Abstract The environmental impact of petroleum-based plastics has driven the pursuit of sustainable alternatives such as bioplastics derived from renewable resources. Hence, this study explores the development of biodegradable bioplastics using starch extracted from locally available taro ( Alocasia macrorrhizos ) locally known as Borkosu and potatoes in northeastern part of India. The starches were extracted through wet milling and sedimentation techniques and combined with plasticizers such as