Modifikasi Fisik Tepung Ubi Jalar dan Aplikasinya dalam Pengembangan Produk Bihun
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Diabetes mellitus is a degenerative disease that can be prevented by adjusting the diet either by consume low glycemic index food. Heat moisture treatment-cooling is a process that can reduce the glycemic index of a food products. The aims of this research are to determine sweet potatoes suitability for sweet potato bihon production and to see the effect of heat moisture treatment-cooling for reducing glycemic index of sweet potato bihon. Three varieties of sweet potatoes are used, i.e. Ayamurasaki, Beta-1, and Sawentar. Modification is conducted by heat moisture treatment-cooling two cycles with temperature of heating (121oC) and temperature of cooling 4 °C. Bihon was made by a single screw extruder with die diameter of 0.6 mm and temperature of 92oC. Analysis were conducted on the chemical, physical, functional and organoleptic properties. Ayamurasaki varieties is selected products based on organoleptic and physical properties testing. Glycemic index of native and modified Ayamurasaki bihon are 57.2 and 50.7 respectively.