Journal of Thermal Analysis and Calorimetry

, Volume 123, Issue 3, pp 2469–2475 | Cite as

Thermal characterization of Arrabidaea chica (Humb. & Bonpl.) B. Verl. dry extracts obtained by spray dryer

  • Rita de Cássia Almeida Sampaio
  • Russany Silva da Costa
  • Claudia Regina Fernandes de Souza
  • Anivaldo Pereira Duarte Júnior
  • Roseane Maria Ribeiro-Costa
  • Carlos Emmerson Ferreira da Costa
  • Wanderley Pereira de Oliveira
  • Attilio Converti
  • José Otávio Carréra Silva Júnior


This work aimed at characterizing, by thermogravimetry (TG/DTG) and DTA, dry extracts of Arrabidaea chica (Humb. & Bompl.) B. Verl. (A. chica) leaves obtained by spray drying using maltodextrin and gum arabic as adjuvants. Dry extracts structure and morphology were also evaluated through FT-IR spectroscopy and scanning electron microscopy (SEM). TG/DTG and DTA analyses were used to determine samples thermal profiles. Thermal analysis demonstrated that the blend containing 25 % hydroalcoholic A. chica extract, 25 % gum arabic and 50 % maltodextrin had the strongest interaction between adjuvants and hydroalcoholic extract, thus proving the best blending proportion. FT-IR spectroscopy profile, which was used to infer the chemical composition of powdered A. chica leaves and dry extract (F4), showed typical absorption bands deriving from links of functional groups remained over the powdered A. chica leaves. SEM revealed a heterogeneous morphology with smooth surface and rough surface of different dry extracts obtained. Thermoanalytical and spectrometric techniques proved valuable tools to investigate physicochemical characteristics of dry extracts obtained from A. chica leaves.


Arrabidaea chica Dry extract Spray dryer Thermal analysis Maltodextrin Arabic gum 



The authors thank the Coordination of Improvement of Higher Education Personnel (CAPES), the Research Support Foundation of the State of Pará (FAPESPA) and the Postgraduate Studies and Research (PROPESP/UFPA).


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2015

Authors and Affiliations

  • Rita de Cássia Almeida Sampaio
    • 1
  • Russany Silva da Costa
    • 1
  • Claudia Regina Fernandes de Souza
    • 2
  • Anivaldo Pereira Duarte Júnior
    • 3
  • Roseane Maria Ribeiro-Costa
    • 3
  • Carlos Emmerson Ferreira da Costa
    • 4
  • Wanderley Pereira de Oliveira
    • 2
  • Attilio Converti
    • 5
  • José Otávio Carréra Silva Júnior
    • 1
  1. 1.Laboratory R & D Pharmaceutical and Cosmetic, College of PharmacyFederal University of ParáBelémBrazil
  2. 2.Laboratory R & D Pharmaceutical ProcessesUniversity of São PauloRibeirão Preto, São PauloBrazil
  3. 3.Laboratory Quality Control, College of PharmacyFederal University of ParáBelémBrazil
  4. 4.Laboratory of Catalysis and Petrochemistry, College of ChemistryFederal University of ParáBelémBrazil
  5. 5.Department of Civil, Chemical and Environmental Engineering, Pole of Chemical EngineeringUniversity of GenovaGenovaItaly

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