Objective To study the components of ginger oil with two different extraction methods. Methods Ginger oil was extracted by ultrasonic assisted multi-enzyme hydrolysis method and ultrasonic–assisted extraction method from ginger powder. And the components of ginger oil were analyzed by gas chromatography-mass spectrometry (GC-MS). Results The average yield of ginger oil with two methods were (6.72?0.02)% and (6.60?0.04)% respectively. Fifty three kinds of components were identified by ultrasonic assisted multi-enzyme hydrolysis method, and the content of gingerol was 25.36%, zigiberene was 18.12%. Forty four kinds of components were identified by ultrasonic-assisted extraction method, and the content of zigiberene was 24.41%, gingerol was 20.14%. There was difference in the components of ginger oil between the two methods. Prophase and metaphase was mainly terpenoids and their oxides, the latter was mainly the zingiber oleoresin. Conclusion There were differences in the content of volatile and non-volatile components of ginger oil extracted by different methods. This provides the reference for the application of ginger oil in pratical production.
标题：不同方法提取姜油及其化学成分的气相色谱-质谱法比较分析
英文标题：Gas chromatography-mass spectrometry analysis of ginger oil with different extraction methods
