甜菊(Rebaudiana),又名甜叶菊,属菊科斯台维亚属多年生宿根草本植物,是一种新兴的糖源作物,原产于南美洲,1979年自日本引入我国,全国各地均可栽培。利用其茎叶生产的甜菊糖甜度是庶糖的150～300倍,具有高甜度、低热能、易溶解、耐热性强、性质稳定等特点,广泛应用于食品、医药和日化工业中,具有较好的保健作用和经济价值。近年来,随着生活水平的提高,人们的保健意识逐渐增强,国际市场对甜菊糖的需求量不断上升,甜菊茎叶价格随之上扬,1996年干叶价 Rebaudiana, also known as Stevia, is a perennial perennial herb belonging to the genus Aspergillus. It is a new sugar source crop native to South America. It was introduced into our country from Japan in 1979 and can be cultivated throughout the country. The sweetness of stevia produced by using its stems and leaves is 150-300 times that of sucralose, and has the characteristics of high sweetness, low heat energy, easy dissolution, heat resistance and stable property, and is widely used in the fields of food, medicine and daily chemical industry , Has good health effects and economic value. In recent years, with the improvement of living standards, people’s awareness of health care gradually increased, the international market demand for stevioside rising stevia leaf stems and leaves prices rose, in 1996 dry leaf price