MODELING OF GROWTH OF S. AUREUS AS AFFECTED BY PH, NACL CONCENTRATION, INOCULUM LEVELS, TEMPERATURE AND STORAGE TIME

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RAZAVILAR V.; JAMSHIDI ABD ELAH; AKHOUNDZADEH A.

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Journal: Journal of Veterinary Research Year:2002 | Volume:57 | Issue:1 Page(s): 31-36

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Information Journal Paper

Title

MODELING OF GROWTH OF S. AUREUS AS AFFECTED BY PH, NACL CONCENTRATION, INOCULUM LEVELS, TEMPERATURE AND STORAGE TIME

Author(s)

RAZAVILAR V. | JAMSHIDI ABD ELAH | AKHOUNDZADEH A. | Issue Writer Certificate

Keywords

S. AUREUS. TEMPERATUREQ2

NACLQ3

PHQ3

PREDICTIVE MICROBIOLOGYQ2

PROBABILITY OF GROWTHQ4

Abstract

Objective: To evaluate the fate of S.Aureus affected by PH, NACL. Inoculum levels, temperature, storage time using predictive model.Design: Experimental study using multiple factorial analysis.Procedure: The effects of NACL (0.5, 4.5, 9%), Temperature (15, 25, 35co), PH (5, 6, 7) adjusted by citric acid, storage time (up to 30 days), inoculum (10-2-105/ml) on the log probability percentage of one cell of S. aureus to initiate growth (log P%) in brain heart infusion broth were evaluated in a factorial design study.Statistical analysis: Regression equation with stepwise method.Results: A predictive growth model was created to predict the growth of S. aureus with coefficient of determination (R2), Equal to 0.83. The statistical analysis showed that the growth of organism (log p%) was affected significantly by NACL, PH, Temperature and storage time (P<0.01). The effectiveness of factors on the growth of organism was according to the order of temperature> time> PH> NACL. The combination of temperature £ 15co, PH £ 5, NACL £ 9% was the only condition which completely inhibited the growth of S. aureus in this study.Conclusion: The created growth model in this study with a coefficient of determination equal to 0.83 can be used to predict the growth of organism affected by the ranges of factor levels used in this study.

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APA: Copy

RAZAVILAR, V., JAMSHIDI, ABD ELAH, & AKHOUNDZADEH, A.. (2002). MODELING OF GROWTH OF S. AUREUS AS AFFECTED BY PH, NACL CONCENTRATION, INOCULUM LEVELS, TEMPERATURE AND STORAGE TIME. JOURNAL OF VETERINARY RESEARCH, 57(1), 31-36. SID. https://sid.ir/paper/35356/en

Vancouver: Copy

RAZAVILAR V., JAMSHIDI ABD ELAH, AKHOUNDZADEH A.. MODELING OF GROWTH OF S. AUREUS AS AFFECTED BY PH, NACL CONCENTRATION, INOCULUM LEVELS, TEMPERATURE AND STORAGE TIME. JOURNAL OF VETERINARY RESEARCH[Internet]. 2002;57(1):31-36. Available from: https://sid.ir/paper/35356/en

IEEE: Copy

V. RAZAVILAR, ABD ELAH JAMSHIDI, and A. AKHOUNDZADEH, “MODELING OF GROWTH OF S. AUREUS AS AFFECTED BY PH, NACL CONCENTRATION, INOCULUM LEVELS, TEMPERATURE AND STORAGE TIME,” JOURNAL OF VETERINARY RESEARCH, vol. 57, no. 1, pp. 31–36, 2002, [Online]. Available: https://sid.ir/paper/35356/en

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