Optimizing extraction process of volatile oil from Semen Sinapis Albae and analyzing its chemical components / 中华中医药杂志

the hydrolysis temperature.7 Components had been identified from 10 separated peaks,these accounted for 99.999% of the total volatile oil.The main components were Allyl isothiocyannte(89.411%),3-Butenyl isothiocyanate(7.364%) and 3-Butenenitrile(1.275%).Conclusion:The optimum extraction conditions were:hydrolysis temperature 50,pH value of buffer solution 5.0,concentration of ascorbic acid 0.5mmol/L.The yield rate of the volatile oil of this process can reach 0.164%,and this process was stable and feasible;the main components of the volatile oil were isothiocyanates,and the volatile oil also contained a small amount of aldehydes,ethers and nitriles.