In French Guiana, Philodendron fragrantissimum (Hook.) G.Don was specifically pollinated by a single species of night-active cyclocephaline scarab, Cyclocephala simulatrix Höhne. Its inflorescences exhibited short-lasting anthesis (~30 h) and characteristic floral traits such as thermogenesis, edible/nutritious tissues, profuse scent emission. Our insect exclusion experiments indicate that ento...

Styrax is a gorgeous species combined with high medicinal and ornamental values, however, information about its floral scents limited. This study aimed to reveal the scent compounds dynamic changes in flowering process of japonicus, S. grandiflora calvescens. Static headspace solid-phase microextraction coupled gas chromatography-mass spectrometry was adopted present study. The results showed t...

Ethyl formate (EtF) is being evaluated as a fumigant for the rapid disinfestation of grain, including a cylinderised mixture of EtF in carbon dioxide (16.7% by weight), VAPORMATETM, formulated by BOC Ltd. Insect mortality achieved with a 3-hour dynamic (forced-flow) application versus a static application of the EtF formulation was investigated. In the dynamic application, gaseous VAPORMATETM w...

in this paper, the possibility of using a new ordered nanoporous carbon as a new fiber in headspace solid phase microextraction (hs-spme) to determine of mononitrotoluenes (mnts) in waste water is demonstrated. the structural order and textural properties of the ordered nanoporous carbon were studied by x ray diffraction (xrd), scanning electron microscopy (sem) images and nitrogen adsorption i...

A static capillary gas chromatographic method using three different detectors [photoionization detector (PID), electron capture detector (ECD) and flame ionization detector (FID)] switched in series is presented for the determination of volatile organic compounds (VOCs) in sub microgram l-1 levels. The method was applied for the analysis of selected environmentally and occupationally relevant n...

Tributyltin (TBT) is one of the most toxic anthropogenic compounds introduced into the marine environment. Despite its global ban in 2008, TBT is still a problem of great concern due to its high affinity for particulate matter, providing a direct and potentially persistent route of entry into benthic sediments. Bioremediation strategies may constitute an alternative approach to conventional phy...

Although considered pharmacologically inert, pharmaceutical excipients have been shown to interact with active drug substances to affect the safety and efficacy of drug products.1 Therefore, there is an increasing awareness of the necessity to understanding interactions between excipients and the active pharmaceutical ingredient (API) in finished dosage forms. One of the areas of major concern ...

Control of paratuberculosis in livestock is hampered by the low sensitivity of established direct and indirect diagnostic methods. Like other bacteria, Mycobacterium avium subsp. paratuberculosis (MAP) emits volatile organic compounds (VOCs). Differences of VOC patterns in breath and feces of infected and not infected animals were described in first pilot experiments but detailed information on...

Hop (Humulus lupulus L., Cannabaceae family) is prized for its essential oil contents, used in beer production and, more recently, in biological and pharmacological applications. In this work, a method involving headspace solid-phase microextraction and gas chromatography-mass spectrometry was developed and optimized to establish the terpenoid (monoterpenes and sesquiterpenes) metabolomic patte...