Potato starch is the extracted starch from potatoes by crushing raw potatoes, which separates the starch grains from the destroyed cells. The starch is then cleaned and left to dry. Once dried, the potato starch forms a white, powdery, flour-like consistency.Applications of Potato Starch Food Industry – It is used as a thickener in a variety of recipes because it absorbs water effectively. Textile Industry – It is used in textile industry in finishing fabrics and starch fabrics. Pharmaceutical Industry – It is used in making antibiotics.