Any of various perennial herbs of the genus Solanum, having edible tubers. They are the fourth most important food crops in the world, second only to wheat, rice and maize. Eggs, potatoes, potato and taro Yangshan, Solanaceae plant. With wheat, rice, corn, sorghum, and become the world's five largest crop. Potato originated in the Andes mountains of South America, the earliest history of artificial cultivation can be traced back about 8000 BC to 5000 years in southern Peru region. Potato production mainly state-owned China, Russia, India, Ukraine, the United States and so on. China is the largest producer of potatoes in the world.
Ingredients contained in fresh potatoes: starch 9 ~ 20%, protein 1.5 ~ 2.3%, fat 0.1 ~ 1.1%, crude fiber 0.6 ~ 0.8%. The nutritional ingredients of 100g in potato: energy 318 thousand coke, calcium phosphorus 5 ~ 8mg, 15 ~ 40mg, 0.4mg ~ 0.8mg 200~340mg iron, potassium, iodine 0.8~1.2, 12~30mg carotene, thiamin riboflavin 0.03 ~ 0.08mg, 0.01 ~ 0.04mg, 0.4 ~ 1.1mg niacin.