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自从甘薯传入日本以来,作为专门的救荒作物,已经多次拯救人们摆脱了饥饿。天保年间,关东地区开始小规模生产甘薯淀粉,并逐渐地扩展到关西和九州,作为淀粉原料,取代了马铃薯。甘薯淀粉的生产,对南洋诸岛进口木芋和西米淀粉以及朝鲜淀粉价格和生产量产生了重大影响。在第二次世界大战及以后的一段时间
Since the introduction of sweet potato into Japan, as a special savage crop, it has repeatedly saved people from hunger. During the course of Tianbao, small-scale production of sweet potato starch began in the Kanto region and gradually expanded to Kansai and Kyushu as raw materials for starch to replace potatoes. The production of sweet potato starch has had a significant impact on the importation of Taro and Sago starch by the South Seas and the North Korean starch price and production volume. During the Second World War and some time later