Direct distillation extraction method(DDE) and simultaneous distillation extraction method(SDE) were used for extracting the volatile substances of dark green tea.

• 实验采用水蒸汽蒸馏-溶剂萃取法和同时蒸馏-萃取法提取黑茶中挥发性物质,测得用两种方法提取的黑茶挥发油含量分别为2。