Diffusivity of potassium sorbate in κ-carrageenan based antimicrobial film

J. H. Choi, W. Y. Choi, D. S. Cha, M. J. Chinnan, Hyun Jin Park, D. S. Lee, J. M. Park

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

The diffusion of potassium sorbate incorporated into κ-carrageenan based antimicrobial film was measured at 5 s intervals using a diffusion cell. The kinetics of potassium sorbate release followed Fick's law of diffusion, as shown by diffusional exponent characteristic n-value and high correlation coefficients between experimental and theoretical data. The effects of solution pH at the film surface (3.8, 5.2 and 7.0) and temperature (5, 25 and 40°C) on diffusion were investigated. Diffusion was found to be unaffected by adjacent solution pH in the range of values tested, but a decrease in temperature from 40 to 5°C resulted in a reduction of diffusion coefficients from 4.24×10-13 to 1.29×10-13 m2/s at pH 5.2.

Original languageEnglish
Pages (from-to)417-423
Number of pages7
JournalLWT - Food Science and Technology
Volume38
Issue number4
DOIs
Publication statusPublished - 2005 Jun 1

Fingerprint

Potassium sorbate
Sorbic Acid
potassium sorbate
Carrageenan
carrageenan
films (materials)
diffusivity
anti-infective agents
Fick's laws
Temperature
temperature
kinetics
Kinetics

Keywords

  • κ-carrageenan
  • Active packaging
  • Diffusivity
  • Potassium sorbate

ASJC Scopus subject areas

  • Food Science
  • Engineering (miscellaneous)

Cite this

Choi, J. H., Choi, W. Y., Cha, D. S., Chinnan, M. J., Park, H. J., Lee, D. S., & Park, J. M. (2005). Diffusivity of potassium sorbate in κ-carrageenan based antimicrobial film. LWT - Food Science and Technology, 38(4), 417-423. https://doi.org/10.1016/j.lwt.2004.07.004

Diffusivity of potassium sorbate in κ-carrageenan based antimicrobial film. / Choi, J. H.; Choi, W. Y.; Cha, D. S.; Chinnan, M. J.; Park, Hyun Jin; Lee, D. S.; Park, J. M.

In: LWT - Food Science and Technology, Vol. 38, No. 4, 01.06.2005, p. 417-423.

Research output: Contribution to journalArticle

Choi, J. H. ; Choi, W. Y. ; Cha, D. S. ; Chinnan, M. J. ; Park, Hyun Jin ; Lee, D. S. ; Park, J. M. / Diffusivity of potassium sorbate in κ-carrageenan based antimicrobial film. In: LWT - Food Science and Technology. 2005 ; Vol. 38, No. 4. pp. 417-423.
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