Mechanical and Optical Characterization of Bio-nanocomposite from Pineapple Leaf Fiber Material for Food Packaging

Abstract

The utilization of Bio-nanocomposite material that was deri\'ed from pineapple leaf fiber as fill er and tapioca starch with plasticizer glycerol as a matrix for food packaging can reduce the use of plastic that usually was made from petroleum materials. It is important to dewlop and producethis environmental friendly plastic because of limited a\'ailability of petroleum nowadays. The process of synthesize and characterization tapioca starch with the plasticizer glycerol bionanocomposites using print method had been conducted. There were 3 samples with different filler concentration \'ariation; 3%. 4% and 5%.The results of mechanical test from each sample showed that bio-nanocomposite with 5% filler concentration was the optimum san1ple with 4 .6320 MPa for tensile strength test and 24.87% for the elongation test. Based on the result of optical test for each sample was gained that along with the increasing of concentration filler would make the absorbance rnlue of the sample became decreased, bio-nanocomposite with 5% filler concentration had several peaks with low absorbance values. The first peak was in 253 nm of wavelength regionwith absorbance of 0.131%, and the second peak was in 343 nmwavelength region and absorbance was 0.087%.