From gas chromatogram chart, in addition to less composition of volatile compounds, onion oleoresin contained more resin that has sharp flavor and pigment.
From gas chromatogram chart, in addition to less composition of volatile compounds, onion oleoresin contained more resin that has sharp flavor and pigment.
从气相色谱图上可以看出，洋葱油树脂中除含少量洋葱精油外，主要是沸点较高的倍半萜及代表辛香味的树脂成分、色素等。