几种金合欢属植物木材和树皮中δ7植物甾醇及植物甾醇糖苷的鉴定

Identification of delta7 phytosterols and phytosteryl glucosides in the wood and bark of several Acacia species.

作者信息

Freire Carmen S R, Coelho Dora S C, Santos Nuno M, Silvestre Armando J D, Pascoal Neto Carlos

机构信息

Center for Research in Ceramics and Composite Materials (CICECO), Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.

出版信息

Lipids. 2005 Mar;40(3):317-22. doi: 10.1007/s11745-005-1388-y.

DOI:10.1007/s11745-005-1388-y

PMID:15957259

Abstract

The wood and bark of four Acacia species growing in Portugal, namely, A. longifolia, A. dealbata, A. melanoxylon, and A. retinodes, were investigated for their sterol content. The lipids fractions of the different wood and bark samples were isolated, and the sterols were identified and quantified by GC-MS. Two delta7 sterols, specifically, spinasterol and dihydrospinasterol, were the main sterols found in considerable amounts, particularly in wood tissues (more than 0.5 g/kg of dry wood in the case of A. melanoxylon and A. retinodes). The corresponding unusual steryl glucosides were also identified in significant amounts in the wood and bark extracts.

摘要

对生长在葡萄牙的四种金合欢属植物，即长叶金合欢、银荆、黑木相思和绢毛相思的木材和树皮的甾醇含量进行了研究。分离出不同木材和树皮样品的脂质部分，并通过气相色谱-质谱联用仪（GC-MS）对甾醇进行鉴定和定量。两种Δ7甾醇，即菠菜甾醇和二氢菠菜甾醇，是含量可观的主要甾醇，特别是在木材组织中（黑木相思和绢毛相思的干木材中含量超过0.5 g/kg）。在木材和树皮提取物中也大量鉴定出了相应的不寻常的甾醇糖苷。