Natural Products

Natural products refer to the constituents or metabolites of animals, plant extracts (abbreviated as plant extracts) or insects, marine organisms and microorganisms, as well as many endogenous chemical components in humans and animals, collectively referred to as natural products, of which the main Including proteins, peptides, amino acids, nucleic acids, various enzymes, monosaccharides, oligosaccharides, polysaccharides, glycoproteins, resins, colloids, lignin, vitamins, fats, fats, waxes, alkaloids, volatile oils, flavonoids, glycosides , Terpenes, phenylpropanoids, organic acids, phenols, quinones, lactones, steroids, tannic acids, antibiotics and other naturally occurring chemical components.