Solubility of luteolin in several imidazole-based ionic liquids and extraction from peanut shells using selected ionic liquid as solvent

Ge, Li; Xia, Fanjie; Yi, Song; Yang, Kang; Qin, Zuzeng; Li, Lishuo

doi:10.1016/j.seppur.2014.08.022

Cited by 20 publications

(8 citation statements)

References 27 publications

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“…The effect of extraction time on the extraction yield of luteolin from peanut shells were investigated in Figure . Initially, the extraction yield of luteolin increased, but when the time was over 16 min, the extraction yield appeared little change, which was in agreement with a previous study . Thus, the optimal extracting time was 16 min.…”

Section: Resultssupporting

confidence: 91%

Extraction of Luteolin from Peanut Shells by A Hydrophilic Ionic Liquid‐based Microwave‐assisted Method

et al. 2019

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An ionic liquid-based microwave-assisted extraction method was developed to extract luteolin from peanut shells effectively. A series of hydrophilic 1-alkyl-3-methylimidazolium ionic liquids with different anions (Br À , Cl À and BF 4 À ) and different cations ([C 2 mim] + , [C 4 mim] + , [C 8 mim] + and [C 10 mim] + ) were screened, and [C 10 mim]Br was found to be the optimal extraction solvent. The reason is that when the cations are the same, the hydrogen bonding between Br À and the phenolic hydroxyl group on luteolin is the strongest; when the anions are the same, the carbon chain growth enhances the van der Waals force between the ionic liquid and the luteolin. The concentration of ionic liquid, extraction temperature, liquidsolid ratio and extraction time were optimized by both single factor experiments and response surface methodology. Under the optimized conditions of [C 10 mim]Br concentration 1.00 mol/ L, extraction temperature 85°C, liquid-solid ratio 11.63:1 mL/g, extraction time 12 min, the extraction yield of luteolin reached 80.36 � 0.67%. In addition, compared with conventional solvents, [C 10 mim]Br showed an excellent extraction yield to extracting luteolin from peanut shells .

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Section: Resultssupporting

confidence: 91%

Extraction of Luteolin from Peanut Shells by A Hydrophilic Ionic Liquid‐based Microwave‐assisted Method

et al. 2019

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“…Peanut ( Arachis hypogaea L. ), being classified an annual legume plant, is a very important source of food and edible oil all over the world [1] . Peanut shell is a major waste by-product after peanut processed, and 60 million tons of the world annual production of peanuts may produce more than 18 million tons of shells, and the quantity is still increasing according to previous reports [2] , [3] . Only a small quantity of peanut shells are made into cattle feed, whereas the rest of the vast majority of peanut shells are usually used as fuel for cooking and heating, and even discarded as a waste, which may lead to environmental pollution and waste of resources [4] .…”

Section: Introductionmentioning

confidence: 99%

“…For extraction of flavonoids as well as other flavonoids components from fruits and rhizomes of legume plants, different extraction methods including conventional solvent extraction, Soxhlet extraction, heat reflux extraction, continuous-flow microextraction, Enzyme-assisted extraction have been already reported in the literature [3] , [10] , [11] , [12] , [13] . Moreover, advanced extraction methods based on microwave assisted extraction [14] , supercritical carbon dioxide extraction [10] , high voltage electrical discharges extraction [15] , ultrasound-assisted extraction [16] , [17] and ultrasound-assisted enzymatic extraction [18] have also been investigated.…”

Section: Introductionmentioning

confidence: 99%

Process intensification and kinetic studies of ultrasound-assisted extraction of flavonoids from peanut shells

Liao

Guo

2021

Ultrasonics Sonochemistry

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Highlights Flavonoids was extracted from peanut shells using an ultrasound-assisted process. Ultrasound used as intensification tool with highest flavonoids yield of 9.263 mg/g. UAE gave higher yield as compared with that of SE and HRE. Phenomenological model was fitted for kinetic modelling and it’s validation. Comparison of two models have been introduced to describe the extraction kinetic of flavonoids.

