The Development, Implementation and Validation of a Cleaning System within Dairy Processing Plant
University of Wales
MetadataShow full item record
Food manufacturing companies are under increased pressure to ensure food safety and compliance with legislation. Constant media and press coverage has increased consumer awareness of the quality and microbiological safety of the foods they consume. Control of the bacterial genus Listeria and Listeria monocytogenes in particular is of paramount importance to producers of ready to eat foods. The dairy industry is recognised as a high risk product due the nature of the pH of some cheese being able to potentially sustain microbiological growth and also due to some bacteria having the ability to live under chilled conditions. The purpose of the work reported in this thesis was to develop and validate a cleaning system which would be validated under laboratory conditions then in situ to ensure it had the same effect in a working environment, and then the assess the effectiveness of ozone within a food manufacturing environment. To carry out this final section of work and ozone machine was installed and a regime was put over a period of time where the ozone machine would be on for assessment and then turned off to assess the effect no ozone would have. The laboratory work carried out showed that the cleaning chemicals and methods in place were sufficient to reduced residual contamination after each of the cleaning stages. Once the validation work was carried out in situ, it showed that the combination of a good cleaning system using the dedicated Holchem chemicals followed by ozone did work within the dairy environment. The results showed that there was a positive downward trend of the counts obtained after each of the cleaning stages, proving that each cleaning stage does have its own importance in a successful cleaning system. The results obtained from this research shows the benefits of using ozone as an additional disinfection stage within a cleaning programme within the dairy manufacturer. The work carried out has opened up the opportunity for further research in this area to look into further benefits of ozone and its applications in other manufacturing situations.
MPhil - School of Health Sciences
Showing items related by title, author, subject and abstract.
An investigation and critical evaluation into the feasibility of setting up a cleaning service aimed at students living in the Roath and Cathays areas of Cardiff. McCormack, Marcus (Cardiff Metropolitan University, 2007)The nature of this project was to investigate and evaluate the domestic cleaning market and the business planning process, and to complete an informative market study and detailed business plan to show the feasibility of ...
THE EFFECT OF A HIGH-FORCE VERSUS A HIGH-VELOCITY WARM UP ON THE POWER AND VELOCITY CHARACTERISTICS OF A CLEAN Edwards, Christopher (Cardiff Metropolitan University, 2013)The study aims to examine the postactivation potentiation (PAP) effects on Peak Power (Ppeak) and Peak Velocity (Vpeak) performance during a clean after either a High-Force (HF) or a High-Velocity (HV) mid-thigh clean pull. ...
Hall, Andrew (University of WalesCardiff School of Health Sciences, 2008)The UK vending industry has received little microbiological attention. Although reported cases of gastroenteritis related to hot-drinks vending are rare, there is evidence of microbial contamination and one reported outbreak ...