Starch, a white powder consisting of numerous α-glucose units joined by glycosidic bonds, is produced by plants for energy storage. Due to its low cost, wide availability and biodegradability, starch has been among the most widely produced bioplastics with over 400,000 metric tons produced annually today. However, starch in its pure form is difficult to process, requiring water or plasticizers to enable it to be processed into thermoplastic starch (TPS). In addition, TPS is hydrophilic and has inferior mechanical and barrier properties. As a result, starch is mainly used in blends with other polymers or reinforced with fibers. Most recent studies have focused on improving the mechanical strength of starch or its blends using various reinforcing fillers or fibers and other additives. Zhou et al. studied sisal fiber-reinforced thermoplastic starch and found that the interfacial adhesion between the fibers and starch matrix was improved by the addition of glutaraldehyde and starch nanocrystals. Suan et al. added beeswax to starch to achieve improved mechanical properties, moisture barrier and water resistance. Bakar et. al. used photo-crosslinking to enhance the strength of starch films filled with microcrystalline cellulose. Schreurs et al. reported the use of biochar particles as filler for starch/PLA blends.