Total Phenolic Compounds, Carotenoids and <i>In Vitro</i>Antioxidant Activity of Three Traditional Indigenous Medicinal Plants of Saskatchewan, Canada  

作　　者：Matheus Antonio Filiol Belin Fidji Gendron Stephen Cheng Vincent Ziffle Matheus Antonio Filiol Belin;Fidji Gendron;Stephen Cheng;Vincent Ziffle(Department of Chemical and Biological Sciences, Sao Paulo State University, Sao Paulo, Brazil;Indigenous Knowledge and Science Program, First Nations University of Canada, Saskatchewan, Canada;Department of Chemistry and Biochemistry, University of Regina, Saskatchewan, Canada)

机构地区：[1]Department of Chemical and Biological Sciences, Sao Paulo State University, Sao Paulo, Brazil [2]Indigenous Knowledge and Science Program, First Nations University of Canada, Saskatchewan, Canada [3]Department of Chemistry and Biochemistry, University of Regina, Saskatchewan, Canada

出　　处：《American Journal of Plant Sciences》2021年第8期1197-1209,共13页美国植物学期刊（英文）

摘　　要：Medicinal plants are an important component in Indigenous cultures. <i>Aralia</i><span> <i>nudicaulis</i></span> L., <i>Rubus</i><span> <i>idaeus</i></span> L., and <i>Rosa</i><span> <i>arkansana</i></span> Porter were analyzed for total phenolic compounds, carotenoids and antioxidant activity by DPPH (2,2-diphenyl-1-picrylhydrazyl), FRAP (ferric-reducing antioxidant power), and ABTS (2,2-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid). The samples were harvested in Saskatchewan, Canada, with the help of an Indigenous Traditional Knowledge Keeper and the analyses were performed by spectrophotometry. The results showed that total phenolic compounds amount ranged from 0.08 to 0.88 mg GAE/mg d.w. and the total carotenoid contents ranged from 0.03 to 1.26 mg/g d.w. The <i>in</i><span> <i>vitro</i> </span>antioxidant activity ranged from 0.02 to 0.71 μmol TE/mg d.w. by DPPH, from 0.05 to 2.53 μmol TE/mg d.w. by FRAP, and from 0.04 to 1.06 μmol TE/mg d.w. by ABTS. <i>Rosa</i><span> <i>arkansana</i></span> leaves stood out with higher amounts of total phenolic compounds (TPC) (0.88 ± 0.02 mg GAE/g d.w.), carotenoids (TC) (1.26 ± 0.03 mg/g d.w.) and antioxidant activity (TAA) by DPPH (0.71 ± 0.01 μmol TE/mg d.w.), ABTS (1.06 ± 0.01 μmol TE/mg d.w.) and FRAP (2.32 ± 0.01 μmol TE/mg d.w.), with the same amount of <i>Rubus</i><span> <i>idaeus</i></span> belowground (2.53 ± 0.01 μmol TE/mg d.w.) in last technique (2.32 ± 0.01 μmol TE/mg d.w.). The first principal component describes 83.88% of the total variance and all the variables have high influence on this component (factor loadings: T = 0.976, TC = 0.735, TAA by DPPH = 0.955, FRAP = 0.894 and ABTS = 0.996), demonstrating that these samples do not have large dissimilarity. The second principal component represents 13.64% of the total variance, and the TC is the dominant variable on the second principal component (0.658). <i>Aralia</i><span> <i>nudicaulis</i></span>, <i>Rubus</i><span> <i>idaeus</i></span>, and <i>Rosa</i><span> <i>arkansana</i></span> Medicinal plants are an important component in Indigenous cultures. <i>Aralia</i><span> <i>nudicaulis</i></span> L., <i>Rubus</i><span> <i>idaeus</i></span> L., and <i>Rosa</i><span> <i>arkansana</i></span> Porter were analyzed for total phenolic compounds, carotenoids and antioxidant activity by DPPH (2,2-diphenyl-1-picrylhydrazyl), FRAP (ferric-reducing antioxidant power), and ABTS (2,2-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid). The samples were harvested in Saskatchewan, Canada, with the help of an Indigenous Traditional Knowledge Keeper and the analyses were performed by spectrophotometry. The results showed that total phenolic compounds amount ranged from 0.08 to 0.88 mg GAE/mg d.w. and the total carotenoid contents ranged from 0.03 to 1.26 mg/g d.w. The <i>in</i><span> <i>vitro</i> </span>antioxidant activity ranged from 0.02 to 0.71 μmol TE/mg d.w. by DPPH, from 0.05 to 2.53 μmol TE/mg d.w. by FRAP, and from 0.04 to 1.06 μmol TE/mg d.w. by ABTS. <i>Rosa</i><span> <i>arkansana</i></span> leaves stood out with higher amounts of total phenolic compounds (TPC) (0.88 ± 0.02 mg GAE/g d.w.), carotenoids (TC) (1.26 ± 0.03 mg/g d.w.) and antioxidant activity (TAA) by DPPH (0.71 ± 0.01 μmol TE/mg d.w.), ABTS (1.06 ± 0.01 μmol TE/mg d.w.) and FRAP (2.32 ± 0.01 μmol TE/mg d.w.), with the same amount of <i>Rubus</i><span> <i>idaeus</i></span> belowground (2.53 ± 0.01 μmol TE/mg d.w.) in last technique (2.32 ± 0.01 μmol TE/mg d.w.). The first principal component describes 83.88% of the total variance and all the variables have high influence on this component (factor loadings: T = 0.976, TC = 0.735, TAA by DPPH = 0.955, FRAP = 0.894 and ABTS = 0.996), demonstrating that these samples do not have large dissimilarity. The second principal component represents 13.64% of the total variance, and the TC is the dominant variable on the second principal component (0.658). <i>Aralia</i><span> <i>nudicaulis</i></span>, <i>Rubus</i><span> <i>idaeus</i></span>, and <i>Rosa</i><span> <i>arkansana</i></span>

关 键 词：Aralia nudicaulis L. Rubus idaeus L. Rosa arkansana Porter DPPH FRAP ABTS 

分 类 号：R28[医药卫生—中药学]