Results 51 to 60 of about 1,022 (161)

Preparation of an environmentally friendly lead adsorbent. A contribution to the rational design of heavy metal adsorbents [PDF]

open access: yes, 2020
This work described the preparation and characterization of water insoluble chitosan derivatives as lead adsorbents. In highly regioselective reactions, N-substituted crosslinked chitosan derivatives were obtained by crosslinking native chitosan with ...
Errea, María Inés   +2 more
core   +1 more source

Metabolomics Analysis of Aged Garlic Extract for the Identification of Novel Compounds

open access: yesMetabolites
Background/Objectives: Aged garlic extract (AGE), produced by aging raw garlic in an aqueous ethanol solution for over 10 months, exhibits multiple pharmacological activities, including antioxidant and anti-inflammatory effects.
Masato Nakamoto   +3 more
doaj   +1 more source

Discovery of a new bacterium, Microbacterium betulae sp. nov., in birch wood associated with hypersensitivity pneumonitis in woodworkers

open access: yesEnvironmental Microbiology Reports, Volume 16, Issue 4, August 2024.
Through the use of 16S rRNA and whole‐genome sequence analysis, along with phenotyping, chemotaxonomy, and MALDI‐TOF MS profiling, a strain isolated from birch wood has been identified as a new species. This novel species falls within the Microbacterium genus and has been proposed to be named Microbacterium betulae sp. nov.
Mariola Paściak   +11 more
wiley   +1 more source

Beets beyond sugar: Potential and limitations of sugar beet pulp as a feedstock for biorefineries

open access: yesIndustrial Crops and Products
Sugar beet (SB) is a major sugar crop in the European Union and the United States, primarily cultivated for the commercial production of table sugar. Post-extraction of sucrose, the fibrous fraction which remains is called sugar beet pulp (SBP).
Kawinharsun Dhodduraj   +8 more
doaj   +1 more source

Catalysts for Biomass Upgrading: Transforming 5‐Hydroxymethyl Furfural into 2,5‐Furan Dicarboxylic Acid for Fine Chemicals, Featuring Mil‐100(Fe) Mof as a Novel Catalyst

open access: yesChemistrySelect, Volume 9, Issue 28, July 26, 2024.
This review emphasizes the potential of metal‐organic frameworks (MOFs), notably MIL‐100(Fe), as catalysts for converting 5‐Hydroxymethyl Furfural into 2,5‐Furan Dicarboxylic Acid, vital in bioplastics and chemicals. MOFs offer recyclability and stability.
Thapelo Manyepedza, Nyasha Makuve
wiley   +1 more source

A Study of the Active Esters of the Steroisomeric Mucic Acids in Relation to the Law of Optical Superposition [PDF]

open access: yes, 1940
(1) Allomucic acid has been prepared from mucic acid and characterised. It has been found by Professor Posternak to be identical with his synthetic allomucic acid.
Lapsley, Robert William
core  

Synthesis of N‐Substituted Pyrrole‐2,5‐dicarboxylic Acids from Pyrroles

open access: yesHelvetica Chimica Acta, Volume 107, Issue 6, June 2024.
• Straight forward synthesis route to N‐alkylated PDCAs • Up to 42 % yield • 12 examples • R=alkyl (saturated, unsaturated), benzyl Abstract Pyrrole‐2,5‐dicarboxylic acid (PDCA) is a heterocyclic aromatic dicarboxylic acid that may emerge as a new monomer for polyester production.
Jan‐Simon Jeshua Friedrichs   +3 more
wiley   +1 more source

Processo fermentativo "one-pot" para a produção de ácido múcico a partir de polpa cítrica [PDF]

open access: yes, 2021
Orientador: David Alexander MitchellCoorientadora: Maura Harumi Sugai GuériosDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Ciências Biológicas - Bioquímica.
Figueiredo, Gabriela Conor
core  

Screening and Characterization of Potential Acetylcholinesterase Inhibitors From Phyllanthus emblica L. Fruits Using Affinity Ultrafiltration Combined With Ultra‐High‐Performance Liquid Chromatography–Mass Spectrometry

open access: yesJournal of Food Biochemistry, Volume 2024, Issue 1, 2024.
In this study, targeting acetylcholinesterase (AChE) related to Alzheimer’s disease, a screening method, affinity ultrafiltration combined with ultra‐high‐performance liquid chromatography–quadrupole‐time‐of‐flight mass spectrometry (AUF–UHPLC–Q‐TOF MS) was developed for the discovery and identification of AChE inhibitors from Phyllanthus emblica L ...
Yangzom Dawa   +2 more
wiley   +1 more source

FAUSTINO JOVITA MALAGUTI Sugar, substitution theory, and amides

open access: yesRevista CENIC Ciencias Químicas, 2019
Faustino Jovita Malaguti (1802-1878), an Italian-French pharmacist, proved that diluted, even very diluted acids, at temperatures below 95 0C, acted in an identical manner upon sugar and that the final result was a mixture of ulmic and formic acid or ...
Jaime Wisniak
doaj  

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