Int. J. Mol. Sci. 2012, 13(11), 14871-14888; doi:10.3390/ijms131114871
Article

Influence of Chemical Extraction on Rheological Behavior, Viscoelastic Properties and Functional Characteristics of Natural Heteropolysaccharide/Protein Polymer from Durio zibethinus Seed

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Received: 13 August 2012; in revised form: 17 September 2012 / Accepted: 16 October 2012 / Published: 13 November 2012
(This article belongs to the Section Bioactives and Nutraceuticals)
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Abstract: In recent years, the demand for a natural plant-based polymer with potential functions from plant sources has increased considerably. The main objective of the current study was to study the effect of chemical extraction conditions on the rheological and functional properties of the heteropolysaccharide/protein biopolymer from durian (Durio zibethinus) seed. The efficiency of different extraction conditions was determined by assessing the extraction yield, protein content, solubility, rheological properties and viscoelastic behavior of the natural polymer from durian seed. The present study revealed that the soaking process had a more significant (p < 0.05) effect than the decolorizing process on the rheological and functional properties of the natural polymer. The considerable changes in the rheological and functional properties of the natural polymer could be due to the significant (p < 0.05) effect of the chemical extraction variables on the protein fraction present in the molecular structure of the natural polymer from durian seed. The natural polymer from durian seed had a more elastic (or gel like) behavior compared to the viscous (liquid like) behavior at low frequency. The present study revealed that the natural heteropolysaccharide/protein polymer from durian seed had a relatively low solubility ranging from 9.1% to 36.0%. This might be due to the presence of impurities, insoluble matter and large particles present in the chemical structure of the natural polymer from durian seed.
Keywords: heteropolysaccharide/protein biopolymer; chemical extraction; decolorizing process; soaking process; protein fraction; rheological properties; viscoelastic behavior
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MDPI and ACS Style

Amid, B.T.; Mirhosseini, H. Influence of Chemical Extraction on Rheological Behavior, Viscoelastic Properties and Functional Characteristics of Natural Heteropolysaccharide/Protein Polymer from Durio zibethinus Seed. Int. J. Mol. Sci. 2012, 13, 14871-14888.

AMA Style

Amid BT, Mirhosseini H. Influence of Chemical Extraction on Rheological Behavior, Viscoelastic Properties and Functional Characteristics of Natural Heteropolysaccharide/Protein Polymer from Durio zibethinus Seed. International Journal of Molecular Sciences. 2012; 13(11):14871-14888.

Chicago/Turabian Style

Amid, Bahareh T.; Mirhosseini, Hamed. 2012. "Influence of Chemical Extraction on Rheological Behavior, Viscoelastic Properties and Functional Characteristics of Natural Heteropolysaccharide/Protein Polymer from Durio zibethinus Seed." Int. J. Mol. Sci. 13, no. 11: 14871-14888.


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