Proteins Profile in Milk from Three Species of Ruminants

  • Anamaria COZMA Department of Environmental Chemistry and Hygiene, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca (RO)
  • Sanda ANDREI Department of Biochemistry and Clinical Laboratory, Faculty of Veterinary Medicine, University of Agronomical Sciences and Veterinary Medicine Cluj-Napoca (RO)
  • Doina MIERE Department of Environmental Chemistry and Hygiene, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca (RO)
  • Lorena FILIP Department of Environmental Chemistry and Hygiene, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca (RO)
  • Felicia LOGHIN Department of Toxicology, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca (RO)
Keywords: Bradford method, milk, proteins, ruminants

Abstract

Milk proteins, caseins and whey proteins, are very important nutritionally, as they contain all essential aminoacids in optimal proportions and are the most important source of bioactive peptides. These peptides are protein fragments resulting from enzymatic hydrolysis of milk proteins, which carry numerous beneficial effects on the cardiovascular, nervous, gastrointestinal and immune systems. In this research, total proteins, caseins and whey proteins respectively, were dosed in milk from three species of ruminants-cow, goat and sheep, using a very sensitive method, Bradford photometric method. The highest content of total proteins was obtained in sheeps’ milk (65.92 mg/ml) and the lowest in cows’ milk (40.03 mg/ml), intermediate values occurring in goats’ milk (46.79 mg/ml). The lowest amount of caseins was found in cow milk (28.26 mg/ml), followed by sheep milk (42.55 mg/ml) and goat milk (44.03 mg/ml). When the case of whey proteins, the highest values occur in sheep milk (23.36 mg/ml) and the lowest in cow milk (11.79 mg/ml), goat milk having intermediate values (17.7 mg/ml). The results obtained indicate the dependence of protein concentration in milk of the studied ruminant species and stresses the importance of including goat and sheep milk in daily diet, along with cow milk, for an optimal intake of protein.

Metrics

Metrics Loading ...
Published
2011-03-07
How to Cite
COZMA, A., ANDREI, S., MIERE, D., FILIP, L., & LOGHIN, F. (2011). Proteins Profile in Milk from Three Species of Ruminants. Notulae Scientia Biologicae, 3(1), 26-29. https://doi.org/10.15835/nsb315608
Section
Research articles
CITATION
DOI: 10.15835/nsb315608