Exploring Film Forming Ability of Newly Synthesized Rosin Esters

The present investigation was planned to confirm the film-forming potential of synthesized rosin esters. The free films of rosin esters were prepared by solvent evaporation and characterized for the physicochemical and mechanical attributes. Suitable concentrations of rosin esters were used for coating tablets, and coated tablets were evaluated for official and unofficial quality control tests. The free films had low tensile strength, higher percent elongation value, and smooth surfaces. Therefore, the plasticizer was used to provide tensile strength to the films. The tablets were coated rapidly without agglomeration, confirming the suitability of rosin esters as a coating agent. The drug release from tablets was delayed up to 6 to 8 hours because of 10% w/w coating of rosin ester, and regioselectivity was achieved by coating with hydroxypropyl methylcellulose with sodium bicarbonate. The pH-dependent solubility of rosin esters produces chrono-triggered drug release from coated tablets. The present investigation confirms the suitability of newly synthesized rosin esters in in designing a region selective chrono- triggered drug delivery system.