Zhang Lizhen, Wang Chu, Meng Qiuxia, Tian Qin, Niu Yu, Niu Wei
School of Life Science, Shanxi University, Taiyuan 030006, China.
Institute of Agricultural Environment and Resources, Shanxi Academy of Agricultural Sciences, Taiyuan 030006, China.
Molecules. 2017 Aug 18;22(8):1335. doi: 10.3390/molecules22081335.
The objectives of this study were to characterize the antioxidant capacities and phytochemicals such as phenolics and flavonoids in four parts of L. HPLC was employed to detect the type and content of phenolic acids and flavonoids in the root, stem, seed, and testa of the plant. The total phenolic content (TPC) and total flavonoid content (TFC) were different among various parts of . The highest TPC were found in the testa (290.46 ± 15.09 mg of gallic acid equiv/100 g dry weight (DW)). However, the root contained the highest TFC (215.68 ± 3.10 mg of rutin equiv/g DW). Of the different antioxidant activities detected, DPPH free radical scavenging activity was highest in the testa (61.29 ± 0.29 mmol Trolox/100 g DW), but the highest FRAP antioxidant activity was found in the seed (1131.25 ± 58.68 mg FeSO₄/100 g DW of free compounds and 1927.43 ± 52.13 mg FeSO₄/100 g DW of bound compounds). There was a positive correlation between the total phenolic contents and DPPH free radical scavenging activity in different parts of .
本研究的目的是表征某植物四个部位的抗氧化能力以及酚类和黄酮类等植物化学物质。采用高效液相色谱法检测该植物根、茎、种子和种皮中酚酸和黄酮类的类型及含量。该植物不同部位的总酚含量（TPC）和总黄酮含量（TFC）各不相同。种皮中的TPC最高（290.46±15.09毫克没食子酸当量/100克干重（DW））。然而，根部的TFC最高（215.68±3.10毫克芦丁当量/克DW）。在所检测的不同抗氧化活性中，种皮的DPPH自由基清除活性最高（61.29±0.29毫摩尔Trolox/100克DW），但种子的FRAP抗氧化活性最高（游离化合物为1131.25±58.68毫克硫酸亚铁/100克DW，结合化合物为1927.43±52.13毫克硫酸亚铁/100克DW）。该植物不同部位的总酚含量与DPPH自由基清除活性之间存在正相关。
