松脂是多萜混合物,主要组成是固体树脂酸溶解在萜烯类中所形成的溶液。它在松树体内形成机理极其复杂,据现代生物科学的成就,按生源学说,初步认为是从叶中光合作用生成的糖,经生物酶的催化,生成萜类(松脂)。所以,它不仅涉及到不同类型松树的生长发育和生理、生化的差异,而且还牵涉到树木内含物的树脂酸、萜烯化学组份的性质和遗传 Turpentine is a mixture of polyterpenes, the main component of which is the solution of the solid resin acid dissolved in the terpenes. Its formation mechanism in pine body is extremely complicated. According to the achievements of modern biological science, according to the theory of students, it is initially believed to be the sugar generated from the photosynthesis in leaves and catalyzed by biological enzymes to produce terpenoids (turpentine). Therefore, it not only relates to the growth and physiological and biochemical differences of different types of pine trees, but also involves the resin acids of the tree contents, the nature and the inheritance of the terpenic chemical components