Cleaning of Starchy Soils in Clean-in-Place (CIP) Systems: Relationship Between Contact Angle and Detergency

• Published in: Journal of dispersion science and technology Vol. 37; no. 3; pp. 317 - 325
• Main Authors: Jurado Alameda, Encarnación, Altmajer Vaz, Deisi, García Román, Miguel, Siqueira Curto Valle, Rita de Cássia
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis 03.03.2016; Taylor & Francis Ltd
• Subjects: Alkylpolyglucosides; Cleaning; cleaning process; Contact angle; Ethers; lauramine oxide; Oxides; Polyoxyethylene; polyoxyethylene alkyl ethers; Soils; starch; Starches; Surfactants
• ISSN: 0193-2691; 1532-2351
• DOI: 10.1080/01932691.2014.1003223

The cleaning of hard surfaces soiled with starch films using nonionic (alkylpolyglucosides and polyoxyethylene alkyl ethers) and zwitterionic (lauramine oxide) surfactant solutions has been investigated. Response surface methodology was applied to determine the effect of the composition of the cleaning solution on detergency, as well as the relationship between the contact angle of surfactant solutions on starch films and the removal efficacy of such films. The surfactants with a higher capacity for the removal of starch films were lauramine oxide and alkylpolyglucosides, and their mixtures. The effect of polyoxyethylene alkyl ethers was also statistically significant; however, their contribution to soil removal was very low. A correlation between contact angle and detergency for starchy soils was found, and the importance of the hydration process of the starch film on its removal was established.