Journal of Food Science and Technology

, Volume 51, Issue 9, pp 2014–2021 | Cite as

Effect of spray drying on the sensory and physical properties of hydrolysed casein using gum arabic as the carrier

  • S. F. Subtil
  • G. A. Rocha-Selmi
  • M. Thomazini
  • M. A. Trindade
  • F. M. Netto
  • C. S. Favaro-TrindadeEmail author
Original Article


This study was aimed at spray drying hydrolysed casein using gum Arabic as the carrier agent, in order to decrease the bitter taste. Three formulations with differing proportions of hydrolysed casein: gum Arabic (10:90, 20:80 and 30:70) were prepared and characterized. They were evaluated for their moisture content, water activity, hygroscopicity, dispersibility in water and in oil, particle size and distribution, particle morphology, thermal behaviour (DSC) and bitter taste by a trained sensory panel using a paired-comparison test (free samples vs. spray dried samples). The proportion of hydrolysed casein did not affect the morphology of the microspheres. The spray drying process increased product stability and modified the dissolution time, but had no effect on the ability of the material to dissolve in either water or oil. The sensory tests showed that the spray drying process using gum Arabic as the carrier was efficient in attenuating or masking the bitter taste of the hydrolysed casein.


Microencapsulation Encapsulation Bitter taste Thermal behaviour Sensory analysis 



The authors are grateful to the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) for their financial support (Process 05/56674-3) and for the scholarships conceded (Processes 05/55374-6 and 06/56714-8).


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Copyright information

© Association of Food Scientists & Technologists (India) 2012

Authors and Affiliations

  • S. F. Subtil
    • 1
  • G. A. Rocha-Selmi
    • 2
  • M. Thomazini
    • 1
  • M. A. Trindade
    • 1
  • F. M. Netto
    • 2
  • C. S. Favaro-Trindade
    • 1
    Email author
  1. 1.College of Animal Science and Food EngineeringUniversity of São Paulo (USP)PirassunungaBrazil
  2. 2.College of Food EngineeringState University of Campinas (UNICAMP)CampinasBrazil

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