Premium
Transport of Oleic and Acetic Acids from Emulsions into Low Density Polyethylene; Effects on Adhesion with Aluminum Foil in Laminated Packaging
Author(s) -
OLAFSSON GRIMUR,
HILDINGSSON INGEMAR,
BERGENSTÅHL BJÖRN
Publication year - 1995
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1995.tb05685.x
Subject(s) - oleic acid , acetic acid , emulsion , low density polyethylene , permeation , polyethylene , chemistry , aluminum foil , foil method , materials science , chemical engineering , organic chemistry , composite material , layer (electronics) , biochemistry , membrane , engineering
Three test emulsions were prepared by adding oleic acid and/or acetic acid to a fatty food simulant (oil‐in‐water emulsion) from rapeseed oil, using Tween‐80 as emulsifier. These test emulsions and the blank were packed in laminated material and stored for 4 wk at room temperature (21°C). Sorption of oleic acid into LDPE and the rate of acetic acid permeation through LDPE were highest for emulsions containing both oleic and acetic acids. A complete delamination within 4–7 days occurred for all acid‐containing test‐emulsions, probably caused by formation of a weak boundary layer (WBL).