整合生物学期刊网

应用天然产物 ›› 2019, Vol. 9 ›› Issue (5): 329-336.DOI: 10.1007/s13659-019-00219-y

• ORIGINAL ARTICLES • 上一篇    下一篇

Phenolic Constituents with Antioxidative, Tyrosinase Inhibitory and Anti-aging Activities from Dendrobium loddigesii Rolfe

Rui-Jing Ma1,2, Liu Yang1,3, Xue Bai1, Jin-Yu Li1, Ming-Yan Yuan1,3, Ya-Qin Wang3, Yong Xie3, Jiang-Miao Hu1,3, Jun Zhou1   

  1. 1 State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China;
    2 College of Pharmacy, Guilin Medical University, Guilin 541004, People's Republic of China;
    3 R&D Center of Dr. Plant, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
  • 收稿日期:2019-06-10 修回日期:2019-09-15 出版日期:2019-10-24 发布日期:2019-10-30
  • 通讯作者: Jiang-Miao Hu
  • 基金资助:
    This project was supported financially by the Yunnan Provincial Science and Technology Department (Nos. 2017ZF003-04, 2015HB093 and 2019HA001). Authors are grateful to the staff of the analytical group of the State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, for measurements of all spectra.

Phenolic Constituents with Antioxidative, Tyrosinase Inhibitory and Anti-aging Activities from Dendrobium loddigesii Rolfe

Rui-Jing Ma1,2, Liu Yang1,3, Xue Bai1, Jin-Yu Li1, Ming-Yan Yuan1,3, Ya-Qin Wang3, Yong Xie3, Jiang-Miao Hu1,3, Jun Zhou1   

  1. 1 State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China;
    2 College of Pharmacy, Guilin Medical University, Guilin 541004, People's Republic of China;
    3 R&D Center of Dr. Plant, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
  • Received:2019-06-10 Revised:2019-09-15 Online:2019-10-24 Published:2019-10-30
  • Contact: Jiang-Miao Hu
  • Supported by:
    This project was supported financially by the Yunnan Provincial Science and Technology Department (Nos. 2017ZF003-04, 2015HB093 and 2019HA001). Authors are grateful to the staff of the analytical group of the State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, for measurements of all spectra.

摘要: Aqueous ethanol extracts of powdered stems of Dendrobium loddigesii afforded three new phenolics including threo-7-O-ethyl-9-O-(4-hydroxyphenyl)propionyl-guaiacylglycerol (1), (R)-4,5,4'-trihydroxy-3,3',α-trimethoxybibenzyl (2) and (S)-5,5',7-trihydroxy-3',4'-dimethoxyflavanone (3), together with eleven known analogues. Their structures were determined by extensive spectroscopic analysis. To identify natural antioxidants, whitening, and anti-aging agents, the abilities of these phenolics were assessed to scavenge the 1,2-diphenyl-2-picrylhydrazyl (DPPH) radical, their abilities to inhibit tyrosinase production, and their abilities to stimulate collagen production by human dermal fibroblasts-adult (HDFa) assay. It was found that compounds 1, 4-8, 13 and 14 exhibited significant DPPH radical scavenging activities, compound 10 exhibited tyrosinase inhibitory activity (IC50 37.904 μg/mL), and compound 9 showed significant collagen production with an EC50 value of 3.182 μg/mL. These results suggest that phenolic constituents from D. loddigesii may be candidate antioxidants, skin-whitening and/or anti-aging agents.

关键词: Dendrobium loddigesii, Phenolic constituents, Antioxidative, Tyrosinase inhibitory, Anti-aging

Abstract: Aqueous ethanol extracts of powdered stems of Dendrobium loddigesii afforded three new phenolics including threo-7-O-ethyl-9-O-(4-hydroxyphenyl)propionyl-guaiacylglycerol (1), (R)-4,5,4'-trihydroxy-3,3',α-trimethoxybibenzyl (2) and (S)-5,5',7-trihydroxy-3',4'-dimethoxyflavanone (3), together with eleven known analogues. Their structures were determined by extensive spectroscopic analysis. To identify natural antioxidants, whitening, and anti-aging agents, the abilities of these phenolics were assessed to scavenge the 1,2-diphenyl-2-picrylhydrazyl (DPPH) radical, their abilities to inhibit tyrosinase production, and their abilities to stimulate collagen production by human dermal fibroblasts-adult (HDFa) assay. It was found that compounds 1, 4-8, 13 and 14 exhibited significant DPPH radical scavenging activities, compound 10 exhibited tyrosinase inhibitory activity (IC50 37.904 μg/mL), and compound 9 showed significant collagen production with an EC50 value of 3.182 μg/mL. These results suggest that phenolic constituents from D. loddigesii may be candidate antioxidants, skin-whitening and/or anti-aging agents.

Key words: Dendrobium loddigesii, Phenolic constituents, Antioxidative, Tyrosinase inhibitory, Anti-aging