Mechanical Properties of Carboxymethyl Cellulose Edible Films

Maǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ

Alaa G.Al-Hashimi¹  Safaa A.Laith¹ 

[1] Department of Food Science and Biotechnology, College of Agriculture, University of Basrah;

关键词: Synthesis;    Carboxylmethyl cellulose;    Edible films;    Extraction;   

DOI  :  10.37077/25200860.2019.129

来源: DOAJ

【 摘 要 】

This study was conducted to extract cellulose and synthesis  carboxymethyl cellulose from flour bran. Fourier Transform Infrared Spectrometer (FT-IR) was used to confirm the existent of the carboxymethyl group. The sample edible films were  prepared using 1, 2, 3, and 4 % CMC, and two types of plasticizers glycerol and  sorbitol, (20, 40 and 60) %. Their qualitative, mechanical, reservation and thermal characteristics were studied. Tensile strength ranged 28-51.3 MPa and elongation percentage ranged between 65.5-91.0 %. The thickness of simple cellulose films were 0.018-0.078 mm. The values of solubility (19.05-36.31%) and the permeability values  of simple cellulose film increased with the increasing of the plasticized ratio.  The highest permeability was 11.99 g.mm/m2.h.kp at 60% glycerol and thermogravimetric analysis for some simple cellulose film plasticized by glycerol were 135, 146.29, 125 and123.23° C.

【 授权许可】

Unknown