淀粉在食品和制糖等许多工业中有广泛的用途.在过去石油危机的年代里,淀粉曾被作为有效的代用能源.由于世界天然油贮量不足,今后淀粉作为酒精原料的重要性将更为突出。在台湾,除水稻外,甘薯是淀粉的主要来源.它高产;块根富含淀粉,一年能种植3～4次。影响甘薯淀粉率的因素很多,如品种的不同,地点和年份,土壤和肥料等因 Starch has a wide range of uses in many industries, including food and sugar making. Starch was used as an effective alternative source of energy in the past during the oil crisis. The future importance of starch as an alcohol source will be further diminished by the world’s lack of natural oil reserves To highlight. In Taiwan, except for rice, sweet potato is the main source of starch, and it is high in yield. The roots are rich in starch and can be planted three or four times a year. Factors affecting the sweet potato starch rate many factors, such as the different species, location and year, soil and fertilizer due