Abstract A simple and reliable HPLC-DAD method for qualitative and quantitative determination of sesquiterpenes in Laurencia tristicha and L. okamurai was developed, and then applied to compare the sesquiterpenes in the two alga species. Except for the difference in content, L. tristicha and L. okamurai are very similar in chemical compositions. The content of laurinterol, the most abundant component in both species, is much higher in L. okamurai than in L. tristicha, while debromolaurinterol and aplysinol are the second abundant components of L. tristicha and L. okamurai, respectively. The current results confirmed the great chemotaxonomic importance of laurane-type sesquiterpenes, especially the main constituents of laurinterol, debromolaurinterol, and aplysinol, for L. tristicha and L. okamurai.

中文翻译：

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基于定性和定量 HPLC 测定的 Laurencia trischa 和 Laurencia okamurai 的比较分析

摘要 建立了一种简单可靠的HPLC-DAD 方法，用于定性和定量测定Laurencia tristicha 和L. okamurai 中的倍半萜，然后用于比较这两种藻类中的倍半萜。除了含量不同外，L. tristicha 和 L. okamurai 在化学成分上非常相似。L. okamurai 中月桂醇的含量是两种物种中最丰富的成分，其含量远高于 L. tristicha，而 debromolaurinterol 和 aplysinol 分别是 L. tristicha 和 L. okamurai 的第二丰富成分。目前的结果证实了月桂烷型倍半萜烯的化学分类学重要性，尤其是月桂醇、debromolaurinterol 和 aplysinol 的主要成分，对于 L. tristicha 和 L. okamurai。