The Use of Chemically Modified and Optimized Starches in Drug Delivery | Preparation, Optimization and Evaluation of Epichlorohydrincross-Linked Enset [Ensete Ventricosum (Welw.) Cheesman]) St

Publisher

LAP LAMBERT Academic Publishing

Publication Date

2020

Language

English

ISBN 10

6202528818

ISBN 13

9786202528818

Binding

Taschenbuch

Condition

Neu

Dimensions

Weight

96 grams

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Synopsis

Ensete ventricosum (Welw.) cheeseman which belongs to the family of Musaceae is one of the main sources of starch in Ethiopia. This study aimed at evaluating epichlorohydrin cross-linked enset starch as a drug release sustaining excipient in microsphere formulations of theophylline. Extracted Enset starch was cross-linked using epichlorohydrin as a cross-linking agent. The effect of cross- linker concentration, cross-linking duration and cross- linking temperature on the degree of cross- linking and release rate of microspheres prepared by emulsion solvent evaporation method was investigated using two-level full factorial design. Accordingly, the concentration of epichlorohydrin and duration of cross-linking were the most significant factors affecting both the degree of cross-linking and drug release rate. Thus, the effects of these two factors were further studied and optimized using the central composite design. As per the numerical method of central composite design, the optimal points were obtained at epichlorohydrin concentration of 13.70% and cross-linking time of 3.82h. Under these optimal conditions, the model predicts the degree of cross-linking of 74.70% and drug release

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