Degradation and formation of wood odorant β-cyclocitral during permanganate oxidation

Ke Jia Zhang, Nai Yun Gao, Hung Kai Yen, Yi Ting Chiu, Tsair-Fuh Lin

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The effect of permanganate oxidation on the formation and degradation of wood odorant β-cyclocitral in water was investigated. Oxidation experiments were conducted for β-cyclocitral prepared from pure chemicals and extracted from Microcystis aeruginosa. The data were simulated with appropriate kinetic rate models. The formation and degradation of β-cyclocitral during the oxidation of β-carotene were also monitored and modeled. The degradation of β-cyclocitral prepared from pure chemicals followed second-order kinetics with a rate constant of 91.7±2.4M-1s-1, and that of the β-cyclocitral precursor, β-carotene, followed first-order kinetics with a rate constant of 0.0054±0.0004min-1. During the oxidation of β-carotene, β-cyclocitral was produced. The formation and degradation can both be simulated by first-order kinetics with respect to β-carotene and β-cyclocitral concentrations, respectively. The degradation rate of β-cyclocitral produced from β-carotene was found to be much slower than that for β-cyclocitral obtained from pure chemicals, very likely due to a mass transfer limitation. The kinetic models were further employed to simulate the oxidation of β-cyclocitral in the presence of β-carotene and for β-cyclocitral extracted from M. aeruginosa, respectively. The models well predict/fit the experimental data, with rate constants similar to other experiments, indicating that the models may be used for simulating the formation and degradation of β-cyclocitral in water treatment systems.

Original languageEnglish
Pages (from-to)362-368
Number of pages7
JournalJournal of Hazardous Materials
Volume194
DOIs
Publication statusPublished - 2011 Oct 30

Fingerprint

Carotenoids
Wood
oxidation
Degradation
Oxidation
degradation
kinetics
Kinetics
Microcystis
Rate constants
Water Purification
Water treatment
permanganic acid
Odorants
mass transfer
water treatment
Mass transfer
experiment
Experiments
rate

All Science Journal Classification (ASJC) codes

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Waste Management and Disposal
  • Environmental Chemistry
  • Environmental Engineering

Cite this

Zhang, Ke Jia ; Gao, Nai Yun ; Yen, Hung Kai ; Chiu, Yi Ting ; Lin, Tsair-Fuh. / Degradation and formation of wood odorant β-cyclocitral during permanganate oxidation. In: Journal of Hazardous Materials. 2011 ; Vol. 194. pp. 362-368.
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Degradation and formation of wood odorant β-cyclocitral during permanganate oxidation. / Zhang, Ke Jia; Gao, Nai Yun; Yen, Hung Kai; Chiu, Yi Ting; Lin, Tsair-Fuh.

In: Journal of Hazardous Materials, Vol. 194, 30.10.2011, p. 362-368.

Research output: Contribution to journalArticle

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