Extraction of starch from potato and vidarikand and its potential application in bioplastics

Abstract

The world's appetite for plastics is increasing by million tons every year. Alternative raw materials are needed in the polymer industry. Vidarikand is an extensive source of starch, having vast applications. Extraction of starch involves various methods such as grinding, incubation, screening, sedimentation, washing, and drying. The application of starch in polymers shows an incredible future for industries. To find the effect of different starch sources on the synthesis and biodegradation of polymers. The content of starch extracted through vidarikand was found to be 81.51%. The films of starch: PVA blend was prepared using ultrasound cavitation technique followed by solvent casting method. Meanwhile, the biodegradable plastic films were prepared using potato and starch extracted from vidarikand tuber. The casted films were subject to various characterization techniques (TGA, SEM, FTIR, mechanical properties, soil burial, and solubility test). Starch: PVA blends shows two decomposition position one is at 381 with second at 502°C with total weight loss of 79 and 98 %, respectively. PVA film of variable composition (starch from vidarikand) shows properties significantly more (soil burial-36.25%), solubility test-68.75%, elongation at break-34.3%, and tensile strength-6.92MPa) as compared to that of PVA film prepared using starch extracted from potato starch. Conclusion: The significant difference found in the degradation property of starch: PVA films from Vidarikand and potato starch. The prepared film of starch: PVA using starch extracted from vidarikarnd has significant applications in pharmaceuticals and packaging. The significant difference found in the degradation property of starch: PVA films from Vidarikand and potato starch. The prepared film of starch: PVA using starch extracted from vidarikarnd has significant applications in pharmaceuticals and packaging.