Veg. Produce-Listeria monocytogenes contamination and acceptable level
Hi all,
We are working on Listeria monocytogenes contamination in Vegetable processing. As, the basically there are often 3 main causes of contamination as below mentioned. We are control through the cleaning and sanitation in process.
1. Raw materials
2. Environment and equipment
3. Personnel
My question is what is the acceptable limits as above mentioned primary causes. Like a Listeria is cleaning cloths <500 cfu/cloth is unacceptable.
http://www.ifsqn.com...ces/#entry60958
Looking forward your response.
Regards,
Ashfaq Hussain
Hello Ashfaq,
Give some more contextual data if possible. That would help to get an answer easily.
Listeria monocytogenes is a really undesirable bacteria in a food environment.
In many countries it is a "zero tolerance" pathogen and some countries like Canada has a maximum limit <100 CFU/g in certain RTE foods.
Hi all,
We are working on Listeria monocytogenes contamination in Vegetable processing. As, the basically there are often 3 main causes of contamination as below mentioned. We are control through the cleaning and sanitation in process.
1. Raw materials
2. Environment and equipment
3. Personnel
My question is what is the acceptable limits as above mentioned primary causes. Like a Listeria is cleaning cloths <500 cfu/cloth is unacceptable.
http://www.ifsqn.com...ces/#entry60958
Looking forward your response.
Regards,
Ashfaq Hussain
Hi Ashfaq Hussain,
There are a few key questions, eg -
(1) What is the "type" of finished product ? eg RTE ?
(2) What is the basic process ?,eg Bactericidal Stage >= 4D ?
(3) How is it packed/stored ?,eg vac.pack ?, chilled ?
(4) Are there Regulatory micro. requirements for yr product at the point of consumption ?
The Primary source of L.monocytogenes is the external environment where it is ubiquitous.I anticipate you know this already from yr previous forum thread -
https://www.ifsqn.co...toring-program/
I suggest you study the thread and file in this Post -
https://www.ifsqn.co...em/#entry109592
and perhaps this file -
White Paper- Microbiological Testing of Fresh Produce.pdf 127.88KB 20 downloads
Re - Cloth, hands, clothing - the limits are normally associated with a just cleaned/sanitized "item" . Should not detect L.monocytogenes.
Re- environment, as per previous post, findings/requirements will relate to the product/process/gmp. See query (1-4) above.