Objective: To determine effects of volatile compounds in homes on the behavioral response of Anopheles albimanus.
Material And Methods: The study was conducted in January 2006, in the village of Nueva Independencia village, Suchiate, Chiapas. Volatile compounds were collected inside homes and the extracts were tested on unfed females in a Y-olfactometer. Extracts were analyzed in a gas chromatography-mass spectrometry system (GC-MS).
Results: Twenty eight extracts were obtained, twelve presented attraction and two repellency responses. GC-MS analyses of the extracts indicated variation in the volatile compound present in the extracts, but could not associated specific compounds with any particular effect.
Conclusions: Within homes, volatiles presented attraction and repellency responses to An. albimanus. A definate pattern concerning the presence of a characteristic chemical compound and the observed response was not found.
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http://dx.doi.org/10.1590/s0036-36342008000500009 | DOI Listing |
Anal Chim Acta
February 2025
Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan; International College of Semiconductor Technology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan. Electronic address:
Background: Ambient ionization mass spectrometry (MS) has attracted significant attention due to its simplicity and ease of operation. Contactless, or field-induced, ionization is one of the ambient ionization techniques. In this approach, no direct electrical contact or additional voltage is required on the ionization-assisted substrate.
View Article and Find Full Text PDFAnal Chim Acta
February 2025
Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil; Instituto Nacional de Ciência e Tecnologia de Bioanalítica, Campinas, 13084-971, SP, Brazil. Electronic address:
Background: Distinct classes of environmental contaminants - such as microplastics, volatile organic compounds, inorganic gases, hormones, pesticides/herbicides, and heavy metals - have been continuously released into the environment from different sources. Anthropogenic activities with unprecedented consequences have impacted soil, surface waters, and the atmosphere. In this scenario, developing sensing materials and analytical platforms for monitoring water and air quality is essential to supporting worldwide environmental control agencies.
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December 2024
BIOLAFFORT, 11 rue Aristide Berges, 33270 Floirac, France; UMR OENO, Université de Bordeaux, INRAE, INP, BSA, ISVV, 210 Chemin de Leysotte, 33882 Villenave d'Ornon, France. Electronic address:
The alcoholic fermentation of wine is mostly achieved by the species Saccharomyces cerevisiae that display a large variability for their ability to consume or produce malic acid. To better characterize the metabolism of such group of strains we explored their non-volatile metabolome using an untargeted LC-HRMS approach. The chemical classes and the putative structures of several hundred compounds where annotated using MS2 spectra using the SIRIUS software.
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January 2025
Shandong Academy of Grape, Shandong, Academy of Agricultural Sciences, Jinan 250100, China. Electronic address:
Grapevine white rot is a fungal disease that frequently occurs during the growing season, resulting in reduced fruit quality and severe yield losses. This work aimed to compare the differences in flavor profiles between wines made from different percentages of Coniella vitis-infected grapes by using FTIR spectrometer, sensory analysis, HS-SPME-GC-MS and HPLC-DAD. C.
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January 2025
School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia. Electronic address:
The study highlights the impact of different carbohydrate-based wall materials on the encapsulation and release of flavors and physicochemical characteristics of spray-dried oleoresin blends. The inlet temperature and the wall material type significantly affected the spray drying yield, and Hi-Cap 100, at 150 °C, produced the highest yield. All the wall materials had high water solubility, and Hi-Cap 100 reported the best wettability.
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