Volume : IV, Issue : II, February - 2014

Properties of Curdlan Film as Influenced by Types and Concentrations of Plasticizers

Thummanoon Prodpran, Soottawat Benjakul

Abstract :

Effect of different types of plasticizers (glycerol, sorbitol and polyethylene glycol-400) on properties of film from curdlan (β-1,3-glucan) was studied. Film without plasticizer was mostly ittle, and became more flexible in the presence of plasticizer. Glycerol showed the highest plasticizing effect, providing the highest film elongation or flexibility, as compared to the others at the same concentration used. Properties of curdlan film added with glycerol at various concentrations (0 - 60% based on curdlan) were also investigated. Tensile strength (TS) of the film generally decreased but elongation at eak (EAB) and water vapor permeability (WVP) increased as glycerol content increased (p<0.05). The film of curdlan containing glycerol at 50% exhibited the greatest mechanical properties. Therefore, glycerol as plasticizer at appropriate amount could improve flexibility of curdlan film.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Thummanoon Prodpran, Soottawat Benjakul Properties of Curdlan Film as Influenced by Types and Concentrations of Plasticizers Indian Journal of Applied Research, Vol.IV, Issue. II

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