A Study on the Seasonal Variation of the Contents of Flavonoid and Cholorogenic Acid in the Leaf of Acer truncatum
- Received Date: 2004-01-16
Abstract: The dynamic variation of the contents of flavonoid and cholorogenic acid in the leaf of Acer truncatum were studied. The result showed that the contents of flavonoid reached 5.73% as culmination point in August, while that of cholorogenic acid however reached 5.73% as culmination point in June. The leaf production reached 131 g per tree as culmination in August. It was the best time to harvest the leaf of A.truncatum in July and August.