马来西亚产小果沉香所结沉香的GC-MS分析

采用乙醚超声萃取法提取马来西亚产小果沉香所结沉香的挥发性成分,运用气相色谱-质谱(GC-MS)技术分析其化学成分,并与马来西亚产白木香、柯拉斯那沉香和近全缘沉香结香样品进行对比分析.结果表明,小果沉香结香样品挥发性成分的组成的主要为5,8-二羟基-2-(2-苯乙基)色酮、对映-4(15)-桉叶烷-11-醇-1-酮、6-...

GC-MS Analysis of Agarwood from Aquilaria microcarpa in Malaysia

The volatile components of agarwood from Aquilaria microcarpa in Malaysia were extracted by ether ultrasonic extraction and its chemical constituents were analyzed by gas chromatography-mass spectrometry (GC-MS) and were compared with those from Malaysia such as A. sinensis, A. crassna and A. subintegra. The results indicated that 5,8-dihydroxy-2-(2-phenylethyl)chromone, ent-4(15)-eudesmen-11-ol-1-one, (1β,4αβ,7β,8αβ)-octahydro-7-[1-(hydroxymethyl) ethenyl]-1,8α-dimethylnaphthalen-4α(2H)-ol and 6-methoxy-2-(2-phenylethyl) chromone (the relative percentages were all above 10%) were the main volatile components of A. microcarpa samples. There was a big difference between the agarwood samples from cultivated and wild tree, the relative percentage contents of sesquiterpenoids was significantly higher than that of chromones in the former, while the relative percentage contents of chromones was higher than that of sesquiterpenoids or equivalent in the latter. There were more kinds of sesquiterpenoids and chromones in the former, among which the kinds and the relative percentage contents of sesquiterpenoids were more than chromones. However, the latter were less, among which the kinds of sesquiterpenoids were more than chromones, but the relative percentage was relatively low, while the relative percentage of chromones was higher. In addition, a sesquiterpenoid of 11,13-dihydroxy- 9(10)-ene-8α,12-epoxyemophilane was only detected in the agarwood samples from cultivated samples of A. microcarpa. Moreover, the volatile components of Agarwood samples from A. microcarpa, A. sinensis, A. crassna and A. subintegra were compared and analyzed. The results showed that the kinds and relative percentage contents of compounds from A. microcarpa were significantly different from those of the latter three. There were only two common components in all samples, namely 5,8-dihydroxy-2-(2-phenylethyl) chromone and 6-methoxy- 2-(2-phenylethyl)chromone.