| Literature DB >> 31704079 |
Monika Turkowicz1, Izabella Jastrzebska2, Marta Hryniewicka2, Urszula Kotowska2, Diana Gudalewska2, Joanna Karpińska2.
Abstract
The presented work is aimed to synthesize a new UV active derivative of α-lipoic acid (ALA) by its esterification with 4-methoxybenzyl alcohol (4-MBA, anise alcohol). The formation of ester was confirmed by 1HNMR, FTIR and UV spectroscopy. The analytical usefulness of the obtained compound for quantification of ALA in food items was examined using HPLC-UV and GC-MS systems. It was found that it is possible to assay ALA in the ester form in the concentration ranges: 5·10-6-1·10-4 mol L-1 by HPLC-UV and 1∙10-7-5∙10-5 mol L-1 by GC-MS techniques. The GC-MS procedure was applied for the determination of ALA in the food samples.Entities:
Keywords: 4-methoxybenzyl alcohol; Chromatographic analysis; Derivatization reaction; Lipoic acid
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Year: 2019 PMID： 31704079 DOI： 10.1016/j.foodchem.2019.125750
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514