Effect of Glycerol on the Properties of Tapioca Starch Film

Abstract:

Biodegradable films from tapioca starch (TPS) were formed by tape casting. The impact of glycerol (0, 5, 10, 15 and 20%) on the mechanical properties was investigated. The increase in glycerol content reduces the tensile strength while increasing the elongation at break. The varying concentrations of glycerol led to changes in tapioca starch edible film properties, potentially affecting film performances. The merging and increase in the intensity of absorption between 3700-3300 cm^-1 as a result of increase in glycerol proportion is due to possible interaction of the OH groups in TPS and glycerol thereby increasing intermolecular H-bond.

• Periodical: Materials Science Forum (Volume 888)
• Pages: 239-243
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.888.239
• Online since: March 2017
• Authors: Ajiya Dahiru Adamu*, Suzi Salwah Jikan, Balkis Haji A. Talip, Nur Azam Badarulzaman, Shehu Yahaya
• Keywords: Biodegradable, FTIR, Tapioca Starch, Tensile Strength

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