期刊
MEAT SCIENCE
卷 91, 期 4, 页码 454-459出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2012.02.031
关键词
Meatball formulation; Double quenched TaqMan probe; Halal and Kosher foods; Threshold cycle; Ground meat
资金
- University Malaysia Perlis
- RUGS [9031]
- MOSTI [05-01-35-SF-1030]
A test for assessing pork adulteration in meatballs, using TaqMan probe real-time polymerase chain reaction, was developed. The assay combined porcine-specific primers and TaqMan probe for the detection of a 109 bp fragment of porcine cytochrome b gene. Specificity test with 10 ng DNA of eleven different species yielded a threshold cycle (Ct) of 15.5 +/- 0.20 for the pork and negative results for the others. Analysis of beef meatballs with spiked pork showed the assay can determine 100-0.01% contaminated pork with 102% PCR efficiency, high linear regression (r(2)=0.994) and <= 6% relative errors. Residuals analysis revealed a high precision in all determinations. Random analysis of commercial meatballs from pork, beef, chicken, mutton and goat, yielded a Ct between 15.89 +/- 0.16 and 16.37 +/- 0.22 from pork meatballs and negative results from the others, showing the suitability of the assay to determine pork in commercial meatballs with a high accuracy and precision. (C) 2012 Elsevier Ltd. All rights reserved.
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