番薯叶。番薯叶原是养猪的主要饲料,旧社会穷人用来充饥的食物,如今成为时尚食品。番薯叶有20多个品种,其中绿色番薯叶的营养价值最高,食用300克的番薯叶,就能满足人体一天对维生素A、C、E和铁的需要。番薯叶并含有抗癌性的绿原酸及衍生物,具有抗氧化的能力。为了供应市场需求,郊区农民种植改良的番薯。多长茂 Sweet potato leaves. Sweet potato leaf is the main feed for pigs, the food used to feed the poor of the old society, and now become a fashion food. There are more than 20 varieties of sweet potato leaves, of which the highest nutritional value of green sweet potato leaves, eating 300 grams of sweet potato leaves, the body can meet the day of vitamin A, C, E and iron needs. Sweet potato leaves and contains anti-cancer chlorogenic acid and derivatives, with antioxidant capacity. In order to supply the market demand, suburban farmers planted sweet potatoes. How long Mao