四产地元宝枫种皮酚类资源及其抗氧化分析

【目的】元宝枫是我国的特色多用途优良树种,元宝枫种皮更是优质的可再生植物资源,研究发现元宝枫种皮中富含优质植物酚类资源,是人类健康和化工产业的优质原料,研究前景广阔。本研究的目的是对4个元宝枫产地元宝枫种皮中的酚类资源及其抗氧化活性进行分析比较和系统评价。【方法】以北京、内蒙古科尔沁、山东济宁、山东泰安4个元宝枫产地的元宝枫种皮为试材,采用我们所改良的基于96孔板酶标仪的酚类-抗氧化系统评价体系对元宝枫种皮中的酚类、黄酮类、酚酸类、单宁类和缩合单宁类代谢物的含量变化进行评价,并对其抗氧化活性的改变进行定量分析。【结果】产自山东省济宁和泰安的元宝枫种皮的酚类、黄酮类、酚酸类、单宁类和缩合单宁类代谢物的含量均显著高于北京和内蒙古科尔沁的;产自山东省济宁和泰安的元宝枫种皮的抗氧化活性显著优于北京和内蒙古科尔沁的;对于山东省济宁和泰安两个元宝枫产地的元宝枫种皮的品质进行综合分析,发现济宁优于泰安。【结论】山东省两个重要元宝枫产地元宝枫种皮酚类资源和抗氧化活性的品质均优,而两者相比,济宁为山东省元宝枫种皮的更佳产地。本研究对我国元宝枫树种及其酚类资源的综合利用和资源挖掘具有一定的科学指导价值,建...

Evaluation of phenolic resources and its antioxidant abilities for seed coats of Acer truncatum from four producing areas

  Objective  Acer truncatum is a characteristic high-quality tree species with multi-purpose in China. A. truncatum seed coats are excellent renewable plant resources and good raw materials for human health and chemical industries owing to their abundant high-quality plant phenolic resources. This study aims to compare and systematically evaluate plant phenolic resources and antioxidant activities for A. truncatum seed coats collected from four producing areas of A. truncatum.   Method  Using A. truncatum seed coats from Beijing, Horqin in Inner Mongolia of northern China, and Jining and Taian in Shandong Province of eastern China as test materials, contents of phenols, flavonoids, phenolic acids, tannins and condensed tannins, and antioxidant activities for A. truncatum seed coats were evaluated by our improved phenol-antioxidant system based on 96-well plates.   Result  Contents of phenols, flavonoids, phenolic acids, tannins and condensed tannins in A. truncatum seed coats from Jining and Taian were significantly higher than those from Beijing and Horqin. Antioxidant activities of A. truncatum seed coats from Jining and Taian were significantly better than those from Beijing and Horqin. Comprehensive analysis showed that qualities for A. truncatum seed coats from Jining were superior to those from Taian.   Conclusion  Phenolic resources and antioxidant activities of A. truncatum seed coats from Jining and Taian were better than those from Beijing and Horqin. Furthermore, qualities of A. truncatum seed coats from Jining were better than Taian. Our findings provide insights into the comprehensive utilization and resource mining of A. truncatum and its phenolic resources in China, and it is recommended that A. truncatum seed coats from Shandong Province should be further focused and studied.