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

引用

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

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Impact of sesame lignan on physical and oxidative stability of flaxseed oil-in-water emulsion

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oil Crop Science 2019年第4期4卷 254-266页

作者： Xintian Wang Kun Yu Chen Cheng Xiao Yu David Julian McClements Wenwen Huang Jia Yang Fenghong Huang Qianchun Deng Key Laboratory of oilseeds Processing Ministry of AgricultureOil Crops Research InstituteChinese Academy of Agricultural ScienceWuhanChina College of Food and Biological Engineering Henan Collaborative Innovation Center for Food Production and SafetyHenan Key Laboratory of Cold Chain Food Quality and Safety ControlZhengzhou University of Light IndustryZhengzhouChina Department of Food Science University of Massachusetts AmherstAmherstMAUSA

Recent studies have shown that the highly susceptibility to oxidation ofα-linolenic acid(ALA)enriched emulsion delivery system was harmful for human health which limited their incorporation into functional *** of natural sesamol(SOH)and sesamin(SES)on stability of flaxseed oil-in-water emulsion were *** showed that SOH indicated higher antioxidant activity and significantly prolonged the time of emulsion oil-off by retarding oil droplet aggregation in a dose dependent manner throughout ***,SOH showed substantial extended lag phase of lipid oxidation products,especially for secondary oxidation products(thiobarbituric acid-reactive substances,TBARS),with a maximum reduction of 70%with 800 M *** antioxidative efficiency of SOH might relate to its strong ability of scavenging free radical and chelate transition ***,SOH significantly enhanced interfacial barrier property and reduced permeation rate of peroxyl radical across emulsion interface by hydrogen bonds between sugar groups of saponin molecules and ***,no obvious change in barrier property of emulsion was observed in *** improved physicochemical property of flaxseed oil-in-water emulsion with higher antioxidant activity and stronger interfacial barrier property,so that it could be serve as plant-based antioxidant in oil-in-water emulsion delivery system.

关键词： lipid oxidation sesamol sesamin quillaja saponin oil-in-water emulsions

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DEVELOPMENT AND APPLICATION OF water-IN-oil EMULSIONS FOR ZINC HOT ROLLING

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中国有色金属学会会刊：英文版 1995年第1期5卷 107-110页

作者： Jiang Jianchun Mao Daheng(Department of Machine Engineering,Central South University of Technology, Changsha 410083)

ＤＥＶＥＬＯＰＭＥＮＴＡＮＤＡＰＰＬＩＣＡＴＩＯＮＯＦＷＡＴＥＲ－ＩＮ－ＯＩＬ　ＥＭＵＬＳＩＯＮＳＦＯＲＺＩＮＣＨＯＴＲＯＬＬＩＮＧＪｉａｎｇ；ＪｉａｎｃｈｕｎＭａｏ；Ｄａｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｃｈｉ... 详细信息

ＤＥＶＥＬＯＰＭＥＮＴＡＮＤＡＰＰＬＩＣＡＴＩＯＮＯＦＷＡＴＥＲ－ＩＮ－ＯＩＬ　ＥＭＵＬＳＩＯＮＳＦＯＲＺＩＮＣＨＯＴＲＯＬＬＩＮＧＪｉａｎｇ；ＪｉａｎｃｈｕｎＭａｏ；Ｄａｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｃｈｉｎｅＥｎｇｉｎｅｅｒｉｎｇ，Ｃｅｎ...

关键词： emulsion oil-in-water water-in-oil zinc hot rolling lubricant agueous lubricant

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