The use of traditional Chinese medicine essential oil(TCEO)is mainly for external application,hence the choice of dosage form and the manner of use are very restricted.In order to innovate the route of adminis-tration of eucommia essential oil,in this experiment,based on the corn starch prepared by biological method,the porous starch was prepared by enzyme method and the V-type crystalline starch was prepared by alcohol method,and then the eucommia powder essential oil was prepared by compounding with eucommia essential oil respectively,and the application of different kinds of corn starch in eucommia essential oil was comparatively investigated.The re-sults indicated that the composite index of porous corn starch and eucommia essential oil was 44％,significantly high-er than that of the other two kinds of corn starch;the crystalline properties indicated that all the powder essential oils showed new absorption peaks at 2θ of 20.5°,indicating that the composite formed a new V-type structure,in which the porous corn starch powder essential oil was stronger than that of the other two kinds of powder essential oils;and the increase of enthalpy in the thermodynamic properties also indicated that the composite formed a new chemical structure,in which the enthalpy of the porous corn starch powder essential oil was the highest;the ap-pearance of new characteristic peaks in the infrared scan further confirmed that the corn starch powder essential oils produced new chemical bonds,in which the porous corn starch powder essential oil showed the strongest absorption peak.
corn starcheucommia essential oiltraditional Chinese medicine powder essential oilapplication re-search
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