Journal
THERMOCHIMICA ACTA
Volume 716, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.tca.2022.179323
Keywords
Ethyl maltol; Flavors; Flavor precursors; Pyrolysis; Complexes
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The thermal stability of volatile flavors can be improved through a novel complexation strategy, which also allows for effective regulation of the release temperature of flavors.
Recently, the requirements for highly stable flavor additives are continuously increasing to meet new demands on storage and usage. To solve this issue, we propose to improve the thermal stability of volatile flavors through a novel complexation strategy. In this work, four ethyl maltol-containing metal complexes were synthesized and structurally characterized. The thermal stability of flavor precursors in both oxidative and pyrolysis conditions was significantly improved about 100-200 ???C compared with that of ethyl maltol. Furthermore, the real-time monitoring of product formation by a photoionization mass spectrometry and the analysis of volatile compo-nents by GC???MS confirmed that ethyl maltol can be effectively released from complex pyrolysis at relatively high temperatures, proving that the exploitation of metal complexes as flavor precursors is a practical strategy not only to enhance the thermal stability and but also to effectively regulate the release temperature of flavors. Superscript/Subscript Available
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