Methods The polybasic acids and higher fatty acids in Rosa roxburghii Tratt fruit were methylated and then the acidic compounds were isolated and identified by capillary GC-MS method.

• 方法采用硫酸甲酯化处理刺梨果样品,用气相色谱-质谱联用(GC-MS)分析其多元酸和高级脂肪酸含量,用面积归一化法得出各有机酸的相对含量。