121st General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code MAT.P-376
Subject Fabrication of antibacterial Fe(III)-tannic acid film and its application in food industry
Authors Hee Chul Moon, INSUNG CHOI*
Department of Chemistry, Korea Advanced Institute of Science and Technology, Korea
Abstract Fabrication of polyphenol-metal complex thin film was attracted considerable attention in numerous fields. The solution based polyphenol-metal complexation, the most common technique, has a definite limit to the practical applications like the coating of bulk substrates. In this respect, we developed spray-assisted, highly efficient thin film coating method with polyphenol-metal complex of tannic acid and ferric ions. The developed spray method was accomplished extremely fast, less than 5 seconds, process and material independency. In addition, the spray method was successfully applied in common goods, such as mandarin oranges and strawberries. Due to the antibacterial effect of the tannic acid complex, the spray coated fruits maintained its freshness for significantly longer time. This study suggests promising method for a practical application in the perishable food industry.
E-mail arbalest@kaist.ac.kr