Articles with "natural deep" as a keyword



Glycolic Acid‐Based Natural Deep Eutectic Solvents (NADESs) as Catalytic Reaction Media for the Synthesis of β‐Nitro Ketones

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Published in 2025 at "Asian Journal of Organic Chemistry"

DOI: 10.1002/ajoc.70234

Abstract: β‐nitro ketones represent highly significant compounds for their simultaneous nucleophilic and electrophilic reactive sites in 1,3‐related positions. These molecules are commonly obtained via nitration of enones in aprotic apolar organic solvents (such as THF and… read more here.

Keywords: reaction; nitro ketones; glycolic acid; deep eutectic ... See more keywords

The Role of Reactive Natural Deep Eutectic Solvents in Sustainable Biocatalysis

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Published in 2024 at "ChemCatChem"

DOI: 10.1002/cctc.202301597

Abstract: Deep eutectic solvents (DESs) advanced in the past decade as the new generation of green and sustainable extraction and reaction media in biorefineries and in a multitude of chemical and biotechnological processes. Particularly, enzyme catalyzed… read more here.

Keywords: deep eutectic; role reactive; eutectic solvents; solvents sustainable ... See more keywords

Top-Down Extraction Silk Protein Nanofibers by Natural Deep Eutectic Solvents and Application in Dispersion of Multiwall Carbon Nanotubes for Wearable Sensing.

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Published in 2019 at "ChemSusChem"

DOI: 10.1002/cssc.201902979

Abstract: With typical nanofibrous structure, silks spun by silkworms and spiders are the representative fibrous proteins that embody excellent mechanical properties and biological functions. However, it is still a challenge to directly extract silk nanofibers (SNFs)… read more here.

Keywords: natural deep; nanofibers natural; silk; multiwall carbon ... See more keywords

A Mild, Efficient and Sustainable Tetrahydropyranylation of Alcohols Promoted by Acidic Natural Deep Eutectic Solvents.

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Published in 2022 at "ChemSusChem"

DOI: 10.1002/cssc.202202066

Abstract: A straightforward protocol to promote the tetrahydropyranylation of alcohols, using for the first time bioinspired acidic Natural Deep Eutectic Solvents (NADESs) as non-innocent reaction media under mild reaction conditions, is reported. This approach enables the… read more here.

Keywords: deep eutectic; acidic natural; tetrahydropyranylation alcohols; tetrahydropyranylation ... See more keywords

Microwave-ultrasonic technique development coupled with natural deep eutectic solvents in anthocyanin extraction from perilla (Perilla frutescens var. Acuta) leaves.

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Published in 2022 at "Journal of the science of food and agriculture"

DOI: 10.1002/jsfa.12343

Abstract: BACKGROUND As potent antioxidants, anthocyanins could protect the body from free radicals. However, the traditional solvent extraction method has the disadvantages of high extraction temperature and long extraction time, so it is necessary to develop… read more here.

Keywords: eutectic solvents; deep eutectic; extraction; microwave ultrasonic ... See more keywords

Extraction and identification of steroidal saponins from Polygonatum cyrtonema Hua using natural deep eutectic solvent-synergistic quartz sand assisted extraction method.

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Published in 2023 at "Journal of separation science"

DOI: 10.1002/jssc.202200823

Abstract: In this study, quartz sand with particularly sharp nanoscale edges acted like a nanoscale knife physically cut cells of Polygonatum cyrtonema Hua to nanosized particles, and was synergized with natural deep eutectic solvent to extract… read more here.

Keywords: deep eutectic; steroidal saponins; extraction; quartz sand ... See more keywords

Quantification of Phthalate Esters in Carbonated Soft Drinks by Hollow Fiber-Microporous Membrane Liquid-Liquid Extraction and 96-Well Plate System Using Natural Deep Eutectic Solvents Based on Fatty Acids.

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Published in 2024 at "Journal of separation science"

DOI: 10.1002/jssc.70060

Abstract: This study introduces a green approach to sample preparation by applying natural deep eutectic solvents (NADES) to determine phthalates in carbonated soft drinks using high-performance liquid chromatography with diode array detector (HPLC-DAD). The method employs… read more here.

Keywords: carbonated soft; liquid; methodology; phthalate ... See more keywords

Effects of natural deep eutectic solvents on lactic acid bacteria viability during cryopreservation

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Published in 2018 at "Applied Microbiology and Biotechnology"

DOI: 10.1007/s00253-018-8996-3

Abstract: In this study, a new method of cryopreservation of lactic acid bacteria (LAB) using natural deep eutectic solvents (NADESs) was developed. Survival rates of LAB during 24-h short-term and 180-day long-term cryostorage at − 20 °C were… read more here.

Keywords: natural deep; deep eutectic; eutectic solvents; acid bacteria ... See more keywords

Exploring the utility of natural deep eutectic solvents as additives in super/subcritical fluid chromatography- insights into chiral recognition mechanism.

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Published in 2022 at "Analytica chimica acta"

DOI: 10.1016/j.aca.2022.339584

Abstract: A push towards sustainability has led to the widespread adoption of not only green synthetic methodologies but also green analytical techniques. Supercritical fluid chromatography (SFC) is considered a greener technique compared to HPLC. In this… read more here.

Keywords: utility natural; eutectic solvents; fluid chromatography; chiral recognition ... See more keywords
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Green solvents from ionic liquids and deep eutectic solvents to natural deep eutectic solvents

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Published in 2018 at "Comptes Rendus Chimie"

DOI: 10.1016/j.crci.2018.04.002

Abstract: Abstract Natural deep eutectic solvents (NADESs) are defined as mixtures of certain molar ratios of natural compounds such as sugars, organic acids, amino acids, and organic bases that are abundant in organisms. The melting points… read more here.

Keywords: solvents ionic; green solvents; natural deep; deep eutectic ... See more keywords
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Natural deep eutectic systems as alternative nontoxic cryoprotective agents.

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Published in 2018 at "Cryobiology"

DOI: 10.1016/j.cryobiol.2018.06.010

Abstract: Natural deep eutectic systems (NADES) are mostly composed of natural primary metabolites such as sugars, sugar alcohols, organic acids, amino acids and amines. These simple molecules have been identified in animals living in environments with… read more here.

Keywords: systems alternative; natural deep; deep eutectic; eutectic systems ... See more keywords