Xie Yinghua, Zheng Yunxia, Dai Xiling, Wang Quanxi, Cao Jianguo, Xiao Jianbo
Department of Biology, Shanghai Normal University, 100 Guilin Rd, Shanghai 200234, China.
Department of Biology, Shanghai Normal University, 100 Guilin Rd, Shanghai 200234, China.
Food Chem. 2015 Nov 1;186:113-8. doi: 10.1016/j.foodchem.2014.05.024. Epub 2014 May 15.
The seasonal dynamics of the total flavonoid contents in various parts of Dryopteris erythrosora, a traditional Chinese medicinal fern, and their antioxidant activity were investigated. The total flavonoids content in various parts of D. erythrosora showed an obvious seasonal dynamic change. The total flavonoid contents in stems (from 4.3% to 12.5%) were much higher than that in leaves with an average content of 2.01%. In spring, the total flavonoid contents in stems were relatively low, but increased rapidly from summer to winter. However, the seasonal dynamics of total flavonoid contents in leaves showed different model. The total flavonoid contents in the stems showed a negative correlation with that in the leaves from January to July. The correlation coefficient of about -0.7 was obtained. The antioxidant activity of the extracts also altered in proportion to the change of total flavonoid contents. In general, the extracts from stems always showed highest antioxidant potentials and it was suggested that the stems can be used as crude medicine.
对中国传统药用蕨类植物红盖鳞毛蕨各部位总黄酮含量的季节性动态及其抗氧化活性进行了研究。红盖鳞毛蕨各部位的总黄酮含量呈现出明显的季节性动态变化。茎中的总黄酮含量（从4.3%至12.5%）远高于叶，叶的平均含量为2.01%。春季，茎中的总黄酮含量相对较低，但从夏季到冬季迅速增加。然而，叶中总黄酮含量的季节性动态呈现不同模式。1月至7月，茎中的总黄酮含量与叶中的呈负相关。得到的相关系数约为-0.7。提取物的抗氧化活性也随总黄酮含量的变化成比例地改变。总体而言，茎的提取物始终表现出最高的抗氧化潜力，表明茎可作为药材使用。
