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Low methoxylated pectin for preparation of an intelligent functional sheet with responsiveness to sodium ions
Author(s) -
Ichiura Hideaki,
Matsuike Tomoko,
Ohtani Yoshito
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.37902
Subject(s) - ellagic acid , pectin , sodium , chemistry , water soluble , polyethylene , calcium , chloride , organic chemistry , polymer chemistry , nuclear chemistry , polyphenol , food science , antioxidant
A functional film is formed on a polyethylene nonwoven sheet by reaction of low methoxylated pectin with calcium chloride (CaCl 2 ) in the presence of ellagic acid. The film contains ellagic acid and functions as an intelligent material by releasing the ellagic acid in the presence of sodium ions. This response results from conversion of the water‐insoluble pectin film to water‐soluble pectin. The film with the best release of ellagic acid is produced using 0.5% CaCl 2 and 0.2% water‐soluble pectin solutions. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013