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- W2378618009 abstract "Objective:To investigate film-forming properties of main film-forming materials in water extraction liquid and different concentration ethanol extraction liquid of Platycladus orientalis leaf,then to provide references for selection and application of film-forming material from Chinese medicine spray membrane agent containing P.orientalis leaf.Method:According to solubility of film-forming material,polyvinylpyrrolidone(PVP),polyvinyl alcohol(PVA),ethyl cellulose(EC) and methyl cellulose(MC) were selected as film-forming materials,membrane structure photos was analyzed by microscopy and image capture software,film-forming property of film-forming materials was investigated in water extraction liquid and different concentration ethanol extraction liquid of P.orientalis leaf.Result:Film-forming properties of PVP-K30 and PVP-K90 in water extraction liquid and different concentration ethanol extraction liquid of P.orientalis leaf was very fine;PVA in water extraction liquid and the concentration of 20%,40%,60% ethanol extraction liquid could form film,but surface of membrane was uneven and rough;Film-forming property of EC in extraction solution of 100% ethanol was very fine,but it was poor in extraction solution of 80% ethanol,membrane structure was not obvious;Film-forming properties of MC in water extraction liquid and different concentration ethanol extraction liquid of P.orientalis leaf were very well,it could form a layer of thick and dense film;Film-forming property of PVB was excellent only in extraction solution of 100% ethanol.Conclusion:Choice of film-forming material had a relationship with polarity of extraction solvent for extraction liquid of P.orientalis leaf;Film-forming properties of PVP-K30 were fine in water extraction liquid and different concentration ethanol extraction liquid of P.orientalis leaf,it was optimum choice of film-forming material for Chinese medicine spray film agent and film agent containing P.orientalis leaf." @default.
- W2378618009 created "2016-06-24" @default.
- W2378618009 creator A5012097215 @default.
- W2378618009 date "2012-01-01" @default.
- W2378618009 modified "2023-09-26" @default.
- W2378618009 title "Screening of Film Forming Material for Different Extraction Liquid of Platycladus orientalis Leaf" @default.
- W2378618009 hasPublicationYear "2012" @default.
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