AAPS PharmSciTech

, Volume 16, Issue 1, pp 59–66 | Cite as

Serratiopeptidase Loaded Chitosan Nanoparticles by Polyelectrolyte Complexation: In Vitro and In Vivo Evaluation

  • Nitin Mali
  • Preeti Wavikar
  • Pradeep VaviaEmail author
Research Article


The aim of the present study was to formulate serratiopeptidase (SER)-loaded chitosan (CS) nanoparticles for oral delivery. SER is a proteolytic enzyme which is very sensitive to change in temperature and pH. SER-loaded CS nanoparticles were fabricated by ionic gelation method using tripolyphosphate (TPP). Nanoparticles were characterized for its particle size, morphology, entrapment efficiency, loading efficiency, percent recovery, and in vitro dissolution study. SER-CS nanoparticles had a particle size in the range of 400–600 nm with polydispersity index below 0.5. SER association was up to 80 ± 4.2%. SER loading and CS/TPP mass ratio were the primary parameters having direct influence on SER-CS nanoparticles. SER-CS nanoparticles were freeze dried using trehalose (20%) as a cryoprotectant. In vitro dissolution showed initial burst followed by sustained release up to 24 h. In vivo anti-inflammatory activity was carried out in rat paw edema model. In vivo anti-inflammatory activity in rat paw edema showed prolonged anti-inflammatory effect up to 32 h relative to plain SER.


anti-inflammatory activity chitosan nanoparticle serratiopeptidase TPP 



The authors want to acknowledge DBT and UGC for fellowship and AICTE/NAFETIC and Kusum HealthCare for proving laboratory facilities.

Conflict of Interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.


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Copyright information

© American Association of Pharmaceutical Scientists 2014

Authors and Affiliations

  1. 1.Department of Pharmaceutical Sciences and TechnologyInstitute of Chemical TechnologyMumbaiIndia
  2. 2.Center for Novel Drug Delivery Systems, Department of Pharmaceutical Sciences and TechnologyInstitute of Chemical TechnologyMumbaiIndia

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