A rapid and reliable direct method for quantifying meat acylglycerides with monomode microwave irradiation
Data de publicació2009
MetadadesMostra el registre d'unitat complet
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.
És part deJournal of Chromatography A, 2009, vol. 1216, núm. 15, p. 3290–3295
Projectes de recerca europeus
Mostrant elements relacionats per títol, autor i matèria.
Escribà i Gelonch, Marc; Eras i Joli, Jordi; Villorbina Noguera, Gemma; Balcells Fluvià, Mercè; Blanch, C.; Barniol, N.; Canela i Garayoa, Ramon (Springer Verlag, 2011)Vegetable oils and fats are important renewable raw materials for use by the biodiesel industry. One drawback of this industry is the large amounts of glycerol produced as a by-product. Consequently, crude glycerol is ...
Villorbina Noguera, Gemma; Tomàs, Albert; Escribà i Gelonch, Marc; Oromí Farrús, Mireia; Eras i Joli, Jordi; Balcells Fluvià, Mercè; Canela i Garayoa, Ramon (Elsevier, 2009)We describe here the first example in which glycerol has been transformed into chlorohydrin esters using an ionic liquid and hydrated aluminium chloride. The method avoids using Crown-18 ether, which was needed to obtain ...
Canela Xandri, Anna; Villorbina Noguera, Gemma; Balcells Fluvià, Mercè; Fernández Francos, Xavier; Cabeza, Luisa F.; Canela i Garayoa, Ramon (MDPI, 2019)Nine monoamides were synthesized from carboxylic acids (C8-C18) and crude glycerol. The final monoamides were the result of a rearrangement of the acyl chain during the final hydrogenation process. The purity of the final ...