Magnolia officinalis Rehd. et Wils. or Magnolia officinalis Rehd. et Wils. var. biloba Rehd. et Wils. It’s mainly distributed in Sichuan, Hubei, Zhejiang and other regions of China. The main effective components of Magnolia officinalis are its phenolic characteristic substances, including honokiol, honokiol, and isohonokiol; There are also alkaloids, such as norepinephrine, palmatine, palmatine, and liriodendrine. Dual use of medicine and food.