论文部分内容阅读
马铃薯俗称土豆。它是世界上四大种植作物之一。西方人把它视作“第二面包”。顾名思意,它不仅是西方人的主食之一,而且它含有丰富的营养。首先,马铃薯中富含蛋白质和氨基酸。据测定,马铃薯鲜薯中蛋白质含量一般为2%左右,高蛋白品种蛋白质含量可达2.7%,而且其蛋白质的质量与动物蛋白相近,可与鸡蛋媲美,可消化成分高,能很好地为人体所吸收。薯块中含有18种氨基酸,其中包括人体必需的各种氨基酸。第二,马铃薯中富含各种矿物质元素。一般每500g鲜薯中含钾5.3mg、钙48mg、磷260mg、铁4.0mg。此外,还含有镁、硫、硼、钠、锰、锌、铜等多种元素。上述这些元素的总量占马铃薯块茎总干重的4.4%左右。这一含量高于除黄豆、黑豆以外的其他
Potatoes are commonly known as potatoes. It is one of the four largest crops in the world. Westerners think of it as “second bread.” As its name implies, it is not only one of Westerners staple food, but it is rich in nutrients. First, potato is rich in protein and amino acids. It is determined that the potato fresh potato protein content is generally about 2%, protein content of high-protein varieties up to 2.7%, and its protein quality and animal protein similar, comparable with eggs, digestible ingredients, can be very good Absorbed by the body. The potato contains 18 kinds of amino acids, including a variety of essential amino acids. Second, potatoes are rich in various mineral elements. General 500g of fresh potatoes containing potassium 5.3mg, calcium 48mg, phosphorus 260mg, iron 4.0mg. In addition, also contains magnesium, sulfur, boron, sodium, manganese, zinc, copper and other elements. The total amount of these elements accounted for about 4.4% of the total dry weight of potato tubers. This content is higher than other than soybeans, black beans