Release kinetics of ethylene gas from ethylene-alpha-cyclodextrin inclusion complexes

Ho, Binh T., Joyce, Daryl C. and Bhandari, Bhesh R. (2011) Release kinetics of ethylene gas from ethylene-alpha-cyclodextrin inclusion complexes. Food Chemistry, 129 2: 259-266. doi:10.1016/j.foodchem.2011.04.035


Author Ho, Binh T.
Joyce, Daryl C.
Bhandari, Bhesh R.
Title Release kinetics of ethylene gas from ethylene-alpha-cyclodextrin inclusion complexes
Formatted title
Release kinetics of ethylene gas from ethylene-α-cyclodextrin inclusion complexes
Journal name Food Chemistry   Check publisher's open access policy
ISSN 0308-8146
1873-7072
Publication date 2011-11
Sub-type Article (original research)
DOI 10.1016/j.foodchem.2011.04.035
Volume 129
Issue 2
Start page 259
End page 266
Total pages 8
Place of publication Amsterdam , The Netherlands
Publisher Elsevier
Collection year 2012
Language eng
Formatted abstract
Ethylene was included into α-cyclodextrin (α-CD) by molecular encapsulation. Characterisation of the ethylene–α-CD inclusion complexes (ICs) using X-ray diffractometry (XRD) and scanning electron microscopy (SEM) confirmed their crystalline structures. Release kinetics of ethylene gas from the ICs was investigated. Release characteristics experiments were carried out at various relative humidities (RH) (52.9%, 75.5%, and 93.6%) and temperatures (45, 65, 85, and 105 °C). The Power Law and Avrami’s equations were used to analyse release kinetics. The latter showed better fit for ethylene release. Kinetics analysis based on Avrami’s equation showed that the release of ethylene was accelerated by increases in RH and temperature. For humidity treatments, the release parameter n represented a diffusive mechanism at 52.9% and 75.5% RH and a first-order mode at 93.6% RH. However, a diffusive mechanism was found in all temperature experiments. Release rate constants increased as a function of increasing temperature. Temperature coefficient (Q10), activation energy (Ea) and half-life release of ethylene gas were also analysed.
Keyword Ethylene gas
Release kinetics
Controlled release
Inclusion complexes
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Agriculture and Food Sciences
 
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