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Identification of Δ 7 phytosterols and phytosteryl glucosides in the wood and bark of several Acacia speciesphytosterols and phytosteryl glucosides in the wood and bark of several Acacia species
Author(s) -
Freire Carmen S. R.,
Coelho Dora S. C.,
Santos Nuno M.,
Silvestre Armando J. D.,
Pascoal Neto Carlos
Publication year - 2005
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/s11745-005-1388-y
Subject(s) - bark (sound) , acacia , sterol , botany , chemistry , phytosterol , biology , food science , cholesterol , biochemistry , ecology
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 Δ 7 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.