Register      Login
Microbiology Australia Microbiology Australia Society
Microbiology Australia, bringing Microbiologists together
RESEARCH ARTICLE

Microbiological testing of foods: what, why, how

Agnes Tan A and Numani Weerasuriya B
+ Author Affiliations
- Author Affiliations

A Microbiological Diagnostic Unit (MDU) Public Health Laboratory
Melbourne, Vic, Australia
Tel: +61 3 8344 5701
Fax: +61 3 8344 7833
Email: agct@unimelb.edu.au

B Standards Australia
Sydney, NSW, Australia
Tel: +61 2 9237 6131
Fax: +61 2 9237 6010
Email: Numani.Weerasuriya@standards.org.au

Microbiology Australia 34(2) 105-107 https://doi.org/10.1071/MA13036
Published: 13 May 2013

Abstract

Complexity in food testing arises from the food (matrix), the need to detect low numbers of target microorganisms in the presence of potentially similar background microflora, the potential use of testing to demonstrate compliance and the high cost (not just financial) of getting it wrong. Microbiological criteria for food specify the method of analysis1 because “test results are dependent on the analytical method used”2. Several bodies are involved in the development of standardised methods, and laboratories may have to run several methods for the same target to meet client needs. The current review of Standard 1.6.1 of the Food Standards Code3 and the July 2012 collaboration agreement struck between the International Organization for Standardization (ISO) and the Association of Analytical Chemists (AOAC International)4 should hopefully reduce the workload for food laboratories.


References

[1]  Codex Alimentarius (1997) Principles for the establishment and application of microbiological criteria for foods – CAC/GL 21.

[2]  European Commission (2005) Regulation No. 2073/2005 on microbiological criteria for foodstuffs.

[3]  Food Standards Australia New Zealand (2012) Reviewing Standard 1.6.1: Microbiological Limits for Foods.

[4]  Anon. (2012) AOAC and ISO sign cooperation agreement for joint development and approval of common standards. In: Inside Laboratory Management July/August, p. 12. AOAC International.

[5]  Mossel, D.A.A. (1982) The control of the microbial quality of foods. In Microbiology of Foods. The ecological essentials of assurance and assessment of safety and quality, 3rd edn, p. 65, The University of Utrecht.

[6]  Zapatka, F.A. and Varney, G.W. (1977) Neutralization of bactericidal effect of cocoa powder on Salmonellae by casein. J. Appl. Bacteriol. 42, 21–25.
Neutralization of bactericidal effect of cocoa powder on Salmonellae by casein.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaE2s7msV2muw%3D%3D&md5=7fdea057ac305582bf2321bf57eeb4d3CAS | 323210PubMed |

[7]  Hartman, P.A. (2001) The Evolution of Food Microbiology. In Food Microbiology. Fundamentals and Frontiers, 2nd edn (Doyle, M.P. et al., eds), pp. 3-12, ASM Press.

[8]  Joint Editorial Board (2005) Preface to the twenty-first edition. In Standard Methods for the Examination of Water and Wastewater (Eaton, A.D. et al., eds), pp. iii-v, American Public Health Association.

[9]  Anon. (2010) AS 5013.0. Food microbiology. Part 0: General introduction to the Australian standard methods for food microbiology. Standards Australia.

[10]  FSANZ (2012) Food Standards Code: Standard 1.6.1. Microbiological Limits for Food. Food Standards Australia New Zealand.