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马铃薯是一种遍布世界各地的高产作物。在它那硕大丰满的块茎中含有多种丰富的营养物质而受人们的欢迎。据测定(按鲜重计),块茎中含有75%的水分,其余为干物质。在干物质中有碳水化合物、脂肪、蛋白质、维生素、有机酸和矿物质,这些都是人体进行正常生命活动所必需的物质。因此,毫不夸张地说,马铃薯块茎营养丰富,是人类不可缺少的食品之一。碳水化合物作为马铃薯块茎中的贮藏物质,绝大部分是碳水化合物,它包括淀粉和糖类。淀粉占薯块鲜重20%左右,而糖类约占1%。在生育期内,叶片制造的光合产物源源不断地运至块茎,并且经过生化变化,
Potato is a high-yield crop found all over the world. Popular in its huge plump tuber contains a variety of rich nutrients. It is measured (by weight), tubers contain 75% of the water, the rest is dry matter. There are carbohydrates, fats, proteins, vitamins, organic acids and minerals in the dry matter, which are all essential to the body’s normal life activities. Therefore, it is no exaggeration to say that potato tubers are rich in nutrients and are one of the indispensable foods for human beings. Carbohydrates, as storage substances in potato tubers, are mostly carbohydrates and include starches and sugars. About 20% of fresh weight of potato starch, while about 1% of sugar. During the growth period, photosynthetic products made by the leaves continuously transported to the tubers, and after biochemical changes,