黄菠萝树(其根皮中药称黄柏)在我国东北地区资源极为丰富。无产阶级文化大革命以来,广大医药工作者,赤脚医生利用它的根皮,从中提取了具有抗菌消炎作用的盐酸小蘖碱,并且配成各种注射液,广泛用于临床,对于细菌性痢疾,胃肠感染有极好地疗效。为防治农村常见病,多发病作出了贡献。黄菠萝树根皮含小蘖碱一般在2—5%左右,可是目前所运用的单纯石灰水提取 Yellow pineapple tree (the root bark of Chinese medicine called Phellodendron) is extremely rich in resources in Northeast China. Since the proletarian cultural revolution, the majority of medical workers, barefoot doctors have used its root bark, extracted berberine hydrochloride with anti-bacterial and anti-inflammatory effects, and formulated various injections, which are widely used in clinical practice. For bacterial dysentery, Gastrointestinal infections have excellent efficacy. For the prevention and treatment of common diseases in rural areas, the disease has made a contribution. Yellow pineapple root bark containing berberine is generally about 2-5%, but the current use of simple lime water extraction