Thermal characterization and compounds identification of commercialStevia rebaudianaBertoni sweeteners and thermal degradation products at high temperatures by TG-DSC, IR and LC-MS/MS

Autor(es)

Nunes, Wilhan Donizete Goncalves ^{[1, 2]} ; Russo, Helena Mannochio ^[1] ; Bolzani, Vanderlan da Silva ^[1] ; Caires, Flavio Junior ^{[1, 3]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Inst Quim, Araraquara, SP - Brazil

^[2] Inst Fed Educ Ciencia & Tecnol Rondonia IFRO, Campus Ji Parana, Ji Parana, RO - Brazil

^[3] Univ Estadual Paulista Unesp, Fac Ciencias, Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY; v. 146, n. 3, p. 1149-1155, NOV 2021.
• Citações Web of Science: 2

Resumo

The thermal behavior of two commercially available sweeteners based onStevia rebaudianaBertoni was studied by TG-DSC and EGA. The composition prior and after heating was analyzed by LC-MS/MS to identify the steviol glycosides present in each formulation and thermal degradation products, respectively. The two formulations (S1 and S2) presented thermal stability up to at least 200 degrees C. By DSC, it was possible to identify the presence of rebaudioside (REB) C and REB A in S1. S2 was composed mainly by erythritol (confirmed by both DSC and FTIR), REB A and E. By LC-MS/MS analyses, it was possible to observe that S1 is composed mainly by stevioside and REB A, E, C and B, and that the major products formed after heating are, basically, partially deglycosylated steviol structures. The thermal decomposition products were different depending on the formulation employed. These chemical changes in the compounds' properties can cause a change in the desired taste and solubility of the formulations. (AU)

• Processo FAPESP: 13/07600-3 - CIBFar - Centro de Inovação em Biodiversidade e Fármacos
• Beneficiário: Glaucius Oliva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
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• Beneficiário: Flávio Junior Caires
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/16970-7 - Estudo do impacto da função de eIF5A no perfil proteômico celular utilizando o modelo de Saccharomyces cerevisiae
• Beneficiário: Cleslei Fernando Zanelli
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• Processo FAPESP: 14/50926-0 - INCT 2014: biodiversidade e produtos naturais
• Beneficiário: Vanderlan da Silva Bolzani
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático