6533b7d0fe1ef96bd125b5e8
RESEARCH PRODUCT
Methyl cellulose-based edible films and coatings I. Effect of plasticizer content on water and 1-octen-3-ol sorption and transport
Frédéric DebeaufortAndrée Voilleysubject
Materials sciencePolymers and PlasticsPlasticizerfood and beveragesSorptionPermeationchemistry.chemical_compoundChemical engineeringchemistryMethyl celluloseOrganic chemistryAroma compoundGas chromatographySolubilityEthylene glycoldescription
Edible films were prepared from methyl cellulose with various concentrations of poly(ethylene glycol) 400 (PEG400) used as a plasticizer. Water vapour and 1-octen-3-ol (an aroma compound) were selected as hydrophilic and hydrophobic volatile penetrants respectively. Their solubility and permeability through methyl cellulose-based edible films were studied using gas chromatography methods. Whatever penetrant was used, the flux increased with the PEG400 content. Transfer behaviour, i.e., the order of increased magnitude of the transfer rate, strongly depends on the nature of the volatile compound. However, water sorption only depends on the PEG400 content whereas the aroma compound sorption is affected by both the water and the PEG400 concentrations. Relationships between solubility and permeability can be partially explained by the plasticization phenomenon.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-09-01 | Cellulose |