Results 121 to 130 of about 41,505 (286)

Characterising a New Cannabis Trend: Extensive Analysis of Semi‐Synthetic Cannabinoid‐Containing Seizures From Germany

open access: yesDrug Testing and Analysis, EarlyView.
A LC–MS/MS method has been validated for analysis of semi‐synthetic cannabinoids (SSC) and selected phytocannabinoids in seizures. Further SSC‐derivatives were implemented into the method for qualitative detection. The methodology was applied to a sample collective (n = 80) including cannabis flowers, resins, edibles and vape liquids.
Marica Hundertmark   +4 more
wiley   +1 more source

Toward a Cannabis Terroir: Untargeted Metabolomic Profiling of Authentic Samples Using Gas Chromatography–High‐Resolution Mass Spectrometry (GC‐HRMS) and Liquid Chromatography–High‐Resolution Tandem Mass Spectrometry (LC‐HRMS/MS)

open access: yesDrug Testing and Analysis, EarlyView.
This study developed a comprehensive metabolomics workflow using GC‐HRMS and LC‐HRMS/MS and analyzed 35 CBD‐type cannabis flowers grown under varying conditions. Key discriminative compounds enabled classification by chemical phenotype and cultivation environment. The results showed that environmental factors influence chemical profiles, supporting the
Sandra N. Poetzsch   +3 more
wiley   +1 more source

Biocatalytic stereocontrolled head-to-tail cyclizations of unbiased terpenes as a tool in chemoenzymatic synthesis

open access: yesNature Communications
Terpene synthesis stands at the forefront of modern synthetic chemistry and represents the state-of-the-art in the chemist’s toolbox. Notwithstanding, these endeavors are inherently tied to the current availability of natural cyclic building blocks ...
Andreas Schneider   +4 more
doaj   +1 more source

Polyoxotungstate‐Stabilized Gold Nanoparticles: How to Transfer from an Aqueous Suspension to CH3CN

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Available methods inspired by the literature for preparing stable suspensions of gold nanoparticles stabilized by polyoxometalates (POMs@AuNPs) in CH3CN, a solvent commonly used in oxidation reactions, are compared. The evaluation criteria used are the ease of obtaining and the stability of the POM@AuNPs suspensions, as well as the reproducibility of ...
Jean‐Baptiste Harlé   +8 more
wiley   +1 more source

Acyclic Diene Metathesis Polymerization Approach for Synthesis of Biobased Polyesters: Summary of Recent Reports

open access: yesEuropean Journal of Lipid Science and Technology, EarlyView.
The synthesis of biobased polyesters, including soluble polymer networks, displaying better tensile properties beyond polyolefins by adopting ADMET polymerization, and the post‐modification for preparation of the multiblock copolymers and the composite have been reviewed.
Mohamed Mehawed Abdellatif   +1 more
wiley   +1 more source

The Fusion of Elemental Sulfur With Waste Cooking Oil‐Based Derivatives: Beyond Renewability

open access: yesEuropean Journal of Lipid Science and Technology, EarlyView.
The fuse of two waste streams, elemental sulfur and waste cooking oil, is enabled by Inverse Vulcanization. The process might ensure the closed‐loop production of polymeric materials for a wide range of applications, beyond its sole potential renewability.
Sandric Afonso, Hatice Mutlu
wiley   +1 more source

Identifying the True Catalyst: A Mn(II) Salt versus Mn(II) Complexes in Epoxidation with m‐Chloroperbenzoic Acid

open access: yesEuropean Journal of Organic Chemistry, Accepted Article.
The oxidant meta‐chloroperbenzoic acid (m‐CPBA) is used widely for the epoxidation of alkenes, yet its efficiency is often limited under ambient conditions. In this study we investigate the catalytic activity of a Mn(II) salt and mononuclear Mn(II) complexes, two of which are reported here for the first time, in the epoxidation of alkenes with m‐CPBA ...
Milica Savić   +7 more
wiley   +1 more source

Mechanisms of Flavor Substance Formation in Pengqi Sauce Based On an Integrated Analysis of Absolute Microbial Quantification and Volatomics

open access: yesFood Frontiers, EarlyView.
Elucidating flavor compound formation mechanisms in Pengqi sauce through a combinatorial approach integrating absolute microbial community quantification and volatomics profiling. ABSTRACT Pengqi sauce is a traditional Chinese naturally fermented aquatic product, and its unique flavor formation mechanism is closely related to microbial function.
Xiaojie Hou   +7 more
wiley   +1 more source

Use of Liquid Nitrogen in Food Products: A Review

open access: yesFood Frontiers, EarlyView.
ABSTRACT The increasing demand for frozen products has led companies to offer a variety of foods that may struggle to maintain quality. Traditional freezing methods often negatively impact food quality, affecting texture, color, flavor, and so forth.
Fabiola Pesce   +3 more
wiley   +1 more source

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