Studies on tuber starches. II. Molecular structure, composition and physicochemical properties of yam (Dioscorea sp.) starches grown in Sri Lanka

Starch from varieties of Dioscorea esculenta (Lour.) Burkill (kukulala, java-ala, nattala) and Dioscorea alata L. (hingurala, raja-ala) tubers grown in Sri Lanka was isolated and its morphology, composition, structure and physicochemical properties were studied. The yield of starch was in the range 12.2–18.0% on a whole tuber basis. The shape and size of D. esculenta and D. alata starch granules were round to polygonal (3–10μm) and spade shaped …