[Esterase isoenzyme of various types in rhizoma Gastrodiae]

By means of polyacrylamide gel slab electrophoresis, the esterase isoenzyme of various types in Gastrodia elata in different growing periods was studied and the relativity and difference in physiology and biochemistry were discussed. The result reveals that apparent variety of Rhizoma Gastrodiae is not decided by genetic factors.