Results 61 to 70 of about 32,049 (222)

Sub- and supercritical fluid extraction of functional ingredients from different natural sources: Plants, food-by-products, algae and microalgae A review [PDF]

, 2006
The increasing interest of consumers in functional foods has brought about a rise in demand for functional ingredients obtained using ‘‘natural’’ processes.
Cifuentes, Alejandro, Herrero, Miguel, Ibáñez, Elena   +2 more
core   +1 more source

Simultaneous Quantification of Phenolic Compounds and Capsaicinoids in Chili Peppers Using Ultra‐High Performance Liquid Chromatography‐Tandem Mass Spectrometry

Food Safety and Health, EarlyView.
A UHPLC‐MS/MS method was developed to simultaneously quantify four capsaicinoids and 19 phenolic compounds, the key bioactive constituents in chili peppers. It exhibits high sensitivity, low matrix effects, excellent accuracy, and precision, enabling reliable detection in chili samples.
Shaoyun Wu, Xue Feng, Haixiao Ma, Yinfeng Zhao, Zhenying Sun, Meiling Zhang, Zehua Ke, Jing Qiu, Yongzhong Qian, Guiqiao Liu, Rui Weng   +10 more
wiley   +1 more source

RECENT ADVANCES IN GAS, LIQUID AND SUPERCRITICAL FLUID CHROMATOGRAPHY IN THE CONTEXT OF SUSTAINABLE/ GREEN CHEMISTRY

International Journal of Pharmacy & Integrated Health Sciences
Background: Chromatographic techniques such as gas chromatography (GC), liquid chromatography (LC) and supercritical fluid chromatography (SFC) have long been employed in analytical chemistry. However, using or producing certain organic solvents and non-
Nimra Sohail, Bushra Naureen, Mehmood Asghar, Aziza Sarwar, Aisha Altaf   +4 more
doaj   +1 more source

Enantioselective Analytical- and Preparative-Scale Separation of Hexabromocyclododecane Stereoisomers Using Packed Column Supercritical Fluid Chromatography

Molecules, 2016
Hexabromocyclododecane (HBCDD) is an additive brominated flame retardant which has been listed in Annex A of the Stockholm Convention for elimination of production and use.
Nicole Riddell, Lauren Gayle Mullin, Bert van Bavel, Ingrid Ericson Jogsten, Alan McAlees, Allison Brazeau, Scott Synnott, Alan Lough, Robert McCrindle, Brock Chittim   +9 more
doaj   +1 more source

The need to merge supercritical fluid chromatography into undergraduate curricula for the twenty-first century

Green Chemistry Letters and Reviews, 2021
Complementarity to liquid and gas chromatography, supercritical fluid chromatography (SFC) is becoming a mainstream separation technique. There is a global demand for more SFC users since ‘green’ method development has become a favorable target for ...
Tricia Naicker, Kamini Govender
doaj   +1 more source

Determination of polar pesticide residues in vegetable and fruit by supercritical fluid chromatography­Q­Orbitrap

Zhongguo shipin weisheng zazhi, 2022
ObjectiveTo establish a method for determination of 12 polar pesticide residues in vegetables and fruits by supercritical fluid chromatography­Q­Orbitrap （SFC­Q­Orbitrap）.MethodsThe samples were extracted with 1% acidified methanol，and the extract was ...
XU Qian, LU Dasheng, QIU Xinlei, FENG Chao, LIN Yuanjie, LE Sunyang, CHEN Yuhang, JIN Yu'e   +7 more
doaj   +1 more source

Qualitative and quantitative phytochemical analysis of different extracts from Thymus algeriensis aerial parts [PDF]

, 2018
This study was performed to evaluate the metabolite recovery from different extraction methods applied to Thymus algeriensis aerial parts. A high-performance liquid chromatographic method using photodiode array detector with gradient elution has been ...
Benayache, Fadila, Benayache, Samir, Boutaoui, Nassima, Campestre, Cristina, Carradori, Simone, Cesa, Stefania, Giusti, Anna Maria, Innosa, Denise, Locatelli, Marcello, Menghini, Luigi, Zaiter, Lahcene   +10 more
core   +2 more sources

A Reproducible SEM Surface Imaging Protocol for Monitoring Microstructural Changes During Gas–Rock Interactions

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Reliable characterization of mineralogical and textural changes in rock samples is essential for understanding fluid–rock interactions, particularly in experimental studies simulating subsurface conditions. This study presents a reproducible protocol for scanning electron microscopy (SEM) analysis of rock surfaces before and after exposure to ...
Berta Ordóñez‐Casado, Timea Kovács, Sara Roces, Edgar Berrezueta   +3 more
wiley   +1 more source

Supercritical fluid chromatography and scale up study

Acta Chimica Slovenica, 2014
The influence of process parameters on supercritical fluid chromatography (SFC) and scale-up on to the preparative scale was investigated. In this scope, dependency of pressure, temperature, type and concentration of modifier, and type of stationary ...
Miha Oman, Petra Kotnik, Mojca Škerget, Željko Knez   +3 more
doaj  

Supercritical CO2 Extracts and Volatile Oil of Basil (Ocimum basilicum L.) Comparison with Conventional Methods

Separations, 2018
Interest in new products from aromatic plants as medical and nutritional compounds is increasing. The aim of this work was to apply different extraction methods, including the use of supercritical carbon dioxide extraction, and to test the antioxidant ...
José Coelho, Jerson Veiga, Amin Karmali, Marisa Nicolai, Catarina Pinto Reis, Beatriz Nobre, António Palavra   +6 more
doaj   +1 more source