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supercritical fluid extraction of bioactives from fruit waste and its therapeutic potential

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Food Bioscience 2023年第2期52卷 1406-1420页

作者： Aratrika Ray Kriti Kumari Dubey Sandesh J.Marathe Rekha Singhal Department of Food Engineering and Technology Institute of Chemical TechnologyMumbaiIndia Department of Chemical Engineering Indian Institute of Technology BombayMumbaiIndia

Fruits are a rich source of bioactive compounds and form a major component of the total horticultural ***,fruit wastes that contains a wide range of bioactive compounds such as phenolics,minerals,dietary fibre,vitamins,oils,and enzymes,to name a few,are *** post-processing by-products of fruit processing industries include the peel,pomace,and *** to the presence substantial contents of bioactive compounds,these fruit by-products have been explored for the recovery of bioactives using several extraction *** the various techniques studied for the extraction of bioactives,supercritical fluid extraction(SCFE)has captured the interest of researchers,mainly because it overcomes the limitations posed by conventional extraction *** review discusses SCFE as a green technique for the extraction of bioactives(polyphenols,vitamins,pigments and fatty acids)from fruit wastes,and factors that affect SCFE ***,the bioactivities of these components such as anti-diabetic,anti-oxidants,anti-inflammatory,anti-microbial,anti-cancer,cardioprotective,and neuroprotective agents have been ***,future prospects of using SCFE for ensuring optimal extraction of bioactives and their potential biological and food applications have been discussed.

关键词： supercritical fluid extraction Fruit waste Bioactive compounds Therapeutic Pharmaceutical applications

supercritical fluid extraction of a Novel Template from Mesoporous Zirconia and the Effect on Porous Structure

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Chinese Journal of Chemical Engineering 2013年第6期21卷 698-700页

作者： MA Fu ZHAO Hongjian Department of Chemical Engineering Nmgxia Teachers University Guyuan 756000 China

Mesoporous zirconia was synthesized by a new and simple method. Zirconium n-propoxide was used as the zirconium source. A small, inexpensive nonsurfactant, triethanolamine, was used as the template. The template was removed by thermal treatment in air and supercritical fluid extraction using CO2. The structure of the resulting materials was characterized by X-ray diffraction, transmission electron microscopy, and N2 adsorption-desorption analyses. The materials are found to have narrowly distributed average pore diameters and wormhole-like pore channels. However, higher surface area and larger pore volume are exhibited after supercritical fluid extraction with CO2. The removal of the template by thermal treatment also leads to condensation and mild shrinkage of the zirconia framework.

关键词： mesoporous zirconia triethanolamine structure calcination supercritical fluid extraction

Fast analysis of derivatives of polycyclic aromatic hydrocarbons in soil by ultra-high performance supercritical fluid chromatography after supercritical fluid extraction enrichment

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Petroleum Science 2021年第6期18卷 1860-1866页

作者： Ye-Hua Han Li-Min Ren Yan-Fen Zhang Ying-HaoWang Cheng-Long Dong Jing Xie Yu-Chi Zhang Wen Zhou State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249China Hubei Key Laboratory of Processing and Application of Catalytic Materials Huanggang Normal UniversityHuanggang 438000China

An efficient and environment-friendly method for simultaneous determination of 13 typical derivatives of polycyclic aromatic hydrocarbon(PAH)in petroleum-polluted soil with nitro-,oxy-and alkylfunctional group was developed using supercritical fluid extraction(SFE)followed by ultra-high performance supercritical fluid chromatography(UHPSFC).Parameters of UHPSFC,including type of stationary phase and mobile phase modifiers,gradient elution process,backpressure,column temperature,and the flow rate of mobile phase,were systematically optimized,achieving a fast separation within4.2 *** of detection(LOD)were 0.005-0.1μg mL^(-1)or 0.1-2.0 ng g^(-1),respectively,with a good repeatability(RSD<5.0%).Before UHPSFC-PDA analysis,the PAH-derivatives in soil samples were effectively enriched in 15.0 min using SFE with an online carbon nanotubes(CNTs)collection *** soil samples were analyzed by the proposed method and the results were verified by ***,SFE equipped with an online CNTs trap followed by UHPSFC-PDA analysis,which only consumed about2.0 mL organic solvent for a whole run,has been demonstrated to be an efficient way for screening and quantitative analysis of trace-level PAH-derivatives in soil samples.