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“…Ionic liquids not only have the ability to dissolve and pretreat complex raw materials, but they can be also designed to selectively extract target compounds due to their tailoring ability. Nonetheless, when compared with their use in the extraction of value added products from biomass (Passos et al, 2014), few studies addressed the ILs application in the recovery of value added compounds from real food waste (Lateef et al, 2009; Bi et al, 2010; Qin et al, 2010; Bica et al, 2011; Guolin et al, 2012; Setoguchi et al, 2012; Cláudio et al, 2013, 2018; Jiao et al, 2013; Ge et al, 2014; Hernoux-Villière et al, 2014; Zhang et al, 2015, 2017; de Faria et al, 2017; Oberleitner et al, 2017; Mizuno and Usuki, 2018). Most of these studies employed imidazolium-based ILs to recover antioxidants, vitamins, fats, sugars, and essential oils from different types of food and food waste, such as tea, fruits, vegetables, crustaceans, or used oils.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Separation of Antioxidants and Carbohydrates From Food Wastes Using Aqueous Biphasic Systems Formed by Cholinium-Derived Ionic Liquids

et al. 2019

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The food industry produces significant amounts of waste, many of them rich in valuable compounds that could be recovered and reused in the framework of circular economy. The development of sustainable and cost-effective technologies to recover these value added compounds will contribute to a significant decrease of the environmental footprint and economic burden of this industry sector. Accordingly, in this work, aqueous biphasic systems (ABS) composed of cholinium-derived bistriflimide ionic liquids (ILs) and carbohydrates were investigated as an alternative process to simultaneously separate and recover antioxidants and carbohydrates from food waste. Aiming at improving the biocompatible character of the studied ILs and proposed process, cholinium-derived bistriflimide ILs were chosen, which were properly designed by playing with the cation alkyl side chain and the number of functional groups attached to the cation to be able to create ABS with carbohydrates. These ILs were characterized by cytotoxicity assays toward human intestinal epithelial cells (Caco-2 cell line), demonstrating to have a significantly lower toxicity than other well-known and commonly used fluorinated ILs. The capability of these ILs to form ABS with a series of carbohydrates, namely monosaccharides, disaccharides and polyols, was then appraised by the determination of the respective ternary liquid-liquid phase diagrams at 25°C. The studied ABS were finally used to separate carbohydrates and antioxidants from real food waste samples, using an expired vanilla pudding as an example. With the studied systems, the separation of the two products occurs in one-step, where carbohydrates are enriched in the carbohydrate-rich phase and antioxidants are mainly present in the IL-rich phase. Extraction efficiencies of carbohydrates ranging between 89 and 92% to the carbohydrate-rich phase, and antioxidant relative activities ranging between 65 and 75% in the IL-rich phase were obtained. Furthermore, antioxidants from the IL-rich phase were recovered by solid-phase extraction, and the IL was recycled for two more times with no losses on the ABS separation performance. Overall, the obtained results show that the investigated ABS are promising platforms to simultaneously separate carbohydrates and antioxidants from real food waste samples, and could be used in further related applications foreseeing industrial food waste valorization.

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Solubility of luteolin in several imidazole-based ionic liquids and extraction from peanut shells using selected ionic liquid as solvent

Cited by 20 publications

References 27 publications

Extraction of Luteolin from Peanut Shells by A Hydrophilic Ionic Liquid‐based Microwave‐assisted Method

Extraction of Luteolin from Peanut Shells by A Hydrophilic Ionic Liquid‐based Microwave‐assisted Method

Process intensification and kinetic studies of ultrasound-assisted extraction of flavonoids from peanut shells

Simultaneous Separation of Antioxidants and Carbohydrates From Food Wastes Using Aqueous Biphasic Systems Formed by Cholinium-Derived Ionic Liquids

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