A rapid and reliable direct method for quantifying meat acylglycerides with monomode microwave irradiation |
| |
| Authors: | Albert Tomàs Marc Tor Gemma Villorbina Ramon Canela Mercè Balcells Jordi Eras |
| |
| Institution: | 1. Chemistry Department, Lleida University, E-25198 Lleida, Catalonia, Spain;2. Animal Production Department, Lleida University, E-25198 Lleida, Catalonia, Spain |
| |
| Abstract: | A rapid methodology for direct analysis of meat acylglycerides is proposed. A transesterification is carried out in a microwave reactor consisting of a monomode oven using chlorotrimethylsilane (CTMS) and methanol. High-temperature gas chromatography was used to check the absence of underivatized acylglycerides. Whereas transesterification is complete after 30 s at 90 °C in the microwave method, the reference method needs 2 h to complete this process. Moreover, the CTMS–microwave method shows higher recoveries of individual saturated, monounsaturated and polyunsaturated fatty acids. No influence of microwave irradiation on the composition of the fatty acids was observed. |
| |
| Keywords: | Fatty acids Gas chromatography High-temperature gas chromatography Meat samples Microwaves derivatization Chlorotrimethylsilane |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
