【摘要】 目的分析菥蓂籽炒香前后挥发油的化学组成及其变化。方法应用水蒸气蒸馏法提取挥发油,运用GC-MS结合计算机检索鉴定其化学成分,并计算出各组分的相对含量。结果共鉴定了47种化合物。生药中含有32种,占其挥发油总相对含量的99.38%,主要由烯丙基异硫氰酸酯和4-异硫氰酸基-1-丁烯(69.70%)组成;炒香后种子中含有31种,占总相对含量的98.21%,主要由腈化物(79.36%)组成。与炒香前相比,挥发油及油中大多数化合物的含量减少;其中有16种化合物发生变化未被再鉴定出来,新鉴定出15种化合物,香气物质的种类较丰富。其中,烯丙基异硫氰酸酯和4-异硫氰酸基-1-丁烯的总量由391.49ml.kg-1减少为5.39ml.kg-1。结论炒香对菥蓂籽挥发油的含量和化学成分的组成产生了较大影响。更多还原

【Abstract】 OBJECTIVE To analyze the chemical constituents and their change of the volatile oil from the crude and parched seed of Thlaspi arvense L.METHODS The volatile oil was extracted by steam distillation,and chemical constituents were separated and identified by GC-MS.The relative content of each constituent was determined by area normalization.RESULTS 47 compounds have been identified from the two kinds of oil.There were 32 compounds representing 99.38% of the total relative contents of the volatile oil in crude seed,in which the main constituents were allyl isothiocyanate and 1-butene,4-isothiocyanato-with relative content 69.70%.While there were 31 compounds representing 98.21% of the total relative contents of the volatile oil in parched seed,in which the main constituent was cyanide with relative content 79.36%.In contrast with the crude seed,the contents of volatile oil seed and most compounds in the oil of parched seed were reduced.16 Compounds have changed in the oil of crude seed,which have not been identified,while 15 new compounds have been identified.The sorts of aromatic compounds were more than before.The total content of allyl isothiocyanate and 1-butene,4-isothiocyanato reduced from 391.49 ml·kg-1 to 5.39 ml·kg-1.CONCLUSION The parching could have great effect on the chemical constituents and contents of the volatile oil of the seed of Thlaspi arvense L.更多还原