关键词： Ultra-high performance supercritical fluid chromatography Derivatives of polycyclic aromatic hydrocarbons supercritical fluid extraction Fast separation Pollutant screening Quantitative analysis

Advent of clean and green technology for preparation of low-cholesterol dairy cream powder:supercritical fluid extraction process

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Food Quality and Safety 2018年第4期2卷 205-211页

作者： Mousumi Ghosh Chitra J. Shubhangi Srivastava Hari Niwas Mishra Agricultural and Food Engineering Department Indian Institute of Technology KharagpurNalanda roadKharagpurWest Mednipore721302India

Objectives:Due to health issues related to cholesterol and the emphasis on manufacture of low cholesterol food products,the research was undertaken for the extraction of cholesterol from cream powder using supercritical fluid extraction(SCFE)*** and Methods:Face centered composite design(FCCD)was used to design the experiments with three independent variables viz.,extraction temperature(40˚C-75˚C),extraction pressure(100-250 bar)and dynamic time(2.5-3.5 h)taking two responses(cholesterol and fat content).The standardized flow rate and static time were 5 L/min(expanded CO_(2) gas)and 30 min,*** surface methodology was used for optimizing the process ***:It was found that higher operating pressure,low extraction temperature and moderate amount of dynamic time facilitated the removal of *** optimized process conditions of 75˚C,204 bar and 3.5 h dynamic time yielded 39%reduction in cholesterol content and 10.6%reduction in total fat content of the cream ***:Thus,a low cholesterol cream powder was developed with health benefits for people suffering from cardiovascular diseases.

关键词： cholesterol supercritical fluid extraction HPLC face-centred composite design response surface methodology

A comparative study of conventional and supercritical fluid extraction methods for the recovery of secondary metabolites from Syzygium campanulatum Korth

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2016年第9期17卷 683-691页

作者： Abdul Hakeem MEMON Mohammad Shahrul Ridzuan HAMIL Madeeha LAGHARI Fahim RITHWAN Salman ZHARI Mohammed Ali Ahmed SAEED Zhari ISMAIL Amin Malik Shah Abdul MAJID Department of Pharmaceutical Chemistry School of Pharmaceutical Sciences Universiti Sains Malaysia 11800 Minden Penang Malaysia Center of Lipids Engineering and Applied Research (CLEAR) lbnu Sina Institute for Scientific & Industrial Research (lbnu Sina ISIR) Universiti Teknologi Malaysia 81310 Johor Bahru Johor Malaysia EMAN Research and Testing Laboratory School of Pharmaceutical Sciences Universiti Sains Malaysia 11800 Minden Penang Malaysia

Syzygium campanulatum Korth is a plant, which is a rich source of secondary metabolites （especially flavanones, chalcone, and triterpenoids）. In our present study, three conventional solvent extraction （CSE） techniques and supercritical fluid extraction （SFE） techniques were performed to achieve a maximum recovery of two flavanones, chalcone, and two triterpenoids from S. campanulatum leaves. Furthermore, a Box-Behnken design was constructed for the SFE technique using pressure, temperature, and particle size as independent variables, and yields of crude extract, individual and total secondary metabolites as the dependent variables. In the CSE procedure, twenty extracts were produced using ten different solvents and three techniques （maceration, soxhletion, and reflux）. An enriched extract of five secondary metabolites was collected using n-hexane：methanol （1：1） soxhletion. Using food-grade ethanol as a modifier, the SFE methods produced a higher recovery （25.5%-84.9%） of selected secondary metabo- lites as compared to the CSE techniques （0.92%-66.00%）.

关键词： Syzygium campanulatum supercritical fluid extraction Conventional solvent extractions Flavanones Chalcone Triterpenoids

Hydrodynamics and Mass Transfer Performance in supercritical fluid extraction Columns

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Chinese Journal of Chemical Engineering 2002年第6期10卷 696-700页

作者：石冰洁张卫东张泽廷于恩平 College of Chemical Engineering Beijing University of Chemical Technology

New models for describing hydrodynamics and mass transfer performance in supercritical fluid extraction columns were proposed. Those models were proved by experimental data, which were obtained in supercritical fluid extraction packed column, spray column and sieve tray column respectively. The inner diameter of those columns areФ25 mm. These experimental systems include supercritical carbon diox-ide-isopropanol-water and supercritical carbon dioxide-ethanol-water, in which supercritical carbon dioxide was dispersed phase, and another was continuous phase. The extraction processes were operated with continuous countercurrent flow. The predicted values are agreed well with experimental data.

