...皮素（Quercetin）、异槲皮苷（Isoquercitrin）、桑苷（槲皮素-3-三葡萄糖苷Moracetin-3-triglucoside）、黄芪黄酮（Astragalin）。
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结论蔗糖作为碳源最有利于黄芪愈伤组织生长和黄芪黄酮的生物合成。
Conclusion: Sucrose, selected as source of carbon is more favored for the callus growth and the synthesis of saponins than glucose and maltose are.
方法：采用连续回流提取法和超声波提取法提取膜荚黄芪叶中的皂苷、黄酮、多糖类成分，比色法测定其含量。
Methods Using continuum circumfluence and ultrasound to extract astragaloside, flavonoids and amylose from the leaves of astragalus and determine the quantity with colorimetry.
目的：比较黄芪药材主、侧根中黄酮类的含量。
Objective:To compare the contents of flavonoids in radix astragali tap root and lateral root.
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