1, domestic research: mainly focused on extraction technology and quality control of finished products. For example, some scholars use ultrasonic-assisted extraction and other processes to finally get high-quality 4- terpineol essential oil. In addition, some scholars explored the application of microwave-assisted extraction from the perspective of improving extraction efficiency and reducing cost, and optimized the experimental process by response surface method to increase the content of 4- terpineol in dandelion volatile oil.

2. Foreign research: mainly focused on its chemical constituents, drugs and anticancer effects. Studies have shown that 4- terpineol has antioxidant, anti-inflammatory and antibacterial effects, and can promote cell proliferation and immune function. In addition, the study also found that 4- terpineol can inhibit the growth and spread of cancer cells and is considered as a potential anticancer compound. In addition, foreign countries will also study the distillation process and preservation method of this essential oil.

3. Terpineol is an important perfume, and its molecular formula is C 10H 18O. Isomers are generally called α-terpineol, β-terpineol and γ-terpineol respectively. It naturally exists in various essential oils. Terpineol is made from turpentine in industry and is a mixture, mainly α-terpineol.