Synthetic methods of vanillin include o-methoxyphenol method, lignin method, safrole method, eugenol method, methyl hydroxybenzene method and microbial method.

生产方法主要有愈创木酚法、 木质素法、黄樟素法、丁香酚法、甲酚法和微生物法等。

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In GC-MS analysis, 9 major constituents accounting for 86.1% of the total essential oil, of which methyleugenol (22.9%) was the most, followed by safrole (19.8%).

结果表明：有9种含量大于1%的化学成分占北细辛挥发油总量的86.1%，其中甲基丁香酚含量最高（22.9%），其次为黄樟醚（19.8%）；

youdao

In GC-MS analysis, 9 major constituents accounting for 86.1% of the total essential oil, of which methyleugenol (22.9%) was the most, followed by safrole (19.8%).

结果表明：有9种含量大于1%的化学成分占北细辛挥发油总量的86.1%，其中甲基丁香酚含量最高（22.9%），其次为黄樟醚（19.8%）；

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