Peter J. Fryer

Prof. Peter J. Fryer


Research Focus & Metrics

Academic Career Length

45Years (1982-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2019 in Trends in Food Science & Technology
Verified
Journal Article
Open access
ALAlia Ladha-Sabur
Alia Ladha-Sabur
SBSerafim Bakalis
Serafim Bakalis
PFPeter J. Fryer
Peter J. Fryer
ELEstefania Lopez-Quiroga
Estefania Lopez-Quiroga

1 February 1990 in International Journal of Food Science and Technology
Verified
Journal Article
Closed access
PDF file
KHK. Halden
K. Halden
AAA. A. P. DE Alwis
A. A. P. DE Alwis
PFPeter J. Fryer
Peter J. Fryer

1 May 1997 in Experimental Thermal and Fluid Science
Verified
Journal Article
Closed access
SCS.D. Changani
S.D. Changani
MBM.T. Belmar-Beiny
M.T. Belmar-Beiny
PFPeter J. Fryer
Peter J. Fryer

2 June 2020 in Current Research in Food Science
Verified
Journal Article
Open access
SBSerafim Bakalis
Serafim Bakalis
VVVasilis Valdramidis
Vasilis Valdramidis
DADimitrios Argyropoulos
Dimitrios Argyropoulos
Lilia AhrnéLilia Ahrné
Lilia Ahrné
Jianshe ChenJianshe Chen
Jianshe Chen
JIJan F.M. Van Impe
Jan F.M. Van Impe

1 July 2009 in Trends in Food Science & Technology
Verified
Journal Article
Closed access
PFPeter J. Fryer
Peter J. Fryer
KAK. Asteriadou
K. Asteriadou

11 March 2013 in Comprehensive Reviews in Food Science and Food Safety
Verified
Journal Article
Open access
PDF file
KGKylee R. Goode
Kylee R. Goode
KAKonstantia Asteriadou
Konstantia Asteriadou
PRPhillip T. Robbins
Phillip T. Robbins
PFPeter J. Fryer
Peter J. Fryer
Fouling of food process plant surfaces and the subsequent cleaning needed is a significant industrial problem, and as the cost of water and chemical disposal increases, the problem is becoming more significant. Current literature on water‐based cleaning is reviewed here according to the classification of 3 types of cleaning problems. By doing this, it is hoped that new knowledge can be highlighted applicable to improving industrial cleaning. (i) For type 1 deposits (that can be cleaned with water alone) — Cleaning time appears related to Reynolds number and surface shear stress. An increase in Reynolds number seems to decrease cleaning time. Cleaning temperatures greater than 50 °C do not appear beneficial. (ii) For type 2 deposits (biofilms)—Removal behavior of biofilms seems to be dependent on the microbial aging time on the surface. Keeping a material hydrated on a surface enables easier removal of it with water. a. Water rinsing: Temperature and wall shear stress have varied effects on removal. b. Chemical rinsing: Flow and temperature were seen to have the biggest effect at the start of cleaning, but contact time was more important as cleaning progressed at a given sodium hydroxide solution flow and temperature. (iii) For type 3 deposits (that require a cleaning chemical) — For specifically, protein‐based systems excessive chemical forms a deposit difficult to remove. Increasing wall shear stress and temperature was most beneficial to cleaning rather than concentration. The action of temperature can reduce the use of a chemical for type 2 and type 3 soils. The findings suggest that the right combination of flow characteristics at a given temperature and concentration is crucial to achieving fast cleaning in all cases. There are a number of cleaning monitoring methods at various stages of commercialization that may be capable of monitoring bulk cleaning and cleaning at the surface. To optimize cleaning will require integration of measurement methods into the cleaning process.