洋葱在西欧国家被誉为蔬菜“皇后”,其营养保健作用正受到人们的日益重视。有关科学家研究后认为,洋葱是目前所知唯一含有前列腺素 A 的蔬菜,这种前列腺素 A 具有舒张血管、降低血压和血液的粘稠度、防止血栓形成、增加冠状动脉血流量的作 Onions in Western European countries known as the vegetable “queen”, its nutrition and health effects are increasingly people’s attention. Researchers believe that the onion is the only known vegetable containing prostaglandin A, this prostaglandin A with vasodilatation, lower blood pressure and blood viscosity, prevent thrombosis, increase coronary blood flow for