Comparison of structural and GC-MS and FT-IR characteristics of Santalum album Linn and Spirostachys africana Sond
Santalum album Linn looks like Spirostachys africana Sond,but they are two quite different species that be-long to different families.The former is a usual tree from southern India,being classified under the family Santalace-ae,while the latter is a deciduous tree species that is native to Africa,being highly valued for its attractive wood ap-pearance.In this study,to distinguish the difference between them,S.album Linn and Sp.africana Sond were ana-lyzed from the three aspects,i.e.,structural characteristics,gas chromatography-mass spectrometer(GC-MS)and Fourier transform infrared(FT-IR)spectral characteristics,the structural characteristics of sandalwood and African spikwood were elaborated,and the following distinguishing points were summarized.The heartwood of S.album Linn was yellowish brown while the heartwood of Sp.africana Sond was brown with black stripes.S.album Linn mainly had single pore,while Sp.africana Sond had multiple diameter pore and a few pore groups besides single pore.Black gum was found in the heartwood of the Sp.africana Sond,but was not found in S.album Linn.The wood ray was single or double row in S.album Linn,the main in double row,while mostly single row in Sp.africana Sond.Most ray types of S.album Linn were heterogeneousⅡ,but the ray types of Sp.africana Sond were homogeneous and het-erogeneousⅢ.The axial parenchyma of S.album Linn was mainly scattered,while the axial parenchyma of Sp.afri-cana Sond was irregular and discontinuous,tangential or scattered.Ultrasonic extraction of S.album Linn and Sp.af-ricana Sond powder for 1 h with 95%ethanol was carried out,the result showed that there were some differences be-tween the total ion chromatogram of S.album Linn and Sp.africana Sond.The peak emergence time of S.album Linn was mainly concentrated between 23 and 27 min,and that of Sp.africana Sond was mainly concentrated between 31 and 34 min.The main chemical components of S.album Linn are α-santalol,β-santalol,anti-α-santalol,ethyl laurate and artemisia triene,among which the highest relative content was α-santalol.While main chemical components of Sp.africana Sond were 2-camphene,1h-cyclopentene and[b]quinoline-9-amine,2,3,5,6,7,8-hexahydrohydride-,vita-min A and androstenedione,in which the relative content of vitamin A was the highest.The FT-IR test showed that S.album Linn and Sp.africana Sond had significant differences in the range of 600-1 000 cm-1,and the absorption peaks of S.album Linn were not obvious at 891-899 and 663-669 cm-1,while Sp.africana Sond had obvious ab-sorption peaks at both places.S.album Linn did not show a peak representing cellulose at 748 cm-1 while Sp.africana Sond had a small peak here.
Santalum album LinnSpirostachys africana Sondwood structureGC-MSnear infrared spectrum analysis
万方数据
维普
