm Animals
60, Dubrovitsy, Moscow region, 142132
S. Yu. Zaitsev
Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
Russian Federation
Sergey Yurievich Zaitsev, Doctor of Biological Sciences, Doctor of Chemical Sciences, Professor Leading Researcher of the Department of Physiology and Biochemistry of Farm Animals
60, Dubrovitsy, Moscow region, 142132
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Review
For citations:
Voronina O.A., Savina A.A., Kolesnik N.S., Rykov R.A., Zaitsev S.Yu. Biochemical composition of goat milk depending on the season of the year. Agrarian science. 2023;(2):119-123. (In Russ.) https://doi.org/10.32634/0869-8155-2023-367-2-119-123
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