Cleaning-in-place for oat product processes: Improving the cleaning program of a pilot scale UHT line
(2025) KETM05 20242Chemical Engineering (M.Sc.Eng.)
- Abstract
- This study investigates the optimization of Cleaning-In-Place (CIP) programs for Ultra-High Temperature (UHT) equipment used in oat drink production. The research comprises three main experiments: an Identification of the largest cleaning load product, an Assessment of improved CIP programs, and an Investigation of deposit composition in the flash cooler.
The Identification of the largest cleaning load product identified Soiling product #3 as the most challenging to clean, which was then used in the Assessment of improved CIP programs to evaluate five CIP programs, including the current standard and four improved alternatives. CIP program #3, utilizing hydrogen peroxide detergent, achieved the best results, significantly improving... (More) - This study investigates the optimization of Cleaning-In-Place (CIP) programs for Ultra-High Temperature (UHT) equipment used in oat drink production. The research comprises three main experiments: an Identification of the largest cleaning load product, an Assessment of improved CIP programs, and an Investigation of deposit composition in the flash cooler.
The Identification of the largest cleaning load product identified Soiling product #3 as the most challenging to clean, which was then used in the Assessment of improved CIP programs to evaluate five CIP programs, including the current standard and four improved alternatives. CIP program #3, utilizing hydrogen peroxide detergent, achieved the best results, significantly improving microbial and visual cleanliness. Enzyme-based programs (#1 and #4) showed competitive microbial results but required further optimization for visual cleanliness. The investigation of deposit composition in the flash cooler revealed that Enzyme B effectively removed discoloration in the flash cooler, suggesting potential for enzyme-based CIP programs to enhance environmental and safety outcomes.
The study highlights the importance of tailored CIP programs to improve cleaning efficiency, reduce environmental impact, and ensure the safety of personnel. Future work should focus on exploring practical and economic feasibility for the implementation of CIP program #3 that had the best result in the study, as well as further studying and refining enzyme-based detergents as a more sustainable alternative. (Less) - Popular Abstract (Swedish)
- Havredrycker har blivit alltmer populära tack vare konsumenternas ökade intresse för hållbara och hälsosamma livsmedel. Men produktionen av havredryck ställer unika krav på rengöring av utrustningen, särskilt när det gäller UHT-behandling (Ultra-High Temperature) som används för att förlänga hållbarheten. Detta gör att nya utmaningar kring rengöring av utrustningen uppstår.
Denna studie undersökte hur man kan optimera rengöringsprocessen (Cleaning-In-Place, CIP) för UHT-utrustningen i en pilotanläggning som processar havreprodukter. Tre huvudsakliga experiment genomfördes: en identifiering av den mest svårdiskade produkten, en utvärdering av optimerade CIP-program och en undersökning om ifall enzymer kan ha effekt på missfärgningar i... (More) - Havredrycker har blivit alltmer populära tack vare konsumenternas ökade intresse för hållbara och hälsosamma livsmedel. Men produktionen av havredryck ställer unika krav på rengöring av utrustningen, särskilt när det gäller UHT-behandling (Ultra-High Temperature) som används för att förlänga hållbarheten. Detta gör att nya utmaningar kring rengöring av utrustningen uppstår.
Denna studie undersökte hur man kan optimera rengöringsprocessen (Cleaning-In-Place, CIP) för UHT-utrustningen i en pilotanläggning som processar havreprodukter. Tre huvudsakliga experiment genomfördes: en identifiering av den mest svårdiskade produkten, en utvärdering av optimerade CIP-program och en undersökning om ifall enzymer kan ha effekt på missfärgningar i utrustningen.
Först identifierades den mest svårstädade produkten, som visade sig vara ”Soiling product #3”. Denna produkt användes sedan för att testa fem olika CIP-program, där ett program var det nuvarande rengöringsprogrammet och fyra alternativ som inte implementerats eller utvärderats tidigare. Resultaten visade att CIP-program #3, som använde ett rengöringsmedel med väteperoxid, gav bäst resultat både mikrobiellt och visuellt. Enzymbaserade program (#1 och #4) visade lovande mikrobiella resultat men behövde förbättras för att uppnå bättre visuell renhet.
Undersökning om ifall enzymer kan ha effekt på missfärgningar i utrustningen visade att Enzym B effektivt kunde ta bort missfärgningar, vilket tyder på att enzymbaserade CIP-program kan vara ett lovande och mindre giftigt alternativ till kemikaliebaserade rengöringsmedel.
Studien betonar vikten av skräddarsydda CIP-program för att förbättra rengöringseffektiviteten, minska miljöpåverkan och säkerställa säkerheten hos de som ska hantera utrustningen. Framtida arbete bör fokusera på praktiska och ekonomiska möjligheter för implementering av CIP-program #3 som gav bäst resultat i studien, samt vidare studera och optimera enzymbaserade rengöringsmedel som ett mer hållbart alternativ. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9186122
- author
- Wikman, Kajsa LU
- supervisor
- organization
- alternative title
- Cleaning-in-place för havreproduktsprocesser: Att förbättra rengöringen av en UHT-anläggning i pilotskala
- course
- KETM05 20242
- year
- 2025
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- chemical engineering, process design, cleaning-in-place, CIP
- language
- English
- id
- 9186122
- date added to LUP
- 2025-03-21 08:44:59
- date last changed
- 2025-03-21 08:44:59
@misc{9186122,
abstract = {{This study investigates the optimization of Cleaning-In-Place (CIP) programs for Ultra-High Temperature (UHT) equipment used in oat drink production. The research comprises three main experiments: an Identification of the largest cleaning load product, an Assessment of improved CIP programs, and an Investigation of deposit composition in the flash cooler.
The Identification of the largest cleaning load product identified Soiling product #3 as the most challenging to clean, which was then used in the Assessment of improved CIP programs to evaluate five CIP programs, including the current standard and four improved alternatives. CIP program #3, utilizing hydrogen peroxide detergent, achieved the best results, significantly improving microbial and visual cleanliness. Enzyme-based programs (#1 and #4) showed competitive microbial results but required further optimization for visual cleanliness. The investigation of deposit composition in the flash cooler revealed that Enzyme B effectively removed discoloration in the flash cooler, suggesting potential for enzyme-based CIP programs to enhance environmental and safety outcomes.
The study highlights the importance of tailored CIP programs to improve cleaning efficiency, reduce environmental impact, and ensure the safety of personnel. Future work should focus on exploring practical and economic feasibility for the implementation of CIP program #3 that had the best result in the study, as well as further studying and refining enzyme-based detergents as a more sustainable alternative.}},
author = {{Wikman, Kajsa}},
language = {{eng}},
note = {{Student Paper}},
title = {{Cleaning-in-place for oat product processes: Improving the cleaning program of a pilot scale UHT line}},
year = {{2025}},
}