Lv Da, Si Jin-ping, Tong Zai-kang, Guo Bao-lin, Jiang Yan-feng, Zhu Yu-qiu
Centre For Research and Development of Natural Medicines of Zhejiang Forestry College, Lin'an 311300, China.
Zhongguo Zhong Yao Za Zhi. 2008 Sep;33(17):2087-9.
To reveal the relationship between the storage time of the bark of Magnolia officinalis and the content of phenols in it, and lay a theoretical foundation for the harvest, processing, management and storage.
The contents of magnolol and honokoiol in 15 bark samples, collected from the main producing areas in China, were determined in the time of freshly harvest and 3 and 10 years after respectively by HPLC method.
It showed that within a certain period of time, bark storage was favorable to conversion and accumulation of phenols, that the content of magnolol tended to increase from year 0 to year 3, then followed by slight decrease with years on account of volatilization of phenols, but was still higher when the bark was stored for 10 years than that that when the bark was freshly harvested, and the content of honokoiol still tended to increase when the bark had been stored for 10 years.
The phenols in bark of M. officinalis is quite stable and the bark can be stored for 10 years or longer.
揭示厚朴树皮的储存时间与其所含酚类物质含量之间的关系，为厚朴的采收、加工、管理及储存奠定理论基础。
采用高效液相色谱法，分别测定从中国主要产区采集的15份树皮样品在刚采收时、采收后3年及10年时厚朴酚与和厚朴酚的含量。
结果表明，在一定时间内，树皮储存有利于酚类物质的转化和积累，厚朴酚含量从第0年到第3年呈上升趋势，之后由于酚类物质挥发略有下降，但储存10年时仍高于刚采收时，和厚朴酚含量在储存10年时仍呈上升趋势。
厚朴树皮中的酚类物质相当稳定，树皮可储存10年或更长时间。
