A method of manufacturing a biodegradable bioplastic includes preparing a plant derived polymer base, preparing bamboo extracts from bamboo wood, and combining the bamboo extracts with the polymer base, optionally by heating and mixing the polymer base in a liquid form together with the bamboo extracts in a liquid form. The bamboo extracts may be applied as a surface treatment of the polymer base, with the polymer base in a solid form. The plant derived polymer base may include water, potassium bicarbonate, glycerol and starch, such as arrowroot. The plant derived polymer base and the bamboo extracts may be combined at ambient temperature, heated, cooled, reheated and recooled and solidified.