Antibacterial and antiviral activity of camel milk protective proteins

I El Sayed, R Ruppanner, A Ismail… - Journal of Dairy …, 1992 - cambridge.org
I El Sayed, R Ruppanner, A Ismail, CP Champagne, R Assaf
Journal of Dairy Research, 1992cambridge.org
Lysozyme (LZ), lactoferrin (LF), lactoperoxidase (LP), immunoglobulin G and secretory
immunoglobulin A were extracted from camel milk. The activity of these protective proteins
was assayed against Lactococcus lactis subsp. cremoris, Escherichia coli, Staphylococcus
aureus, Salmonella typhimurium and rotavirus. Comparative activities of egg white LZ,
bovine LZ and bovine LF are also presented. The antibacterial activity spectrum of camel
milk LZ was similar to that of egg white LZ, and differed from bovine milk LZ. Bovine and …
Lysozyme (LZ), lactoferrin (LF), lactoperoxidase (LP), immunoglobulin G and secretory immunoglobulin A were extracted from camel milk. The activity of these protective proteins was assayed against Lactococcus lactis subsp. cremoris, Escherichia coli, Staphylococcus aureus, Salmonella typhimurium and rotavirus. Comparative activities of egg white LZ, bovine LZ and bovine LF are also presented. The antibacterial activity spectrum of camel milk LZ was similar to that of egg white LZ, and differed from bovine milk LZ. Bovine and camel milk LF antibacterial activity spectra were similar. The camel milk LP was bacteriostatic against the Gram-positive strains and was bactericidal against Gram-negative cultures. The immunoglobulins had little effect against the bacteria but high titres of antibodies against rotavirus were found in camel milk. The LP system was ineffective against rotavirus.
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