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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Thermal and spectroscopic studies of the antioxidant food additive propyl gallate

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Galico, D. A. [1] ; Nova, C. V. [1] ; Guerra, R. B. [1] ; Bannach, G. [1]
Total Authors: 4
[1] UNESP Univ Estadual Paulista, Fac Ciencias, Dept Quim, BR-17033260 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Food Chemistry; v. 182, p. 89-94, SEP 1 2015.
Web of Science Citations: 7

Literature mentions propyl gallate (PG) as a non-toxic synthetic antioxidant that can be used as a food additive due to its high tolerance to heat. It is important to understand the thermal properties and to identify the decomposition products of this substance, since it has been reported to be thermally stable at temperatures as high as 300 degrees C. Simultaneous thermogravimetry-differential thermal analysis (TG-DTA), differential scanning calorimetry-photovisual (DSC-photovisual), coupled thermogravimetry-infrared spectroscopy (TG-FTIR) analyses and spectroscopic techniques were used to study the food additive PG. The TG-DTA curves, which were performed with the aid of DSC-photovisual, provided information concerning the thermal stability and decomposition profiles of the compound. From the TG-FTIR coupled techniques, it was possible to identify n-propanol as a possible volatile compound released during the thermal decomposition of the antioxidant. A complete spectroscopic characterization in the ultraviolet, visible, near and middle infrared regions was performed in order to understand the spectroscopic properties of PG. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 12/21450-1 - Thermoanalytical studies, synthesis and characterization of the solid co-crystals of ketoprofen with some co-formers
Grantee:Gilbert Bannach
Support type: Regular Research Grants
FAPESP's process: 13/09022-7 - Thermoanalytical studies, synthesis and characterization of the solid co-crystals of antibiotics (fluoroquinolones) with some co-formers
Grantee:Massao Ionashiro
Support type: Regular Research Grants