Results 51 to 60 of about 10,305 (228)

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

Bioactive Phytochemical Compounds in Medicago sativa L. (Alfalfa): A Systematic Review of Biological Properties and Therapeutic Relevance in Nutraceutical and Functional Food Implications

Food Frontiers, EarlyView.
ABSTRACT Medicago sativa L. (alfalfa) harbors a remarkably diverse reservoir of bioactive secondary metabolites. Flavonoids, isoflavones, and triterpenoid saponins dominate its bioactivity landscape, driving potent antioxidant, anti‐inflammatory, antimicrobial, estrogenic, hypolipidemic, and cytotoxic actions through redox modulation, membrane ...
Parham Joolaei Ahranjani, Hamid Rashidi Nodeh, Zahra Esfandiari, Giovanna Ferrentino   +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  

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

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

Essential Oils from Humulus Lupulus scCO₂ Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation

Molecules, 2018
Two different extraction methods were used for a comparative study of essential oils obtained from the Humulus lupulus scCO2 (sc-supercritical) extract: microwave-assisted hydrodistillation (MAHD) and conventional hydrodistillation (HD). As a result, the
Katarzyna Tyśkiewicz, Roman Gieysztor, Marcin Konkol, Jan Szałas, Edward Rój   +4 more
doaj   +1 more source

Geological Storage of CO2 and H2: A Bibliometric Synthesis of General and Laboratory‐Scale Research Evolution

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Underground gas storage is a cornerstone technology for addressing climate change and advancing the clean energy transition. By managing greenhouse gas emissions and enhancing energy system resilience, it supports global sustainability goals.
Sara Roces, Jhon Caicedo‐Potosí, Timea Kovács, Berta Ordóñez‐Casado, Sergio Llana‐Fúnez, Edgar Berrezueta   +5 more
wiley   +1 more source

Chirale stationäre Phasen mit (+)-(R)-N-(1-Phenylethyl)-N?-[3-(diethoxymethylsilyl)propyl]harnstoff für die direkte Enantiomerentrennung mit Kapillargaschromatographie und überkritischer Fluidchromatographie

CHIMIA, 1991
Five different polymer stationary phases with (+)-(R)-N-(1-phenylethyl)-N?-[3-(diethoxymethylsilyl)propyl]urea as the chiral selector have been synthesized and tested for direct enantiomer separation in capillary gas and supercritical fluid ...
André Marti, Peter Krähenbühl, René Brügger, Hans Arm   +3 more
doaj   +2 more sources

Upcycling orange by‐product: phenolic bioaccessibility and technological features of jelly candies enriched with hydroalcoholic and enzymatic extracts

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Phenolic extracts are recognized for their health‐promoting properties, although some physicochemical characteristics limit their food applications. The present study aimed to valorize orange juice by‐products through enzymatic and hydroalcoholic extraction to obtain flavonoid ingredients and to evaluate their application in pectin ...
Bárbara Morandi Lepaus, Nathalia Almeida Costa, Gabriela de Matuoka e Chiocchetti, Paula de Paula Menezes Barbosa, Marise Bonifácio Queiroz, Izabela Dutra Alvim, Juliana Alves Macedo, Gabriela Alves Macedo   +7 more
wiley   +1 more source

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