Determination content of phenolic acid in aloe
Objective:To establish a method to determine the content of phenolic acid class ingredient in aloe,and with the method determine the content of phenolic acid class ingredient in several kind of aloes.Methods: Taking gallic acid as reference substance,determed with spectrophotometric method by potassium ferricyanide-iron trichloride as developer.Results: In these several aloe congeal the glue juice,The phenolic acid content is 1.69～79.28 μg/g,In their leaf skin,The phenolic acid content is 36.35～752.64 μg/g.Conclusion: The content of the phenolic acid is different in different assortment aloe.The content of in leaf skin were obviously higher than in congeal the glue juice in the same kind of aloe.The determination method is stable and accurate,It was fit for determination the phenolic acid class ingredient content in aloe.