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Updated: Feb 22, 2026
Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues
Published on: March 9, 2021
[Lignans from barks of Ailanthus altissima]
Dong Liu1, Jian Zhang1, Shao-Nan Tang1
1Institute of Traditional Chinese Medicine（TCM） & Natural Products, Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China.
Abstract:
Eleven lignans were isolated from the ethanol extract of the barks of Ailanthus altissima through various column chromatography methods including silica gel, Sephadex LH-20, ODS and HPLC. By physical, chemical and comprehensive spectroscopic methods, their structures were identified as (+)-neoolivil(1), prunustosanan AI (2), (7S,8R)-guaiacyl-glycerol-β-O-4'-neolignan (3), (7R,8S)-guaiacyl-glycerol-β-O-4'-neolignan (4), (7S,8R)-1-(4-hydroxy-3-methoxyphenyl)-2-[4-(3-hydroxypropyl)-2,6-dimethoxyphenoxy]-1,3-propanediol(5), pinnatifidanin B V (6), pinnatifidanin B VI (7), (7R,7'R,7″S,8S,8'S,8″S)-4',4″-dihydroxy-3,3',3″,5-tetramethoxy-7,9':7',9-diepoxy-4,8″-oxy-8,8'-sesquineolignan-7″,9″-diol (8), hedyotol D (9), 5-(2-propenyl)-7-methoxy-2-(3,4-methylenediovxyphenyl)benzofuran (10), and (7R,8S,7'E)-guaiacyl-glycerol-β-O-4'-sinapyl ether(11).All of these compounds were isolated from this plant for the first time.
