4.7 Article

Determination of Temperature-Dependent Coefficients of Viscosity and Surface Tension of Tamarind Seeds (Tamarindus indica L.) Polymer

期刊

POLYMERS
卷 13, 期 4, 页码 -

出版社

MDPI
DOI: 10.3390/polym13040610

关键词

tamarind seed polymer; viscosity; temperature; surface tension; polysaccharide

资金

  1. Galgotias University, India
  2. AIMST university, Malaysia
  3. MAHSA university, Malaysia
  4. Tishk International University, Iraq
  5. University of Science and Technology, Sultanate Oman, Muscat

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The rheological properties of tamarind seed polymer were characterized for potential commercialization in the food and pharmaceutical industry. The study found that the polymer solution is less sensitive to temperature changes compared to other gums, and has excellent physicochemical properties, making it a promising excipient for future drug formulation and application in the food and cosmetics industry.
The rheological properties of tamarind seed polymer are characterized for its possible commercialization in the food and pharmaceutical industry. Seed polymer was extracted using water as a solvent and ethyl alcohol as a precipitating agent. The temperature's effect on the rheological behavior of the polymeric solution was studied. In addition to this, the temperature coefficient, viscosity, surface tension, activation energy, Gibbs free energy, Reynolds number, and entropy of fusion were calculated by using the Arrhenius, Gibbs-Helmholtz, Frenkel-Eyring, and Eotvos equations, respectively. The activation energy of the gum was found to be 20.46 +/- 1.06 kJ/mol. Changes in entropy and enthalpy were found to be 23.66 +/- 0.97 and -0.10 +/- 0.01 kJ/mol, respectively. The calculated amount of entropy of fusion was found to be 0.88 kJ/mol. A considerable decrease in apparent viscosity and surface tension was produced when the temperature was raised. The present study concludes that the tamarind seed polymer solution is less sensitive to temperature change in comparison to Albzia lebbac gum, Ficus glumosa gum and A. marcocarpa gum. This study also concludes that the attainment of the transition state of viscous flow for tamarind seed gum is accompanied by bond breaking. The excellent physicochemical properties of tamarind seed polymers make them promising excipients for future drug formulation and make their application in the food and cosmetics industry possible.

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