Clean-in-place monitoring of different food fouling materials using ultrasonic measurements

Escrig, J.; Woolley, E.; Rangappa, S.; Simeone, A.; Watson, N.J.

Abstract

Clean-in-Place is an autonomous technique used to clean the internal surfaces of processing equipment in the
food and drink sector. However, these systems clean for a longer time than required with negative economic and
environmental impacts. In this work, an ultrasonic sensor system was developed to monitor the cleaning of
different food fouling materials at laboratory scale. The fouling removal of three different food materials was
also studied at different cleaning fluid temperatures. The three food materials had different cleaning mechanisms,
which could be monitored successfully with the ultrasonic system. Tomato paste and gravy appeared to be
cleaned by mechanical forces whereas malt extract dissolved into the cleaning water. The results yielded from
the cleaning of the malt was found to be repeatable whereas the tomato and gravy were more variable between
repeat experiments. It was found that changes in recorded ultrasonic signals were mainly affected by the area of
fouling that covered the transducer's active element.

Citation

Escrig, J., Woolley, E., Rangappa, S., Simeone, A., & Watson, N. (2019). Clean-in-place monitoring of different food fouling materials using ultrasonic measurements. Food Control, 104, 358-366. https://doi.org/10.1016/j.foodcont.2019.05.013

• Journal Article Type: Article
• Acceptance Date: May 11, 2019
• Online Publication Date: May 16, 2019
• Publication Date: Oct 31, 2019
• Deposit Date: May 17, 2019
• Publicly Available Date: May 17, 2020
• Journal: Food Control
• Print ISSN: 0956-7135
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 104
• Pages: 358-366
• DOI: https://doi.org/10.1016/j.foodcont.2019.05.013
• Keywords: Biotechnology; Food Science
• Public URL: https://nottingham-repository.worktribe.com/output/2063190
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S095671351930221X?via%3Dihub
• Contract Date: May 17, 2019