仙人掌超微粉挥发性成分研究

Determination of Chemical Constituents of the Volatile Oil from Opuntia dillenii(Ker-Gaw.) Haw

目的:研究仙人掌中的挥发性成分。方法:利用水蒸气蒸馏法提取经超微粉碎后的仙人掌[Opuntia dillenii(Ker-Gaw.)Haw]挥发油,用GC-MS进行测定,结合计算机检索技术对分离的化合物进行结构鉴定,应用色谱峰面积归一化法计算各成分的相对百分含量。结果:共分离鉴定出32个化学成分,占总成分的98.097%,其中相对百分含量大于2%的分别确定为异丁基邻苯二甲酸酯(Isobutyl phthalate)27.492%,棕榈酸(Palmitic acid)16.716%,丁基邻苯二甲酸酯(Butyl phthalate)11.257%,薄荷脑(Menthol)6.722%,亚油酸(Linoleic acid)5.995%,壬醛(Nonanal)4.594%,乙醛(Hexanal)3.614%,十二酸(Dodecanic acid)3.244%。结论:通过对仙人掌超微粉挥发性成分的分析鉴定及相对含量测定,为综合利用仙人掌植物资源等提供科学依据。

Objective： To study the chemical constituents of the volatile oil from Opuntia dillenii（Ker-Gaw.） Haw.Method： The chemical compositions of the volatile oil of the plants which were obtained by steam distillation with hexane were analyzed by GC-MS.The constituents were identified by their mass spectra.The relative percentage of the oil constituents was calculated from the GC peak areas.Result： Thirteen-two kinds of chemical constituents in Opuntia dillenii（Ker-Gaw.） Haw were separated and characterized;which were representing 98.097% of the oil.Relative contents that were more than 2% were determined as Isobutyl phthalate 27.492%,Palmitic acid 16.716%,Butyl phthalate 11.257%,Menthol 6.722%,Linoleic acid 5.995%,Nonanal 4.594%,Hexanal 3.614%,Dodecanic acid 3.244%.Conclusion： The composition of volatile oils of micro-milling of Opuntia dillenii（Ker-Gaw.） Haw＇s comprehensive utilization to provide reference data.