Degradation Study of Biodegradable Plastic Using Nata De Coco as A Filler

Abstract

Starch is known as a biodegradable raw material that can be degraded by bacteria and microorganisms in the soil. Starch has cellulose which is kind of plant cellulose. This study shows the biodegradation rates of plastic made from Ganyong Canna (Canna edulis Kerr) as a cellulose source which is added with nata de coco as a filler. The biodegradable plastic functional group was confirmed by using FITR. The results show that the O-H group of Ganyong Canna (Canna edulis Kerr) biodegradable plastic is located at wave number 3298.03 cm-1 and shifted to 3290.32 cm-1 after addition of nata de coco. The C-H bonds functional groups in Canna biodegradable plastics and nata de coco plastics are at wave numbers 2920.01 cm-1 and 2916.16 cm-1. While the C-O bonds functional groups in biodegradable starch plastics and nata de coco is shown at wave numbers 995.05 cm-1. The mechanical properties of biodegradable plastics testing are thickness, tensile strength, and elongation based on the ASTM method. The thickness is about 0.1005 mm, the tensile strength of biodegradable plastic is 4,3244 MPa and the elongation value range about 13.9639% while the WVTR range about 14.20 g/m² hours. The results show that the increase of the plastic degradation made from nata de coco occurs between 5% - 38% per days. It is faster than the plastic made from pure Ganyong Canna (Canna edulis Kerr) starch. These results indicate that nata de coco could be added in biodegradable plastic on packaging materials for better degradation.

Mechanical and Barrier Properties of Biocellulose Nata de Coco-Based Edible Film: Influence of Purple Yam (Dioscorea alata) Flour and Glycerol Concentration

“…Biocellulose has high crystallinity and regularity, so its structure does not dissolve in water; therefore it is necessary to modify it with other materials like a composite so that it matches the characteristics of edible film. [7] investigated the use of dried NDC as a filler in cellulose-canna starch biodegradable plastic, this study focused on wet NDC and added are yam flour (Dioscorea alata).…”

Synthesis of Bio-Cellulose Acetate Membrane From Coconut Juice Residues for Carbon Dioxide Removal From Biogas in Membrane Unit

“…Many factors affect the properties of the obtained CA involved in the bioprocess using A. xylinum, including cultivating temperature, pH, cultivation duration, glucose quantity (% Brix), and also the type or source of the substrate (Khami et al, 2019). Several research studies have shown that both CA and bio-CA membranes are generally recognized as biodegradable materials (Rivard et al, 1992, Gu et al, 1993, Gardner et al, 1994, Elfiana et al, 2018. The biodegradation rate of bio-CA made from nata de coco was 5-28% per day (Elfiana et al, 2018).…”

“…Several research studies have shown that both CA and bio-CA membranes are generally recognized as biodegradable materials (Rivard et al, 1992, Gu et al, 1993, Gardner et al, 1994, Elfiana et al, 2018. The biodegradation rate of bio-CA made from nata de coco was 5-28% per day (Elfiana et al, 2018). Whereas, under the enrichment culture, the CA film was able to degrade, 67% weight loss, within 2-3 weeks (Buchanan et al, 1993).…”