Journal of Food Science and Technology

, Volume 50, Issue 6, pp 1179–1185 | Cite as

Chemical composition, functional and pasting properties of cassava starch and soy protein concentrate blends

  • Chiemela Enyinnaya ChinmaEmail author
  • Charles Chukwuma Ariahu
  • Joseph Oneh Abu
Original Article


The chemical, functional and pasting properties of cassava starch and soy protein concentrate blends intended for biofilm processing were studied. Cassava starch and soy protein concentrates were prepared and mixed at different proportions (100: 0%; 90 : 10%; 80 : 20%; 70 : 30%; 60;40% and 50: 50%). Addition of varying levels of soy protein concentrates to cassava starch led to increases in moisture (from 7.10 to 9.17%), protein ( from 0.32 to 79.03%), ash (from 0.45 to 2.67%) and fat (from 0.17 to 0.98%) contents while crude fiber, carbohydrate and amylose contents decreased from ( 1.19 to 0.38%, 90.77 to 57.01% and 29.45 to 23.04%) respectively . Water absorption capacity and swelling power of cassava starch were improved as a result of soy protein concentrate addition while syneresis and solubility value of composite blends were lower than 100% cassava starch. In general, cassava–soy protein concentrate blends formed firmer gels than cassava starch alone. There were significant (p ≤ 0.05) increases in peak viscosity (from 160.12 to 268.32RVU), final viscosity (from 140.41 to 211.08RVU) and pasting temperature (from 71.00 to 72.32 °C ) of cassava starch due to addition of soy protein concentrate. These results suggest that the addition of soy protein concentrate to cassava starch affected the studied functional properties of cassava starch as evidenced by changes such as reduced syneresis, and solubility that are desirable when considering this biopolymer as an edible biofilm.


Cassava starch Soy protein concentrate Functional Syneresis Pasting properties 



Chinma, C.E. is grateful to Federal University of Technology, Minna, Nigeria for the award of postgraduate fellowship.


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Copyright information

© Association of Food Scientists & Technologists (India) 2011

Authors and Affiliations

  • Chiemela Enyinnaya Chinma
    • 1
    Email author
  • Charles Chukwuma Ariahu
    • 2
  • Joseph Oneh Abu
    • 2
  1. 1.Department of Food Science and NutritionFederal University of TechnologyMinnaNigeria
  2. 2.Department of Food Science and TechnologyUniversity of AgricultureMakurdiNigeria

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