Thermoanalytical studies of some sweeteners

Lucinéia Cristina De Carvalho, Milena Pinotti Segato, Ronaldo Spezia Nunes, C. Novák, Éder Tadeu Gomes Cavalheiro

Research output: Article

10 Citations (Scopus)

Abstract

The thermal decomposition behavior of acesulfame-K (ACK), aspartame (ASP), sodium cyclamate (SCL), saccharine (SAC), and sodium saccharine (SSA) were investigated. After re-crystallization of the commercial samples the compounds were characterized by using elemental analysis, IR spectroscopy and thermoanalytical techniques (TG/DTG, DTA, and DSC). Evidences of hydrate water loss were observed for SSA and ASP. Melting was detected for SSA and SAC. Each compound decomposed in a characteristics way. The decomposition of APS and SAC took place completely, while ACK, SCL and SSA resulted in K2SO 4, Na2SO4, and Na2SO4, as residues respectively. The Flynn-Wall-Ozawa method for kinetic calculations was applied for the volatilization of saccharine resulting in E a = 80 ± 1 kJ mol-1 and log A = 7.36 ± 0.07 min-1.

Original languageEnglish
Pages (from-to)359-365
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume97
Issue number1
DOIs
Publication statusPublished - júl. 2009

Fingerprint

Sweetening Agents
Cyclamates
Sodium
sodium
Aspartame
Hydrates
Vaporization
Differential thermal analysis
water loss
Infrared spectroscopy
Melting
Pyrolysis
vaporizing
Decomposition
hydrates
Kinetics
thermal decomposition
Water
thermal analysis
Chemical analysis

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics

Cite this

De Carvalho, L. C., Segato, M. P., Nunes, R. S., Novák, C., & Cavalheiro, É. T. G. (2009). Thermoanalytical studies of some sweeteners. Journal of Thermal Analysis and Calorimetry, 97(1), 359-365. https://doi.org/10.1007/s10973-009-0262-6

Thermoanalytical studies of some sweeteners. / De Carvalho, Lucinéia Cristina; Segato, Milena Pinotti; Nunes, Ronaldo Spezia; Novák, C.; Cavalheiro, Éder Tadeu Gomes.

In: Journal of Thermal Analysis and Calorimetry, Vol. 97, No. 1, 07.2009, p. 359-365.

Research output: Article

De Carvalho, LC, Segato, MP, Nunes, RS, Novák, C & Cavalheiro, ÉTG 2009, 'Thermoanalytical studies of some sweeteners', Journal of Thermal Analysis and Calorimetry, vol. 97, no. 1, pp. 359-365. https://doi.org/10.1007/s10973-009-0262-6
De Carvalho, Lucinéia Cristina ; Segato, Milena Pinotti ; Nunes, Ronaldo Spezia ; Novák, C. ; Cavalheiro, Éder Tadeu Gomes. / Thermoanalytical studies of some sweeteners. In: Journal of Thermal Analysis and Calorimetry. 2009 ; Vol. 97, No. 1. pp. 359-365.
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