Topic
Extraction (chemistry)
About: Extraction (chemistry) is a research topic. Over the lifetime, 71365 publications have been published within this topic receiving 1132790 citations.
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01 Jan 1965
2,741 citations
TL;DR: An improved method for extracting the lipids from tissues consists of the use of hexane:isopropanol, followed by a wash of the extract with aqueous sodium sulfate to remove nonlipid contaminants.
2,400 citations
TL;DR: In this article, the extraction of water soluble extracellular polymeric substances (EPS) from activated sludge was investigated, which consisted mainly of protein but also humic compounds, carbohydrates, uronic acids and DNA.
2,203 citations
TL;DR: A method is described which is specific for the extraction of lipopolysaccharides from R form bacteria, which consists of aqueous phenol, chloroform and petroleum ether.
Abstract: A method is described which is specific for the extraction of lipopolysaccharides from R form bacteria. The extraction mixture which is monophasic, consists of aqueous phenol, chloroform and petroleum ether. R form lipopolysaccharides (glycolipids). due to their lipophilic nature, are completely soluble in the mixture. S and T form lipopolysaccharides as well as proteins, nucleic acids, and polysaccharides, are insoluble, and they are excluded from the extracts. The method is mild, as it can be carried out at below 10°. The yields are generally higher than those obtained by phenol-water extraction, and the products are usually water-soluble. Lipopolysaccharides have been successfully extracted from all R form bacteria so far attempted.
1,858 citations
TL;DR: In this article, a critical review was conducted to introduce and compare the conventional Soxhlet extraction and the new alternative methods used for the extraction of nutraceuticals from plants, and the practical issues of each extraction method were discussed.
Abstract: Various novel techniques including ultrasound-assisted extraction, microwave-assisted extraction, supercritical fluid extraction, and accelerated solvent extraction have been developed for the extraction of nutraceuticals from plants in order to shorten the extraction time, decrease the solvent consumption, increase the extraction yield, and enhance the quality of extracts. A critical review was conducted to introduce and compare the conventional Soxhlet extraction and the new alternative methods used for the extraction of nutraceuticals from plants. The practical issues of each extraction method were discussed. Potential uses of those methods for the extraction of nutraceuticals from plant materials was finally summarized.
1,770 citations