Effects of Fluorolink® S10 surface coating on WPC fouling of stainless steel surfaces and subsequent cleaning

Autor: Jian Huo, Timothy V. Kirk, Jie Xiao, Xiao Dong Chen
Rok vydání: 2019
Předmět:
Zdroj: Food and Bioproducts Processing. 118:130-138
ISSN: 0960-3085
DOI: 10.1016/j.fbp.2019.09.005
Popis: It is reported here that stainless steel surfaces used for heat exchange in the food industry, once modified with Fluorolink® S10, show an improvement in the removal of whey protein fouling. The fouling was created under unfavorable operating conditions (i.e. at a very low fluid velocity). Whey Protein Concentrate (WPC) was used, which is a classic model foulant. Contact angle, surface energy and work of adhesion were measured to examine the surface changes due to the Fluorolink® S10 modification. Surface free energy was reduced from 46.38 to 19.00 mN m−1. In contrast to some reports in the literature, little effect on the extent of fouling was observed here. However, extent of fouling removal was increased ∼75 to 98%. It is suggested that Fluorolink® S10 can be used to improve the cleaning properties of heat exchange surfaces, despite of its much lesser impact on minimizing fouling.
Databáze: OpenAIRE