关键词： supercritical fluid extraction hydrodynamics mass transfer*

Optimization of conditions for supercritical fluid extraction of flavonoids from hops(Humulus lupulus L.)

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Optimization of conditions for supercritical fluid extractio...

Sustainable oil-in-water analysis using a supercritical fluid carbon dioxide extraction system directly interfaced with infrared spectroscopy

中国食品科学技术学会第五届年会暨第四届东西方食品业高层论坛

作者： TRAOR Lonseny Department of Food Science Qnd Nutrilion University of Conakry PB 1147 Guinea

Waste hops are good sources of *** of flavonoids from waste hops (SC-CO2 extracted hops)using supercritical fluids technology was *** temperatures,pressures and concentrations of ethanol(modifier)and the ratio(w/w)of solvent to material were tested in this *** results of single factor and orthogonal experiments showed that at 50℃,25 MPa,the ratio of solvent to material(50%),ethanol concentration(80%) resulted in maximum extraction yield flavonoids(7.8 mg/g).HPLC-MS analysis of the extracts indicated that flavonoids obtained were xanthohumol,the principal prenylflavonoid in hops.

关键词： Optimization supercritical fluid extraction Flavonoids Xanthohumol Hops(Humulus lupulus L.)

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Journal of Environmental Sciences 2010年第9期22卷 1462-1468页

作者： Edward D.Ramsey School of Chemical Engineering University of Science and Technology Liaoning

A direct aqueous supercritical fluid extraction （SFE） system using carbon dioxide provides a sustainable means by which a vast range of industries may continue to depend on well established infrared （IR） techniques to determine oil-in-water. The SFE-IR method provides an environmentally friendly substitute for current national standard IR reference methods for measuring oil-in-water that rely on using increasingly restricted ozone depleting solvents whose manufacture is being phased out in accordance with international law. The SFE-IR analysis of a 500 mL water sample can be accomplished in 15 min. A rapid on-line SFE-IR calibration method has been implemented. With this calibration method, SFE-IR accuracy for determining diesel oil in 500 mL spiked water samples using single wave number measurement was 86.0%-98.8% with precision （RSD） ranging from 2.5%-7.0%. Using a general purpose calculation which involves measuring infrared absorbance values at three different wave numbers, SFE-IR method accuracy for determining diesel oil in 500 mL spiked water samples was 83.7%-92.2% with RSD 1.0%-9.3%. Data is presented that indicates current long established national standard IR reference methods involving three wave number calculations should be reviewed since, without careful consideration, the inclusion of calculated aromatic hydrocarbon species contributions to final oil-in-water concentration values may provide less accurate results.

关键词： oil-in-water supercritical fluid extraction infrared spectroscopy sustainable green technology

Study on a New Method of extraction of Metal Ions from SolidMatrices by supercritical fluid

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Chinese Chemical Letters 1999年第6期10卷 525-528页

作者： Zhao Jie CUI Jun Cheng LIU Lain Cun GAO Ying Qin WEI Jun Zeng ZHANG(Department of Environmental Engineering, Shandong University. Jinan 250100) Dept. of Environmental Engineering Shandong University Jinan 250100 China

8-Hydroxyquinoline, methanol and Triton-100 were first used together in the extraction of metal ions by supercritical CO2. In the new system, the effects of pressure, temperature and the volume of CO2 on the efficiency of supercritical fluid extraction (SFE) were systematically investigated. The recovery under the optimum condition was only 11.38%, but if suitable concentration of methanol (v/v=5%) was added to the supercritical CO2, the recovery was increased significantly (83.60%, RSD=4.37%, n=5). In order to further enhance the recovery Triton X-100 was added to the samples, and the results were satisfactory (96.62%, RSD=2.85%, n=5).

关键词： supercritical fluid extraction chelating agent modifier surfactant metal ions solid matrices