DOI: 10.1016/j.jcou.2018.01.005
Scopus记录号: 2-s2.0-85043760485
论文题名: Supercritical carbon dioxide extraction of Melaleuca cajuputi leaves for herbicides allelopathy: Optimization and kinetics modelling
作者: Kueh B.W.B. ; Yusup S. ; Osman N.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 24 起始页码: 220
结束页码: 227
语种: 英语
英文关键词: Allelopathy
; Caryophyllene
; Melaleuca cajuputi
; Optimization
; Supercritical extraction
; Volatile oil
Scopus关键词: Biology
; Carbon dioxide
; Chemical analysis
; Chromatography
; Essential oils
; Gas chromatography
; Herbicides
; Ionization of gases
; Mass spectrometry
; Optimization
; Regression analysis
; Supercritical fluid extraction
; Volatile organic compounds
; Weed control
; Allelopathy
; Caryophyllene
; Melaleuca cajuputi
; Supercritical extraction
; Volatile oil
; Extraction
英文摘要: Due to the rice production problem, control of paddy weeds with the use of allelopathy as active compounds serve as new alternative for sustainable weeds management. The volatile oil from Melaleuca cajuputi which has possible active allelopathy compound present is extracted and analyzed. Response Surface Methodology (RSM) with central composite rotatable design (CCRD) is used to design the experiment for optimization of supercritical carbon dioxide (SC-CO2) extraction of volatile oil from Melaleuca cajuputi leaves for maximum oil yield. Three factors which included carbon dioxide (CO2) flow rate (4–7 ml/min), temperature (40–55 ℃) and pressure (14–26 MPa) were investigated. The regression model shows a good prediction with coefficient of determination, R2 of 0.9607. The optimum condition of SC-CO2 extraction is determined to be at CO2 flow rate of 5.88 ml/min, temperature of 43.10℃ and pressure of 24.91 MPa with the prediction yield of 1.24 wt%. The optimum condition is validated with experimental runs which gives an average yield of 1.26 wt% which indicates good agreement between the measured and predicted value. The chemical composition of the volatile oil at optimized condition is analyzed using Gas Chromatography Mass Spectrometry (GC–MS) and Gas Chromatography with Flame Ionization Detector (GC-FID). Caryophyllene and humulene are the two major sesquiterpenes detected from the optimized condition. Thus, volatile oil extract from the foliage of Melaleuca cajuputi can be considered as potential source for bio-herbicides due to the presence of caryophyllene which has allelopathic effect. Kinetics studies are also studied with modified Reverchon-Sesti Osseo as the model fitting. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111971
Appears in Collections: 气候减缓与适应
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作者单位: Biomass Processing Laboratory, Centre for Biofuel and Biochemical Research, Institute of Sustainable Living, Universiti Teknologi PETRONAS, Perak, Seri Iskandar 32610, Malaysia
Recommended Citation:
Kueh B.W.B.,Yusup S.,Osman N.. Supercritical carbon dioxide extraction of Melaleuca cajuputi leaves for herbicides allelopathy: Optimization and kinetics modelling[J]. Journal of CO2 Utilization,2018-01-01,24