The content of liriodendrin in the xylem part was 3 times of that in the stem bark, and that in the center part was the lowest. 木质部中紫丁香树脂苷含量约是茎皮的3倍,髓部含量最低。
The content of liriodendrin in the root bark of A. giraldii Harms was higher than that in the stem bark. 红毛五加根皮中紫丁香树脂苷含量高于茎皮。
Cutting the stem of A. giraldii Harms into stem bark, xylem and center three parts and determining, it was found that there was a great difference in the contents of liriodendrin in the three parts. 通过将红毛五加的茎皮、木质部、髓部剥离,分别测定,发现这三部分中紫丁香树脂苷的含量有很大差异。