Influence of the presence of ethanol on in vitro bioavailability of fungicide residues. 2016

S Cermeño, and G Martínez, and J Oliva, and M A Cámara, and A Barba
Department of Agricultural Chemistry, Geology and Pedology, Faculty of Chemistry, University of Murcia, Campus de Espinardo, s/n, 30100, Murcia, Spain.

The influence of ethanol on the in vitro bioavailability of nine fungicides in wines of varying degrees of alcohol is studied by simulating the digestive process by dialysis in semipermeable membranes. The dose of each fungicide corresponds to its added Maximum Residue Limits in the different matrices (water, ethanol, wines of 7, 11, 13 and 14.5% ethanol). A validated analytical methodology was used which includes extraction, partition according to the modified QuEChERS multiresidue method and liquid chromatography with triple quadrupole tandem mass spectrometry analysis. Interaction between the ethanol content and bioavailability was confirmed and increases were found in the dialyzed percentages with respect to the blank (the standard in water) for ametoctradin, mepanipyrim, cyazofamid, pyraclostrobin and metrafenone, while a decrease was observed for dimethomorph, boscalid and kresoxim-methyl. Fenhexamid showed no significant differences by alcohol content.

UI MeSH Term Description Entries
D008567 Membranes, Artificial Artificially produced membranes, such as semipermeable membranes used in artificial kidney dialysis (RENAL DIALYSIS), monomolecular and bimolecular membranes used as models to simulate biological CELL MEMBRANES. These membranes are also used in the process of GUIDED TISSUE REGENERATION. Artificial Membranes,Artificial Membrane,Membrane, Artificial
D010573 Pesticide Residues Pesticides or their breakdown products remaining in the environment following their normal use or accidental contamination. Pesticide Residue,Residue, Pesticide,Residues, Pesticide
D002492 Central Nervous System Depressants A very loosely defined group of drugs that tend to reduce the activity of the central nervous system. The major groups included here are ethyl alcohol, anesthetics, hypnotics and sedatives, narcotics, and tranquilizing agents (antipsychotics and antianxiety agents). CNS Depressants,Depressants, CNS
D003956 Dialysis A process of selective diffusion through a membrane. It is usually used to separate low-molecular-weight solutes which diffuse through the membrane from the colloidal and high-molecular-weight solutes which do not. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Dialyses
D000431 Ethanol A clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in ALCOHOLIC BEVERAGES. Alcohol, Ethyl,Absolute Alcohol,Grain Alcohol,Alcohol, Absolute,Alcohol, Grain,Ethyl Alcohol
D001682 Biological Availability The extent to which the active ingredient of a drug dosage form becomes available at the site of drug action or in a biological medium believed to reflect accessibility to a site of action. Availability Equivalency,Bioavailability,Physiologic Availability,Availability, Biologic,Availability, Biological,Availability, Physiologic,Biologic Availability,Availabilities, Biologic,Availabilities, Biological,Availabilities, Physiologic,Availability Equivalencies,Bioavailabilities,Biologic Availabilities,Biological Availabilities,Equivalencies, Availability,Equivalency, Availability,Physiologic Availabilities
D014920 Wine Fermented juice of fresh grapes or of other fruit or plant products used as a beverage. Wines
D053719 Tandem Mass Spectrometry A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection. Mass Spectrometry-Mass Spectrometry,Mass Spectrometry Mass Spectrometry,Mass Spectrometry, Tandem
D027843 Vitis A plant genus in the family Vitaceae. It is a woody vine cultivated worldwide. It is best known for grapes, the edible fruit and used to make WINE and raisins. Grapes,Raisins,Vitis vinifera,Grape,Raisin
D066298 In Vitro Techniques Methods to study reactions or processes taking place in an artificial environment outside the living organism. In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In

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