Advertisement
Advertise here Publish your press releases here Sponsor BioPortfolio
Follow us on Twitter Sign up for daily news and research emails Contributors wanted

Natural deep eutectic solvents as new potential media for green technology.

09:03 EDT 24th April 2014 | BioPortfolio

Summary of "Natural deep eutectic solvents as new potential media for green technology."

Developing new green solvents is one of the key subjects in Green Chemistry. Ionic liquids (ILs) and deep eutectic solvents, thus, have been paid great attention to replace current harsh organic solvents and have been applied to many chemical processing such as extraction and synthesis. However, current ionic liquids and deep eutectic solvents have still limitations to be applied to a real chemical industry due to toxicity against human and environment and high cost of ILs and solid state of most deep eutectic solvents at room temperature. Recently we discovered that many plant abundant primary metabolites changed their state from solid to liquid when they were mixed in proper ratio. This finding made us hypothesize that natural deep eutectic solvents (NADES) play a role as alternative media to water in living organisms and tested a wide range of natural products, which resulted in discovery of over 100 NADES from nature. In order to prove deep eutectic feature the interaction between the molecules was investigated by nuclear magnetic resonance spectroscopy. All the tested NADES show clear hydrogen bonding between components. As next step physical properties of NADES such as water activity, density, viscosity, polarity and thermal properties were measured as well as the effect of water on the physical properties. In the last stage the novel NADES were applied to the solubilization of wide range of biomolecules such as non-water soluble bioactive natural products, gluten, starch, and DNA. In most cases the solubility of the biomolecules evaluated in this study was greatly higher than water. Based on the results the novel NADES may be expected as potential green solvents at room temperature in diverse fields of chemistry.

Affiliation

Natural Products Laboratory, Institute of Biology, Leiden University, 2300 RA Leiden, The Netherlands.

Journal Details

This article was published in the following journal.

Name: Analytica chimica acta
ISSN: 1873-4324
Pages: 61-8

Links

PubMed Articles [12011 Associated PubMed Articles listed on BioPortfolio]

Prebiotic Phosphate Ester Syntheses in a Deep Eutectic Solvent.

We report a route to synthesize a wide range of organophosphates of biological significance in a deep eutectic solvent (2:1 urea and choline chloride), utilizing various orthophosphate sources. Heatin...

Deep Eutectic Solvents in Polymerizations: A Greener Alternative to Conventional Syntheses.

The use of deep eutectic solvents (DESs) that act as all-in-one solvent-template-reactant systems offers an interesting green alternative to conventional syntheses in materials science. This Review ai...

Aqueous Ionic Liquids and Deep Eutectic Solvents for Cellulosic Biomass Pretreatment and Saccharification.

Ionic liquids (ILs) have proven effective solvents for pretreating lignocellulose, leading to the fast saccharification of cellulose and hemicellulose. However, the high current cost of most ILs remai...

Natural oils are better than organic solvents for the conversion of soybean sterols to 17-ketosteroids by Mycobacterium fortuitum.

Conversion of soybean sterols to 17-ketosteroids by thawed cells of Mycobacterium fortuitum is strongly inhibited by organic solvents. Use of natural oils instead of the solvents leads to enhanced act...

Preparation of chlorocholine chloride/urea deep eutectic solvent-modified silica and an examination of the ion exchange properties of modified silica as a Lewis adduct.

Chlorocholine chloride/urea (ClChCl-urea), a deep eutectic solvent (DES), was applied successfully to the modification of silica. The resulting modified silica was characterized by Fourier transform i...

Clinical Trials [1858 Associated Clinical Trials listed on BioPortfolio]

Eutectic Mixture for Hemorrhoidectomy Postoperative

Assess the efficacy and safety of the topic use of an eutectic mixture of local anesthetics for postoperative pain control of patients submitted to hemorrhoidectomy. Patients will be opera...

Green Tea Anticancer Mechanisms in Smokers

The purpose of this study is to determine whether green tea may lower the risk of certain cancers.

A Pilot Trial to Assess the Effects of Green Tea in the Prevention of Therapy-Induced Mucositis

This is a clinical research study that is designed to determine if there is a potential benefit of green tea to help treat and prevent therapy induced mucositis, which is mouth sores cause...

Cardioprotective Effects of Green Tea Versus Maté Intake

The investigators aim to study the effects of green tea and maté consumption on lipid and inflammatory profiles in dyslipidemic and overweight subjects.

Green Tea Consumption and Coronary Heart Disease

To examine the prospective association of green tea consumption to the incidence and mortality of coronary heart disease (CHD) using multivariate analysis while controlling for the potenti...

Medical and Biotech [MESH] Definitions

Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.

A space which has limited openings for entry and exit combined with unfavorable natural ventilation such as caves, refrigerators, deep tunnels, pipelines, sewers, silos, tanks, vats, mines, deep trenches or pits, vaults, manholes, chimneys, etc.

Algae of the division Chlorophyta, in which the green pigment of CHLOROPHYLL is not masked by other pigments. Green algae have over 7000 species and live in a variety of primarily aquatic habitats. Only about ten percent are marine species, most live in freshwater. They are more closely related to the green vascular land PLANTS than any other group of algae.

Culture media containing biologically active components obtained from previously cultured cells or tissues that have released into the media substances affecting certain cell functions (e.g., growth, lysis).

The means of interchanging or transmitting and receiving information. Historically the media were written: books, journals, newspapers, and other publications; in the modern age the media include, in addition, radio, television, computers, and information networks.

Search BioPortfolio: