目的 :了解 12种常见食用蘑菇长链脂肪酸的绝对含量。方法 :以正十七酸为内标 ,HCl- CH3OH抽提和酯化 ,正己烷提取脂肪酸甲酯化物 ,进行毛细管气相色谱分析。结果与结论 :12种食用蘑菇所含脂肪酸的绝对含量不同。除黑木耳外 ,其余均含有较高不饱和脂肪酸 ,其中猴头菇、金针菇、草菇、凤尾菇及紫孢侧耳为高 ,均超过 2 8mg/g。 Objective: To understand the absolute content of 12 kinds of common mushroom long-chain fatty acids. Methods: The n-heptadecanoic acid was used as internal standard, extracted with HCl-CH3OH and esterified. The fatty acid methyl ester was extracted with n-hexane and analyzed by capillary gas chromatography. RESULTS AND CONCLUSION: The absolute contents of fatty acids contained in 12 edible mushrooms were different. In addition to black fungus, the rest contain higher unsaturated fatty acids, including Hericium, Flammulina velutipes, mushrooms, mushrooms and spore Pleural auriculata are high, both over 28mg / g.