Open AccessEffect of Heating on Tensile Strength and Elongation at Break of Bioplastic from Taro Starch Filled Chitosan (Colocasia esculenta) with Glycerol Plasticizer
Author(s) -
Muhammad Hendra Sahputra Ginting,
Rosdanelli Hasibuan,
Maulida Lubis,
Toni Pahri Sirait,
T. Sidabudar
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.22878
Subject(s) - bioplastic , starch , elongation , glycerol , chemistry , ultimate tensile strength , plasticizer , amylopectin , chitosan , amylose , absorption of water , food science , polysaccharide , nuclear chemistry , chemical engineering , materials science , composite material , organic chemistry , waste management , engineering
Taro starch is a potential raw material for bioplastics by adding glycerol and chitosan. The castingmethod is used for making bioplastics with 30%w/v starch solution. Moreover, the variation addedvolume of glycerol (1%, 2% and 3% v/v), addition of chitosan (1% w/v, 2%w/v and 3%w/v) andpasting temperature was 75 ºC. Taro starch with particle size 100 mesh has 93.55% starch, 17.9%amylose, 75.66% amylopectin. Analysis of plastice properties showed that taro starch has a gelatinizationtemperature of 74.52 ºC with high peak viscosity 5953.5 cP. FTIR analysis show bands due to presenceof O-H, C-H, C=H, C-O-H and C-O. The best of bioplastic in this study was 30% w/v on starch, 1%v/v glycerol and 2% w/v chitosan at 75 ºC produces 42.86% water absorption, 8.297 MPa tensilestrength and elongation at break was 45.846%.