Results 61 to 70 of about 165,992 (261)

Headspace analysis of natural yoghurt using headspace solid phase microextraction : a thesis presented in partial fulfilment of the requirements for the degree of Master of Philosophy in Food Technology at Massey University (Turitea Campus), Palmerston North, New Zealand [PDF]

, 2001
The Solid Phase Microextraction (SPME) method was originally developed to extract volatile and semivolatile compounds from wastewater samples but has since been applied to flavour compounds in foods and beverages.
Sivalingam-Reid, Geedha
core  

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Exploring jujube wine flavor and fermentation mechanisms by HS-SPME-GC–MS and UHPLC-MS metabolomics

Food chemistry: X
Highlights • GC–MS and LC-MS revealed the quality changes of jujube wine during fermentation.• A total of 107 volatile substances and 1758 non-volatile substances were identified.• The type of jujube wine aroma changes from grassy and mushroomy to floral
Xinxin Zhao, Zhouping Wang, F. Tang, W. Cai, Bo Peng, Chunhui Shan   +5 more
semanticscholar   +1 more source

Volatile Components of Haplophyllum canaliculatum Boiss. by Different Extraction Procedures

Journal of Analytical Methods in Chemistry, 2020
Volatile components of Haplophyllum canaliculatum Boiss. grown in Iran were extracted by hydrodistillation (HD), solvent-free microwave extraction (SFME), and headspace solid-phase microextraction (HS-SPME).
Nastaran Ahadi, Marzieh Torabbeigi, Zahra Aghaiee Meibodei, Fatemeh Safatian   +3 more
doaj   +1 more source

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

Rare Metals, EarlyView.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang, Lin Qiu, Jian Yu, Wen Ma, Xiaoyu Song, Mingjian Zhang, Yujiao Xie, Aochi Liu, Li Sun, Xiangyu Meng, Jie Lin, Xiaotian Wang   +11 more
wiley   +1 more source

Enhancing the targeted and untargeted analysis of honey by vacuum-assisted SPME-GC × GC-MS. A green, practical, and highly informative approach

Green Analytical Chemistry
The use of vacuum-assisted headspace (Vac-HS) coupled with solid-phase microextraction (SPME) is a technique that has been recently proven to be highly beneficial for enhancing the extraction of semi-volatile in shorter time and milder temperatures. This
Damien Eggermont, Francesca Pardi, Giorgia Purcaro   +2 more
doaj   +1 more source

Characterization of volatile compounds of Daucus crinitus Desf. Headspace Solid Phase Microextraction as alternative technique to Hydrodistillation

Chemistry Central Journal, 2010
Background Traditionally, the essential oil of aromatic herbs is obtained using hydrodistillation (HD). Because the emitted volatile fraction plays a fundamental role in a plant's life, various novel techniques have been developed for its extraction from
Tabti Boufeldja, Allali Houcine, Desjobert Jean-Marie, Djabou Nassim, El Amine Dib Mohammed, Muselli Alain, Costa Jean   +6 more
doaj   +1 more source

Characterization of craft beer through flavour component analysis by GC-MS and multivariate statistical tools [PDF]

, 2018
Beer is a rather popular drink and represents the most widely consumed alcoholic beverage in the world.The present research aims at characterizing the flavour profile of lager pilsner, the category of low fermentation beers most common in Europe.
Boccacci Mariani Maurizio, Giannetti Vanessa, TORRELLI, PAOLA   +2 more
core  

HS-SPME Determination of Volatile Carbonyl and Carboxylic Compounds in Different Matrices [PDF]

Journal of Chromatographic Science, 2006
Specific chromatographic methodologies are developed for the analysis of carboxylic acids (C(2)-C(6), benzoic) and aldehydes (C(2)-C(10)) of low molecular weight in diverse matrices, such as air, automotive exhaust gases, human breath, and aqueous matrices.
Elena E, Stashenko, Amanda L, Mora, Martha E, Cervantes, Jairo R, Martínez   +3 more
openaire   +2 more sources

The scent of death: A case study for volatile markers of decomposition on a concrete floor

Journal of Forensic Sciences, EarlyView.
Abstract Volatile organic compounds (VOCs) released during human decomposition are chemically diverse and can provide forensic evidence indicating the prior presence of a corpse. In July 2023, the Michigan City Police Department received a report from an individual claiming to have murdered his roommate and stored the body in a basement cellar for 57 ...
Alexis Hecker, Anna Painter, John Goodpaster   +2 more
wiley   +1 more source