Starches from akaza-kazura (Boussingaultia baselloides), amerika-sato-imo (Xanthosoma sagittifolium) and syokuyo-kanna (Canna edulis)
1990
Fujimoto, S. (Kagoshima Univ. (Japan). Faculty of Agriculture) | Yamanaka, O. | Suganuma, T. | Nagahama, T.
Starch samples were prepared from the respective parts of the following three kinds of plants growing in Okinoerabu-islands: tuberous foot of Akaza-kazura. Boussingaultia baselloides H.B. et Kth. (Basellaceae), tuber of Amerika-sato-imo. Xanthosoma sagittifolium Schott (Araceae), and rhizome of Syokuyo-kanna, Canna edulis Ker. (Cannaceae), the yields being 10, 13 and 15%, respectively. These starches were examined concerning granular size and shape, phosphorus and protein contents, the X-ray diffraction pattern, iodine coloration, swelling power, solubility, amylogram, the digestibility of the raw starches by glucoamylase and other properties. Starch granules of Akaza-kazura had various shapes, being gelatinized easily, showing high viscosity on amylogram. Amerika-sato-imo starch was small in size with low content of amylose, but other properties of it resembled those of sweet potato starch, Syokuyo-kanna starch granules were very large in size, and had properties quite similar to those of Hana-kanna starch described in the previous paper
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