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Natural deep eutectic solvents and aqueous solutions as an alternative extraction media for propolis
(2019-11-01)
Ethanolic extracts of propolis are consumed for their health benefits even though direct consumption of alcoholic extracts is not always ideal. Natural Deep Eutectic Solvents (NADES) can potentially extract similar compounds ...
Natural deep eutectic solvents as the major mobile phase components in high-performance liquid chromatography—searching for alternatives to organic solvents
(2018-06-01)
Over the past six decades, acetonitrile (ACN) has been the most employed organic modifier in reversed-phase high-performance liquid chromatography (RP-HPLC), followed by methanol (MeOH). However, from the growing environmental ...
On Track for a Truly Green Propolis-Fingerprinting Propolis Samples from Seven Countries by Means of a Fully Green Approach
(2016-12-05)
The production of quality bee products, as well as bee survival itself, depends on the health conditions of the environment, but ironically, harmful solvents are often employed by scientists and traders to monitor the ...
Ionic Liquids as “Green Solvents”: Are they Safe?
(2020-01-01)
Ionic liquids or molten salts are organic salts in a liquid state under normalized conditions, composed by organic cations and inorganic or organic anions. Although they represent a wide diversity of industrial applications, ...
A trade off between separation, detection and sustainability in liquid chromatographic fingerprinting
(Elsevier B.V., 2014-08-08)
It is now recognized that analytical chemistry must also be a target for green principles, in particular chromatographic methods which typically use relatively large volumes of hazardous organic solvents. More generally, ...
Green solvents for the hydroaminomethylation of estragole
(Universidade Federal de Minas GeraisUFMG, 2019-02-25)
Hydroaminomethylation (HAM) is a simple route to synthesize amines through a highly atom-economic reaction of alkene with syngas (carbon monoxide/hydrogen mixture) and a primary or secondary amine. HAM consists of three ...