DOI: 10.1016/j.jcou.2014.03.001
Scopus记录号: 2-s2.0-84898065798
论文题名: Investigation on supercritical CO2 extraction of phenolic-phytochemicals from an epiphytic plant tuber (Myrmecodia pendans)
作者: Sanjaya R.E. ; Tedjo Y.Y. ; Kurniawan A. ; Ju Y.-H. ; Ayucitra A. ; Ismadji S.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2014
卷: 6 起始页码: 26
结束页码: 33
语种: 英语
英文关键词: Ant-nest
; Antioxidant
; DPPH scavenging
; Solubility
; Supercritical extraction
Scopus关键词: Ant-nest
; Antioxidant capacity
; Correlation coefficient
; DPPH free radicals
; Linear correlation
; Supercritical carbon dioxides
; Supercritical extraction
; Total polyphenols
; Antioxidants
; Extraction
; Flavonoids
; Free radicals
; Phenols
; Scavenging
; Solubility
; Supercritical fluid extraction
; Carbon dioxide
英文摘要: Myrmecodia pendans (ant-nest) is an epiphytic plant with rich content of phytochemicals. In this work, the application of supercritical carbon dioxide (SC-CO2) for extracting several polyphenol and flavonoid compounds from ant-nest tuber include gallic acid, catechin, ferulic acid, caffeic acid, p-coumaric acid, quercetin, luteolin and kaempferol was investigated. Static-analytical extraction experiments were performed at pressures ranged between 9-22.5 MPa and temperatures of 313.15-343.15 K for 6-7 h. Solubility data of total polyphenols (gram gallic acid equivalent (GAE)/L CO2) and total flavonoids (gram quercetin equivalent (QE)/L CO2) were modeled using Chrastil and Del Valle-Aguilera density-based equations. Both equations were able to represent actual solubilities satisfactorily in terms of correlation coefficient and parameter consistency. DPPH-scavenging test showed high antioxidant capacity of supercritical extract with an IC50 level of 3.62 ± 0.12 mg/mL. It was observed a positive linear correlation between bioactive contents of antioxidant extract and the potency of scavenger activity against DPPH free radical. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52992
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Sanjaya R.E.,Tedjo Y.Y.,Kurniawan A.,et al. Investigation on supercritical CO2 extraction of phenolic-phytochemicals from an epiphytic plant tuber (Myrmecodia pendans)[J]. Journal of CO2 Utilization,2014-01-01,6