Abstract
Toxic mineral oils can migrate into foods from cardboard
boxes made of recycled fibers. This is an emerging issue
for the whole dry-food-packaging industry. Breakfast
cereals, for example, are typically packaged in boxes
with or without inner bags and consumed without further
processing. Currently, fossil-based high-density
polyethylene (HDPE) films are used as a major raw
material for such inner bags. However, HDPE is a very
poor barrier against mineral-oil migration. Biobased
coatings from cellulose nanofibrils (CNFs),
hydroxypropylated xylan, and hydroxypropylated cellulose
were applied onto biobased high-density polyethylene
(bio-HDPE) films, and the mineral-oil barrier properties
were evaluated. All of the coated films significantly
decreased the migration of ndecane, isobutylbenzene,
1-cyclohexylbutane, 1-cyclohexylheptane, and
1-cyclohexyldecane. Biobased barrier bags prepared from
(2,2,6,6-tetramethylpiperidin-1-yl)oxy oxidized CNF
coated bio-HDPE film protected the content to a great
extent from mineral-oil migration compared to noncoated
bio-HDPE and other commercial breakfast cereal-bag films.
| Original language | English |
|---|---|
| Article number | APP44586 |
| Journal | Journal of Applied Polymer Science |
| Volume | 134 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2017 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- biopolymers and renewable polymers
- cellulose and other wood products
- coatings
- packaging
- polysaccharides
