Selective extraction and separation of oxymatrine from Sophora flavescens Ait. extract by silica-confined ionic liquid

Bi, Wentao; Tian, Minglei; Row, Kyung Ho

doi:10.1016/j.jchromb.2011.11.025

Cited by 46 publications

(26 citation statements)

References 26 publications

(30 reference statements)

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“…The authors 119 optimized various process variables, such as the IL alkyl side chain length and anion nature, temperature, contact time, and solid–liquid ratio. Short chain imidazolium ILs were shown to be the most effective.…”

Section: Small and Extractable Bioactive Compounds From Biomassmentioning

confidence: 99%

Ionic-Liquid-Mediated Extraction and Separation Processes for Bioactive Compounds: Past, Present, and Future Trends

et al. 2017

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Ionic liquids (ILs) have been proposed as promising media for the extraction and separation of bioactive compounds from the most diverse origins. This critical review offers a compilation on the main results achieved by the use of ionic-liquid-based processes in the extraction and separation/purification of a large range of bioactive compounds (including small organic extractable compounds from biomass, lipids, and other hydrophobic compounds, proteins, amino acids, nucleic acids, and pharmaceuticals). ILs have been studied as solvents, cosolvents, cosurfactants, electrolytes, and adjuvants, as well as used in the creation of IL-supported materials for separation purposes. The IL-based processes hitherto reported, such as IL-based solid–liquid extractions, IL-based liquid–liquid extractions, IL-modified materials, and IL-based crystallization approaches, are here reviewed and compared in terms of extraction and separation performance. The key accomplishments and future challenges to the field are discussed, with particular emphasis on the major lacunas found within the IL community dedicated to separation processes and by suggesting some steps to overcome the current limitations.

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Section: Small and Extractable Bioactive Compounds From Biomassmentioning

confidence: 99%

Ionic-Liquid-Mediated Extraction and Separation Processes for Bioactive Compounds: Past, Present, and Future Trends

et al. 2017

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“…Another study highlighted the application of a two-step extraction method for the extraction and separation of oxymatrine from a S. flavescens Ait extract using IL-based silica as the sorbent [182]. The optimized IL-based silica was first mixed with the plant extract to adsorb oxymatrine.…”

Section: Application Of Il-based Silica On Bioactive Compoundsmentioning

confidence: 99%

Application of ionic liquid for extraction and separation of bioactive compounds from plants

Tang

Tian

et al. 2012

Journal of Chromatography B

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214

120

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“…This was attributed to steric hindrance of the alkyl chain. On the ohtre hand, separation of the target was dominated by the influence of the bonding density rather than by the interactions between the target and siILs 10 . Purification of the three flavons by MPE: Table-3 lists the amount of the three flavones obtained after MPE.…”

Section: Resultsmentioning

confidence: 99%

“…eluting, but the MPE method combines the extraction and loading steps to decrease the processing time 10 .…”

mentioning

confidence: 99%

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Purification of Three Flavones from Chamaecyparis obtusa by Multi-Phase Extraction using Anion-Exchange Imidazolium Silica

Lee¹,

Row²

2014

Asian J. Chem.

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INTRODUCTION Chamaecyparis obtusa (C. obtusa) is a member of the cypress family Cupressaceae, which is commonly known as Kiso-Hinoki in Japan 1. The essential oils extracted from the leaves of the C. obtusa tree are generally used as a functional additive with a good fragrance in soaps, toothpastes and cosmetics 2. C. obtusa plants have been found to contain bioactive compounds, such as quercetrin, myricetin and amentoflavone (Fig. 1), some of which exhibit antioxidant 3 , antibacterial, antitumor, antifungal and anti-mite 4,5. Ionic liquids (ILs) have attractive properties, such as hydrophobicity, miscibility with several inorganic/organic solvents and π-π interactions between the analyte and functional groups of the ionic liquids. The ionic liquids are used in chemical reactions and separation 6. Ionic liquids are also used as stationary phases in HPLC and solid-phase extraction (SPE) sorbents, bonding them to silica and hence constituting silica-confined ionic liquids (SiILs) 7. Solid-phase extraction used widely for the clean-up of analytical samples, as well as for the purification of range of chemicals in the 1970s 8. On the other hand, SPE has disadvantages, such as the low interactions between sorbent and target compounds, which results in, a loss of the target compounds and low selectivity 9. To overcome the disadvantages of SPE, multi-phase extraction (MPE) was developed to clean-up solid samples. The solid sample and sorbent were packed into a SPE cartridge. The first step was removing the impurities. This method uses the classical solid-liquid or SPEs. Solid-phase extraction generally involves extracting, loading, washing and

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Selective extraction and separation of oxymatrine from Sophora flavescens Ait. extract by silica-confined ionic liquid

Cited by 46 publications

References 26 publications

Ionic-Liquid-Mediated Extraction and Separation Processes for Bioactive Compounds: Past, Present, and Future Trends

Ionic-Liquid-Mediated Extraction and Separation Processes for Bioactive Compounds: Past, Present, and Future Trends

Application of ionic liquid for extraction and separation of bioactive compounds from plants

Purification of Three Flavones from Chamaecyparis obtusa by Multi-Phase Extraction using Anion-Exchange Imidazolium Silica

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