Effect of plasticizer type and concentration on physical properties of biodegradable films based on sugar palm (arenga pinnata) starch for food packaging

Sahari Japar, and Ishak M.R., and Jawaid M., and Sapuan S.M., and Sanyang M.L, (2016) Effect of plasticizer type and concentration on physical properties of biodegradable films based on sugar palm (arenga pinnata) starch for food packaging. Journal of Food Science and Technology , 53 (1). pp. 326-336. ISSN 0022-1155

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Official URL: http://dx.doi.org/10.1007/s13197-015-2009-7

Abstract

In this study, sugar palm starch (SPS) films were developed using glycerol (G), sorbitol (S) or their combination (GS) as plasticizers at the ratio of 15, 30 and 45 (wt)% using casting technique. The addition of plasticizers to SPS film-forming solutions helped to overcome the brittle and fragile nature of unplasticized SPS films. Increased plasticizer concentration resulted to an increase in film thickness, moisture content and solubility. On the contrary, density and water absorption of plasticized films decreased with increasing plasticizer concentration. Raising the plasticizer content from 15 to 45 % showed less effect on the moisture content and water absorption of S-plasticized films. Films containing glycerol and glycerol-sorbitol plasticizer (G, and GS) demonstrated higher moisture content, solubility and water absorption capacity compared to S-plasticized films. The results obtained in this study showed that plasticizer type and concentration significantly improves film properties and enhances their suitability for food packaging applications.

Item Type:Article
Uncontrolled Keywords:Sugar palm, Starch, Biodegradable films, Plasticizer, Glycerol, Sorbitol
Subjects:T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions:FACULTY > Faculty of Science and Natural Resources
ID Code:13842
Deposited By:IR Admin
Deposited On:12 Aug 2016 11:37
Last Modified:12 Aug 2016 11:37

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