Planta Med 2009; 75(10): 1165-1167
DOI: 10.1055/s-0029-1185476
Natural Product Chemistry
Letter
© Georg Thieme Verlag KG Stuttgart · New York

Phenolic Compounds in the Leaves of Populus ussuriensis and their Antioxidant Activities

Chuan-Ling Si1 , 2 , Jin-Kyu Kim3 , Young-Soo Bae3 , Shu-Ming Li4
  • 1Tianjin Key Laboratory of Pulp & Paper, College of Material Science and Chemical Engineering, Tianjin University of Science and Technology, Tianjin, P. R. China
  • 2State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, P. R. China
  • 3Department of Wood Science and Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, Korea
  • 4Institut für Pharmazeutische Biologie, Philipps-Universität Marburg, Marburg, Germany
Further Information

Publication History

received November 12, 2008 revised February 8, 2009

accepted February 11, 2009

Publication Date:
18 March 2009 (online)

Abstract

Two new phenolic glucosides [isograndidentatin A (1) and isograndidentatin B (2)], 5 known phenolic glucosides [grandidentatin (3), salireposide (4), populoside (5), populoside A (6), and salicortin (7)], and 2 known phenolic acids [p-coumaric acid (8) and caffeic acid (9)] were isolated from the leaves of Populus ussuriensis. Structure elucidation of 1 and 2 was achieved through extensive spectroscopic techniques. Compounds 16 and 9 showed significant antioxidant activities, which were evaluated by the DPPH radical-scavenging method (IC50 values of 6.68, 6.61, 6.75, 6.84, 6.76, 6.79, and 5.92 µM, respectively) and the ABTS ·+ radical-scavenging system (TEAC values of 1.21, 1.28, 1.26, 1.05, 1.69, 1.60, and 2.00 mM, respectively).

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Prof. Dr. Chuan-Ling Si

Tianjin Key Laboratory of Pulp & Paper
College of Material Science and Chemical Engineering
Tianjin University of Science and Technology

300457 Tianjin

People's Republic of China

Phone: + 86 22 60 60 20 06

Fax: + 86 22 60 60 25 10

Email: sichli@tust.edu.cn