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VIDAS LMX & LPT Collaborative Study
April 19, 2013
OMA-2013-Apr-XXX
5. Report all of your results as soon as analyses are completed. Do not do more or less than
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indicated in the instructions. For example, do not do duplicate analysis and report the best or
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average result. More or fewer results complicate the statistical analyses and may invalidate your
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results. Data sheets are provided with these instructions and indicate which results are to be
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reported. Please include any criticisms, suggested improvements, or general comments about the
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products on the Collaborators’ Comments Form provided. Any results that were derived from
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modified protocols should be included but must be separated from the main report. Results and
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comments should be returned to the Study Director immediately upon completion of each
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portion of the study.
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Information about this Collaborative Study
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Shipment Schedule
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Test portions will be shipped by overnight express courier to arrive on Friday. If the test
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portions do not arrive by the normal delivery time one day prior to analysis, please contact a co-
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Study Director. All test portions will be shipped refrigerated.
Analysis of test portions must be
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initiated on the day scheduled by the Study Director. Test kits will be sent directly from
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bioMérieux.
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Proposed analysis schedule
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Food
Test Kit
Date Shipped
Date Tested
Soft Mexican Cheese- 25g
LMX
-LMX broth-
Thursday
Monday
Soft Mexican Cheese – 25g
LPT
-LPT broth-
Thursday
Monday
Soft Mexican Cheese – 125g
LMX & LPT
-LPT broth-
Thursday
Monday
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Test Portion Receipt
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Note condition of package on the data sheets and notify the Study Director if any packages
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appear to have been compromised or if the food product does not arrive in the appropriate
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condition. All refrigerated products should arrive cold to the touch and should be stored at 4
°
C
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(refrigerated) until the day of analysis.
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Test Portion Analysis
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Collaborators will be provided with enough matrix to test using the VIDAS method and the
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AOAC reference method. See Appendix 8.5 for detailed instructions on analysis. Please review
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the reference method carefully before initiating analysis.
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One additional 60 g control (negative) test portion will be provided to each collaborator for each
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matrix to determine the total plate count on the day of analysis. One temperature control sample
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DRAFT DOCUMENT
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