STA046 - NanoSOY Biofilm for Packaging Application
NanoSOY biofilm was derived from cellulose nanocrystals (CNCs) reinforced polyethylene gylcol (PEG)-starch matrix. CNCs was extracted from soy waste (SW) including its hull and beans residue that produced from food industry. Abundant of SW has been produced from food industry. This phenomena had created environmental pollution. Apart from that, SW created from food industry had no commercial value rather than used as feedstock for cattle in the farm. An attempt has been made to recycle the SW and converted it to valuable product. Extraction of CNCs from SW was done by acid hydrolysis with 60% of Sulfuric Acid (H2SO4). According to FTIR result, hemicellulose and lignin were successfully removed due to the decreasing of peaks at 1745.8 cm-1 and 1638.4 cm-1. As a result, suspension of CNCs was obtained. Nanocomposite films from PEG-starch were successfully prepared by reinforcing with CNCs with different composition ( 0%, 20%, 40% and 60% ). Thermal properties of the films were characterized by using DSC. From DSC result, it can be concluded that the value of Tg and Tm does not show much changes but the crystallinity of the nanocomposite film increase as the CNCs loading increased. UV-vis result exhibit the increasing of transparency of the nanocomposite films when amount of CNCs in the film increased. Moisture uptake test revealed that the increasing amount of CNCs reduced the percentage of moisture uptake of the films. In future, this biofilm has a potential as packaging application.
NanoSOY biofilm was derived from cellulose nanocrystals (CNCs) reinforced polyethylene gylcol (PEG)-starch matrix. CNCs was extracted from soy waste (SW) including its hull and beans residue that produced from food industry. Abundant of SW has been produced from food industry. This phenomena had created environmental pollution. Apart from that, SW created from food industry had no commercial value rather than used as feedstock for cattle in the farm. An attempt has been made to recycle the SW and converted it to valuable product. Extraction of CNCs from SW was done by acid hydrolysis with 60% of Sulfuric Acid (H2SO4). According to FTIR result, hemicellulose and lignin were successfully removed due to the decreasing of peaks at 1745.8 cm-1 and 1638.4 cm-1. As a result, suspension of CNCs was obtained. Nanocomposite films from PEG-starch were successfully prepared by reinforcing with CNCs with different composition ( 0%, 20%, 40% and 60% ). Thermal properties of the films were characterized by using DSC. From DSC result, it can be concluded that the value of Tg and Tm does not show much changes but the crystallinity of the nanocomposite film increase as the CNCs loading increased. UV-vis result exhibit the increasing of transparency of the nanocomposite films when amount of CNCs in the film increased. Moisture uptake test revealed that the increasing amount of CNCs reduced the percentage of moisture uptake of the films. In future, this biofilm has a potential as packaging application.