Sorption Behavior of Flavor Compounds into Packaging Films from Ethanol Solution

Masaomi Fukamachi, Toshiro Matsui, Yoon Hee Hwang, Mitsuya Shimoda, Yutaka Osajima

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The sorption of flavor compounds into low-density polyethylene (LDPE) and ethylene-vinyl alcohol copolymer (EVOH) films was greatly influenced by ethanol concentration, and maximal sorptions were observed at 5-10% (v/v) ethanol for LDPE and 10-20% (v/v) ethanol for EVOH. The sorptions of ethyl hexanoate, octanal, and octanol into LDPE film were ∼1.7, 16.5, and 2.5 times higher than those in the 0% (v/v) ethanol solution, respectively (for EVOH film, the sorption increments of these compounds were ∼6.2, 3.5, and 4.1 times, respectively). To better understand this phenomenon, the solvent properties of ethanol solutions were investigated. The dielectric constants were roughly unchanged in the range 5-15% (v/v) ethanol. According to the results obtained by 1H NMR measurement, in which the difference in proton chemical shift from water-d (HDO) and ethyl alcohol-d (EtOD) became maximum at 23% (v/v) ethanol solution, the structural change of water induced by the addition of ethanol would be great up to 23% (v/v) ethanol. These results accurately reflected the sorption behavior. Therefore, the specific sorption behavior of flavor compounds from an ethanol solution would be brought about by the heterogeneous water-ethanol structure.

Original languageEnglish
Pages (from-to)2810-2813
Number of pages4
JournalJournal of Agricultural and Food Chemistry
Volume44
Issue number9
DOIs
Publication statusPublished - Jan 1 1996

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Flavor compounds
packaging films
flavor compounds
Product Packaging
sorption
Sorption
Packaging
Ethanol
ethanol
Polyethylene
films (materials)
polyethylene
Water
Octanols
octanol
polyethylene film
composite polymers
water
Chemical shift

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)

Cite this

Sorption Behavior of Flavor Compounds into Packaging Films from Ethanol Solution. / Fukamachi, Masaomi; Matsui, Toshiro; Hwang, Yoon Hee; Shimoda, Mitsuya; Osajima, Yutaka.

In: Journal of Agricultural and Food Chemistry, Vol. 44, No. 9, 01.01.1996, p. 2810-2813.

Research output: Contribution to journalArticle

Fukamachi, Masaomi ; Matsui, Toshiro ; Hwang, Yoon Hee ; Shimoda, Mitsuya ; Osajima, Yutaka. / Sorption Behavior of Flavor Compounds into Packaging Films from Ethanol Solution. In: Journal of Agricultural and Food Chemistry. 1996 ; Vol. 44, No. 9. pp. 2810-2813.
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