Assessment and Control of Microbiological Health Risks Presented by Foods

Mossel, D. À. A.

doi:10.1007/978-94-009-8718-0_10

Cited by 5 publications

(2 citation statements)

References 238 publications

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“…Using the m and M-model (Mossel, 1980) an m-value of one colony per 1 ml of water has been demonstrated to be attainable and therefore constitutes a justified lower target value. Because, even when observing all required and practicable asepttc precautions, occasional sparse contamination of agar plates can occur and it may be wise to allow at most 5 colonies (Mossel and Drion, 1954), hence M = 5.…”

Section: R~ultsmentioning

confidence: 99%

Monitoring non-carbonated (‘still’) mineral waters for aerobic colonization

Leclerc

Mossel

Savage

1985

International Journal of Food Microbiology

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Fifty samples each of two leadmg brands of French, non-carbonated ('still') mineral waters, packed an plastic bottles, were stored in the dark for one month at approx~mateb. 200(. . to allot marked proliferation of their autotrophic microbial flora. Upon completion of th~s challenge test 1250 ml per bottle were filtered through five membranes. ~.h~ch were subsequently cultured on 1/10 strength nutrient agar for 48 h at a temperature favouring the growth of thermotrophtc orgam~ms only,, i.e 42 _+ 0 5°C. The numbers of colonies per one htre were below 10 ~ in all samples and did not exceed 200 in 56-80~. depending on the brand. Identification of the ~solates demonstrated strong inhibition of the psychrotrophic Gram-negative types, predominating m the association flora of stored stdl v, ater~ and preponderance of Gram-positive. catalase-posmve, facultatively anaerobic cfx:ci. Consequentl). a Reference Value for the thermotrophic autotrophic colony count per I ml m stdl, commercial mineral taters of the order m = I and M -5 seems justified. It is emphasized that. besides exammmg for these trl~.ial orgamsms, the usual tests for marker bacteria (Escherwht, coh and Lancefield group D .,treptoctv,,'cO and Pseud,monas aerugmosa should always be carried out

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Section: R~ultsmentioning

confidence: 99%

Monitoring non-carbonated (‘still’) mineral waters for aerobic colonization

Leclerc

Mossel

Savage

1985

International Journal of Food Microbiology

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“…based on a pursuit of 'normality'. In this instance, this calls for colonisation levels that constitute tolerable exposure levels from the point of view of hazard analysis (Mossel and Struijk 1996) whilst, at the same time, being attainable and maintainable through modern food processing, distribution and storage technology (Mossel 1980, Duran et al 1983). (v) The previous principle reinforces the observation contained in (i) above, that reference ranges must be specifically related to organisms of concern and to the ecological and processing parameters of the food in question (Mossel and Struijk 1992).…”

Section: Microbial Reference Ranges (Standards)mentioning

confidence: 98%

Shaping the new generation of microbiological food safety professionals: Attitudes, education and training

Mossel¹,

Morris²,

Struijk³

et al. 1997

International Journal of Environmental Health Research

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The development of proactive risk management approaches in pursuit of microbiologically safe food is a direct consequence of the ineffectiveness of traditional retrospective strategies. This review catalogues some of the more important observations and insights which have brought about such a change in strategy. By any interpretation the reaction of the scientific community to change has been, in some quarters, as trenchant as it is unwarranted. The anatomy of this opposition and the psychological determinants underpinning it are examined and challenged. The need for an amended perception of the role of monitoring and of microbiological standards in the validation of proactive risk management is explored. Particular attention is given to the importance of accurate analytical methods and to the advantages which derive from the adoption of microbiological reference ranges as opposed to single numerical limits. The need to assess attainable ranges with reference to the intrinsic characteristics of the food under consideration and its mode of transport and distribution is also highlighted. Implications of the change in strategy aimed at consumer protection for education and training of food safety professionals with particular reference to food microbiologists, are considered.

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