| Title: | Screening of volatile compounds in honey using a new sampling strategy combining multiple extraction temperatures in a single assay by HS-SPME-GC-MS |
| Author(s): | Bianchin JN; Nardini G; Merib J; Dias AN; Martendal E; Carasek E; |
| Address: | "Departamento de Quimica, Universidade Federal de Santa Catarina, Florianopolis 88040900, SC, Brazil" |
| DOI: | 10.1016/j.foodchem.2013.08.139 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "This paper proposes a new optimization strategy for the extraction of volatile compounds from honey samples using headspace solid-phase microextraction (HS-SPME) and separation/detection by gas chromatography-mass spectrometry (GC-MS). The new optimization strategy was based on the use of three different extraction temperatures in a single assay, aiming at extracting a high number of compounds with wide range of volatilities. As an analytical tool, experimental designs were used for the optimization. The variables extraction time (10-80 min), extraction temperature (0-60 degrees C), water volume (0.5-5 mL) and percentage of sodium chloride saturation in water (0-100%) were optimised using a five-level fractional central composite design with CAR/DVB/PDMS fibre. The final optimised combination of extraction times at each temperature was 60 min with the sample temperature being held at 60 degrees C for 36 min, 40 degrees C for 18 min and 0 degrees C for 6 min. The proposed method was compared to conventional methods which employ one or two extraction temperatures. It was found that the proposed method presented better results considering the response in terms of the arithmetic means of the peak areas. The use of multiple extraction temperatures for the HS-SPME procedure proved to be an excellent alternative for the screening of compounds present in honey with a wide range of volatilities" |
| Keywords: | "Brazil Food Inspection/methods *Food Quality Gas Chromatography-Mass Spectrometry Honey/*analysis Hot Temperature Models, Statistical Salinity Solid Phase Microextraction Time Factors Volatile Organic Compounds/*analysis Hs-spme Honey Multiple extraction;" |
| Notes: | "MedlineBianchin, Joyce Nunes Nardini, Giuliana Merib, Josias Dias, Adriana Neves Martendal, Edmar Carasek, Eduardo eng Comparative Study Research Support, Non-U.S. Gov't England 2013/10/17 Food Chem. 2014 Feb 15; 145:1061-5. doi: 10.1016/j.foodchem.2013.08.139. Epub 2013 Sep 12" |
