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Pectin‐based biodegradable water insoluble films
Author(s) -
Pavlath Attila E.,
Voisin Alexandre,
Robertson George H.
Publication year - 1999
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19991400112
Subject(s) - pectin , ultimate tensile strength , aqueous solution , zinc , chemical engineering , materials science , water resistance , copper , hard water , composite material , chemistry , organic chemistry , metallurgy , food science , engineering
Aqueous solutions of pectin, an acidic polysaccharide which occurs in various natural products, was cast into clear films. While the films were flexible enough to be used as wrapping materials, their strength and resistance to water were inferior to presently used commercial films. However, precast films immersed into aqueous solutions of multivalent cations became insoluble in water and depending on the ions became stronger in tension. Tensile strength increased to levels comparable to, or in the case of calcium, copper(II) and zinc, greater than those of some commercial wrapping materials