This study describes the identification of six allyl esters in a garlic cheese preparation and in a commercial cream cheese. The extracts were prepared by liquid/liquid extraction and concentrated by the SAFE process. The identification of the allyl esters of acetic, butyric, hexanoic, heptanoic, octanoic, and decanoic acids is based on the correlation of their mass spectrometric data and chromatographic retention time data obtained from the extracts with those of authentic standards. In addition to the gas chromatography (GC)/mass spectrometry analysis, the flavor ingredients were characterized by GC sniffing by a trained flavorist. Some of the esters were isolated by preparative GC.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/jf0713096 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Machine Learning for Reaction Performance Prediction in Allylic Substitution Enhanced by Automatic Extraction of a Substrate-Aware Descriptor.
J Chem Inf Model
January 2025
Department of Computer Science and Engineering, and Key Laboratory of Shanghai Education Commission for Intelligent Interaction and Cognitive Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
Despite remarkable advancements in the organic synthesis field facilitated by the use of machine learning (ML) techniques, the prediction of reaction outcomes, including yield estimation, catalyst optimization, and mechanism identification, continues to pose a significant challenge. This challenge arises primarily from the lack of appropriate descriptors capable of retaining crucial molecular information for accurate prediction while also ensuring computational efficiency. This study presents a successful application of ML for predicting the performance of Ir-catalyzed allylic substitution reactions.
View Article and Find Full Text PDFForensic Aspects of Designer LSD Analogs Identification by GC-MS (EI) and UV Spectroscopy.
Molecules
December 2024
Department of Forensic Medicine, Wroclaw Medical University, 4 J. Mikulicza-Radeckiego Street, 50-345 Wroclaw, Poland.
Article Synopsis
- LSD analogs are emerging psychoactive substances designed to mimic illegal drugs while bypassing regulations, presenting identification challenges due to their diverse isomeric forms.
- Gas chromatography-mass spectrometry (GC-MS) and UV spectroscopy were utilized to analyze 13 different LSD analogs, revealing that specific solvents enhanced detection sensitivity, while methanol could produce misleading results.
- The study successfully established a method for distinguishing between LSD analogs and their isomers through unique ion fragmentation patterns and intensities, aiding in accurate forensic analysis.
Chemical probes for the identification of the molecular targets of honokiol.
Eur J Med Chem
February 2025
Departamento de Química Orgánica, Facultad de Ciencias Químicas, Plaza de las Ciencias s/n, Universidad Complutense de Madrid, E-28040, Madrid, Spain. Electronic address:
Honokiol is a natural product with an interesting array of biological effects, including significant anti-tumor properties. However, full exploration of its therapeutic potential is hampered by its modest pharmacokinetic profile and by the lack of synthetic methods that allow to obtain specifically designed derivatives with improved properties. In addition, the specific molecular targets of honokiol remain poorly understood, a fact that limits the search of alternative hits for subsequent optimization programs.
View Article and Find Full Text PDFStereospecific syn-dichlorination of allylic amines enabled by identification of a superior stereo-directing group.
Commun Chem
November 2024
Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea.
Alteration of a well-established reaction mechanism for access to different molecular structures is an inherently intriguing research subject. In that context, syn-stereospecific alkene dihalogenation draws attention as a long-standing problem in synthetic organic chemistry. The simplest approach would be the incorporation of an additional stereo-inverting step within the traditional anti-dihalogenation process.
View Article and Find Full Text PDFComparative content analysis and biological activity studies of fatty and essential oils from some garlic products sold in Turkish community pharmacies, natural, and fermented garlic.
Food Sci Nutr
September 2024
Department of Pharmaceutical Botany, Faculty of Pharmacy Atatürk University Erzurum Turkey.
Garlic (Alliaceae), an annual herb, is renowned not only for its distinctive flavor but also for its extensive therapeutic applications in managing various ailments and health conditions. In this study, garlic products identified as the best-selling items in Turkish pharmacies for various purposes were compared with garlic grown under standard conditions in terms of chemical composition and antidiabetic, anticholinesterase, antimicrobial, and antioxidant properties. Three of garlic samples were prepared by researchers.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!