Barrier properties of pullulan/starch based films modified with lauric acid

Ahmad, Mazatusziha and Vijayakumaran, Kanchana (2017) Barrier properties of pullulan/starch based films modified with lauric acid. In: Biotechnology in Food Properties and Processing. Series1. Penerbit UTHM, Batu Pahat, Johor, pp. 39-43. ISBN 9789670764931

Text Chapter 6_BFPP_S1.pdf Restricted to Registered users only Download (619kB) | Request a copy

Abstract

Enormous attention has been given in developing active food packaging materials in order to reduce the environmental effects caused by conventional packages. Recent scenario has turned into developing the food packaging materials based on biodegradable polymers such as starch-based materials. Starch, an agricultural raw material was chosen to be developed as it is widely available in nature, renewable and cheap. In this study, the potential of pullulan modified starch based films was investigated with the incorporation of lauric acid. Three types of film were prepared which are starch as control, starch/pullulan as well as starch/pullulan/lauric acid via casting technique. The barrier properties of these blends were assessed via Water Vapor Transmission Rate (WVTR. Further characterization of the blends was conducted via Fourier Transform Infrared Spectroscopy (FTIR) and the surface morphology of the film by Scanning Electron Microscopy (SEM). The results showed that the control films, starch exhibits the highest WVTR. The presence of lauric acid at highest composition of pullulan reduced the WVTR due to the hydrophobicity of the lauric acid. The C-H bond between starch, pullulan and lauric acid was detected via FTIR. The occurrence of peaks attributed to hydrogen bonding and OH group of starch. The composition which exhibited good water vapor resistant is starch modified pullulan at 7:3 ratio incorporated with lauric acid.

Item Type:	Book Section
Uncontrolled Keywords:	Pullulan; Lauric acid; Water vapor transfer rate
Subjects:	T Technology > TP Chemical technology > TP248.13-248.65 Biotechnology
Divisions:	Faculty of Engineering Technology > Department of Chemical Engineering Technology
Depositing User:	Mrs. Farizah Sudin
Date Deposited:	16 Jan 2022 06:59
Last Modified:	16 Jan 2022 06:59
URI:	http://eprints.uthm.edu.my/id/eprint/4489

Actions (login required)

View Item