Development and characterization of antibacterial sugar palm nanoparticles crystalline cellulose (SPNCCs) reinforced sugar palm starch (SPS) nanocomposites film: effect on mechanical properties and bactericidal activity of silver nanoparticles (AgNPs)

A.Rozilah, * C.N. Aiza Jaafar, S. M. Sapuan

  • Che Nor Aiza Jaafar

Abstract

Development and characterization of antibacterial sugar palm nanoparticles crystalline cellulose (SPNCCs) reinforced sugar palm starch (SPS) nanocomposites film: effect on mechanical properties and bactericidal activity of silver nanoparticles (AgNPs)

A.Rozilah, 1* C.N. Aiza Jaafar, 2 S. M. Sapuan 1, 2
1Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia 2Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

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Abstract The development and characterization of environmentally friendly films from sugar palm starch (SPS), Sugar palm nanoparticles crystalline cellulose (SPNCCs) and silver nanoparticles (AgNPs) were established. The mechanical properties, bactericidal effect and strong interaction of nanofiller fiber on the core surface of films were greatly improved after formation of antibacterial SPS/SPNCCs. The bactericidal effects on the different compositions of silver nanoparticles (AgNPs) of antibacterial SPS/SPNCCs films at 3 wt% compositions were in an average 2.80 ± 1.0 mm for Escherichia coli, 0.5 ± 1.0 mm for Staphylococcus aureus and 2.5 ± 1.0 mm for Salmonella cholerasuis. The nanoparticles and microbes size of the films by FE-SEM had an average in between 58.7±5.87-122.0±24.69nm and 1.29±0.37-3.16± 0.05mm, respectively. The encapsulation/coating of films with positive (+ve) and negative (-ve) bacterial resulted in bacterial death, decomposed and reduced in colonies number. The cells diameter and density shows decreasing with increasing in length of bacterial. The 3 wt% shows better maintained on the nanoparticles size, microstructure and bacterial colonies on the antibacterial SPS/SPNCCs films with different compositions. Thus, it was possible to develop and characterize the antibacterial SPS/SPNCCs films based on sago starch with containing active ingredients, which replacing synthetic polymer.

Keywords: Antibacterial, SPS/SPNCCs, AgNPs, bactericidal activity and mechanical properties. __________________________________________________________________________

ARTICLE INFO Received 15th November 2018 Received in revised form 9th December 2018 Accepted 10th December 2018 *Corresponding author: Dr. Che Nor Aiza Jaafar Tel: +0389464379 e mail: cnaiza@upm.edu.my Copyright Malaysian Journal of Microscopy (2018). All rights reserved. ISSN: 1823-7010 eISSN 2600-7444

Published
2018-12-31
Section
Original Research Articles