Analysis of complex interdependencies between soil-specific properties and cleaning behavior in the food industry by using a decision tree

Research output: Contribution to journalResearch articleContributedpeer-review

Abstract

Plate heat exchangers are commonly used for food processing, but tend to foul rapidly. Frequent cleaning guarantees product safety and quality, but accounts for high consumption of water, chemicals, energy, and time. Targeted soil characterization is essential for cleaning cost reduction. The effects of soil properties on cleaning are difficult to estimate since the interdependencies are complex. Principal component analysis and a decision tree were used to comprehend this complexity. A variety of carbohydrates formed the basis of the statistical exploration (eight native and modified starches, guar gum, xanthan, pudding, and whey protein isolate). Method adjustments allowed the characterization of soils during contact with different cleaning fluids. Solubility, fluid binding capacity, swelling-induced thickness increase, rheological properties, and pull-off forces were characterized. The cleaning time was obtained from planar channel flow experiments. The decision tree revealed an ordered relevance of the soil properties on cleaning. The effects are largely determined by the active cleaning mechanisms, which were quantified to help explain the results.

Details

Original languageEnglish
Article number81
JournalHeat and Mass Transfer
Volume61
Issue number9
Publication statusPublished - 16 Aug 2025
Peer-reviewedYes

Conference

TitleHeat Exchanger Fouling and Cleaning XV 2024
Conference number15
Duration21 - 26 April 2024
Website
Degree of recognitionInternational event
LocationDolce CampoReal Lisboa
CityTorres Vedras
CountryPortugal

External IDs

Scopus 105013190156
ORCID /0000-0001-9391-4407/work/191038368
ORCID /0000-0002-5214-399X/work/191039965
ORCID /0000-0002-9338-970X/work/191039999
ORCID /0000-0002-1914-8473/work/191040724

Keywords

Keywords

  • Lebensmittelindustrie, Reinigung, Eigenschaften, Wechselwirkungen, Entscheidungsbaumverfahren