1.1 Extraction Technologies of Chemical Constituents from Natural Medicines.mp4+ 1.2 Conventional Separation Techniques for Chemical Constituents of Natural Medicines.mp4+ 1.3 Chromatographic Separation Techniques for Chemical Constituents of Natural Medicines.mp4+ 2.1 Structural Characteristics and Physicochemical Properties of Glycosides.mp4+ 2.2 Preparation Techniques of Glycosides.mp4+ 3.1 Structural Classification and Physicochemical Properties of Flavonoids.mp4+ 3.2 Preparation Techniques of Flavonoids.mp4+ 4.1 Structural Classification and Physicochemical Properties of Quinones.mp4+ 4.2 Preparation Techniques of Quinones.mp4+ 5.1 Structural Classification and Physicochemical Properties of Alkaloids.mp4+ 5.2 Preparation Techniques of Alkaloids.mp4+ 6.1 Structural characteristics and physicochemical properties of terpenoid compounds.mp4+ 6.2 Preparation Techniques of Terpenoids.mp4+ 7.1 Structural Classification and Physicochemical Properties of Volatile Oils.mp4+ 7.2 Preparation Techniques of Volatile Oils.mp4+