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2023, Vol: 13, Issue: 5
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Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk

S.K. Abolghait1,2,*, A.M. Garbaj2 and A.A. Moawad2,3.

Abstract
Milk from different animal species has variable levels of antimicrobial factors against some of spoilage bacteria. For example, they are significantly present in higher concentration in she-camel’s milk than in cattle or buffalo and they are more heat-resistant than their counterparts in cattle and buffalo. Spoilage bacteria are known to communicate with each other by release of signaling molecules, a phenomenon described as quorum sensing (QS). Some food matrices inhibit these signaling compounds. In this study we screened QS inhibitory activities in raw milk of cattle and camel. Ten samples each of fresh raw cow’s milk and she-camel’s milk from apparently healthy animals were screened using the bacterial model Cromobacterium violaceum. The tested cow’s raw milk samples were able to inhibit the production of QS signalling molecules acyl-homoserine lactones (AHLs) produced by C. violaceum. However, she-camel’s milk samples were less effective in inhibiting such AHLs. Thus, one of the factors which influence the inhibitory activity could be derived from variation in milk chemical composition, especially in the percentage of fat which is significantly higher in tested cow’s milk samples (2.22±0.12) than in tested she-camel’s milk samples (1.44±0.35). Natural inhibition of QS signaling by cow’s milk may offer a unique means to control foodborne pathogens and reduce microbial spoilage.

Key words: Milk from different animal species has variable levels of antimicrobial factors against some of spoilage bacteria. For example, they are significantly present in higher concentration in she-camel’s milk than in cattle or buffalo and they are more heat-resistant than their counterparts in cattle and buffalo. Spoilage bacteria are known to communicate with each other by release of signaling molecules, a phenomenon described as quorum sensing (QS). Some


 
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How to Cite this Article
Pubmed Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad,. Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk. Open Vet J. 2011; 1(0): 35-38. doi:10.5455/OVJ.2011.v1.i0.p35

Web Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad,. Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk. https://www.openveterinaryjournal.com/?mno=302656806 [Access: May 31, 2023]. doi:10.5455/OVJ.2011.v1.i0.p35

AMA (American Medical Association) Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad,. Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk. Open Vet J. 2011; 1(0): 35-38. doi:10.5455/OVJ.2011.v1.i0.p35


Vancouver/ICMJE Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad,. Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk. Open Vet J. (2011), [cited May 31, 2023]; 1(0): 35-38. doi:10.5455/OVJ.2011.v1.i0.p35


Harvard Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad, (2011) Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk. Open Vet J, 1 (0), 35-38. doi:10.5455/OVJ.2011.v1.i0.p35


Turabian Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad,. 2011. Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk. Open Veterinary Journal, 1 (0), 35-38. doi:10.5455/OVJ.2011.v1.i0.p35


Chicago Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad,. "Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk." Open Veterinary Journal 1 (2011), 35-38. doi:10.5455/OVJ.2011.v1.i0.p35


MLA (The Modern Language Association) Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad,. "Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk." Open Veterinary Journal 1.0 (2011), 35-38. Print. doi:10.5455/OVJ.2011.v1.i0.p35


APA (American Psychological Association) Style

S.K. Abolghait,,, A.M. Garbaj and A.A. Moawad, (2011) Raw cow’s milk relatively inhibits quorum sensing activity of Cromobacterium violaceum in comparison to raw she-camel’s milk. Open Veterinary Journal, 1 (0), 35-38. doi:10.5455/OVJ.2011.v1.i0.p35


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