With longan seed as the study material, volatile constituents of longan seed soluble in ethyl acetate were analyzed with GC -MS, and 40 components were determined.
以龙眼核为研究材料，利用GC-MS分析了龙眼核乙酸乙酯萃取物的挥发性成分，共分离鉴定出了40个组分。
Its bitter leaves feature antioxidant components and unique constituents that are responsible for the herb's historic USES, especially for immune and respiratory support.
它的苦叶子富含抗氧化剂成分，这种唯一的成分特别对于免疫系统和呼吸系统方面有较好的支持作用。
The main components of Zanthoxylum are volatile oils, alkaloids, amides, etc. The contents and constituents of these materials from different species or habitats are greatly different.
花椒中富含挥发油、植物碱、酰胺类物质等，因品种、产地的不同这些物质组分和含量有较大区别。
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