Results 31 to 40 of about 3,135,514 (288)

Chiral separation by enantioselective liquid–liquid extraction [PDF]

open access: yes, 2011
The literature on enantioselective liquid–liquid extraction (ELLE) spans more than half a century of research. Nonetheless, a comprehensive overview has not appeared during the past few decades.
Feringa, Ben L.,   +5 more
core   +2 more sources

Potential of choline chloride - based natural deep eutectic solvents (NaDES) in the extraction of microalgal metabolites [PDF]

open access: yes, 2017
In a typical chemical process, the solvents are widely used for the dissolution of the reagents, to favor the kinetics and the thermodynamics of a chemical reaction, for the extraction of products, for the separation of mixtures.
Bravi, Marco   +2 more
core   +1 more source

Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]

open access: yes, 2012
In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Camy, Séverine   +2 more
core   +3 more sources

Extraction of anthocyanins and total phenolic compounds from açai (euterpe oleracea mart.) using an experimental design methodology. part 1: Pressurized liquid extraction [PDF]

open access: yes, 2020
Currently, açai is one of the most important fruits present in the world. Several studies have demonstrated its high content in phenolic compounds and anthocyanins.
Aliaño González, María José   +7 more
core   +1 more source

Physiochemical Characteristics of Hot and Cold Brew Coffee Chemistry: The Effects of Roast Level and Brewing Temperature on Compound Extraction

open access: yesFoods, 2020
The role of roasting in cold brew coffee chemistry is poorly understood. The brewing temperature influences extraction processes and may have varying effects across the roast spectrum.
Niny Z. Rao, M. Fuller, Meghan Grim
semanticscholar   +1 more source

Solvent extraction: the coordination chemistry behind extractive metallurgy

open access: yesChem. Soc. Rev., 2014
AbstractReview: 49 refs.
Wilson, A Matthew   +5 more
openaire   +6 more sources

Higher Yield and Polyphenol Content in Olive Pomace Extracts Using 2-Methyloxolane as Bio-Based Solvent

open access: yesFoods, 2022
Despite its severe toxicity and negative environmental impact, hexane remain the solvent of choice for the extraction of vegetable oils. This is in contrast with the constantly growing demand for sustainable and green extraction processes.
Christian Cravotto   +9 more
doaj   +1 more source

Challenges for chemical information extraction and text retrieval [PDF]

open access: yes, 1997
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Bakel, Bas van, Postma, Geert
core   +2 more sources

Nanostructured Na2CaP2O7: A New and Efficient Catalyst for One-Pot Synthesis of 2-Amino-3-Cyanopyridine Derivatives and Evaluation of Their Antibacterial Activity

open access: yesApplied Sciences, 2022
A facile and novel synthesis of thirteen 2-amino-3-cyanopyridine derivatives 5(a–m) by a one-pot multicomponent reactions (MCRs) is described for the first time, starting from aromatic aldehydes, malononitrile, methyl ketones, or cyclohexanone and ...
Redouane Achagar   +9 more
doaj   +1 more source

Screening the effect of four ultrasound-assisted extraction parameters on hesperidin and phenolic acid content of aqueous citrus pomace extracts [PDF]

open access: yes, 2018
Polyphenols of citrus by-products, due to their antioxidant and antimicrobial activities, could be valorized by pharmaceutical and food industries, adding a value to the citrus processing companies.
Bowyer, Michael C.   +6 more
core   +1 more source

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