柳杉木材边材木醋液中的成分研究(英文)

Components in Wood-vinegar of Sugi (Cryptomeria Japonica D.Don) Sapwood

用毛细管气相色谱法对日本柳杉木材边材炭化得到的木醋液中的37种成分进行定性和定量分析。结果表明,醇类、酮类、羧酸类、呋喃类、苯酚类及愈创苯酚类是其主要成分。用溶剂萃取-硅胶柱层析法进一步分离处理木醋液,纯化出炭化过程中产生的手性脱水内醚糖-左旋葡聚糖(LGA,1,6-脱水-β-D-葡萄糖),但其不能被毛细管气相色谱法检测出。从150 mL木醋液中可分离纯化出60.5 mg LGA。另外,对木醋液中主要成分的生成路线也进行了分析和讨论。

Thirty-seven components in wood-vinegar obtained from the carbonization of sugi sapwood were determined by capillary gas chromatography（GC）.The results showed that main components in sugi wood-vinegar were methanol,ketones,carboxylic acids,furans,phenols and guaiacols.The methods of solvent extraction and silica gel column chromatography were used to further investigate the unknown components in the wood-vinegar.The chiral levoglucosan（LGA,1,6-anhydro-β-D-glucose） as an unknown component was isolated from sugi wood-vinegar,which was not able to be detected by the capillary GC.60.5 g LGA can be separated from 150 mL sugi wood-vinegar.The pathway of the formation of major components in sugi wood-vinegar was also analyzed and discussed.