An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

European Journal of Pharmaceutical and Medical Research (EJPMR) has indexed with various reputed international bodies like : Google Scholar , Indian Science Publications , InfoBase Index (In Process) , SOCOLAR, China , Research Bible, Fuchu, Tokyo. JAPAN , International Society for Research activity (ISRA) , Scientific Indexing Services (SIS) , Polish Scholarly Bibliography , Global Impact Factor (GIF) (Under Process) , Universal Impact Factor , International Scientific Indexing (ISI), UAE  , Index Copernicus , CAS (A Division of American Chemical Society) USA (Under Process) , Directory of Open Access Journal (DOAJ, Sweden, in process) , UDLedge Science Citation Index , CiteFactor , Directory Of Research Journal Indexing (DRJI) , Indian citation Index (ICI) , Journal Index (JI, Under Process) , Directory of abstract indexing for Journals (DAIJ) , Open Access Journals (Under Process) , Impact Factor Services For International Journals (IFSIJ) , Cosmos Impact Factor , Jour Informatics (Under Process) , Eurasian Scientific Journal Index (ESJI) , International Innovative Journal Impact Factor (IIJIF) , Science Library Index, Dubai, United Arab Emirates , Pubmed Database [NLM ID: 101669306] (Under Process) , IP Indexing (IP Value 2.40) , Web of Science Group (Under Process) , Directory of Research Journals Indexing , 

 ISSN 2394-3211

Impact Factor: 6.222

 ICV - 79.57



Swapna Aleti*, CVS Subrahmanyam and M. Laksmi Narsu


Inclusion complexes of β-cyclodextrin are useful to improve solubility and stability of drugs and therapeutic proteins. Protein molecule were actively incorporated in to HP- β-CD for improving the dissolution and bioavailability. Studies permit to understand their properties and possible therapeutic applications. Papain (digestive enzyme) was chosen and the factors, namely substrate concentration, pH of the medium, and temperature influencing enzyme activity were investigated. A suitable analytical method was established for papain at λmax 660 nm. It was verified that there is no interference of hydroxy propyl β-cyclodextrin on the analytical wavelength of enzyme. Enzymatic activity of papain was assayed at increasing concentrations of hydroxy propyl β-cyclodextrin. The enzyme activity was decreased as the concentration of HP-β-CD increased, indicating inaccessibility of papain to the substrate and also increasing complexation. There was no shift in optimum pH 7.5 on adding HP-β-CD. Optimum temperature for papain was 30οC and temperature stability was achieved till 55 °C, in presence of HP-β-CD. Complexes of different ratios were prepared from 1:10 to 1:200 by physical mixing, solvent evaporation and neutralization, and assayed. By physical mixtures, the enzymatic activity was found to be enhanced compared to papain alone and optimum was observed at 1:40. The free activity was reduced gradually in alkaline pH, but inclusion complex preserved its activity even in alkaline pH, and extreme temperatures. Inclusion complexes were analyzed by IR and bands showed the presence of enzyme and HP-β-CD in the complexes.

Keywords: Enzyme, Papain, Hydroxy Propyl ?- Cyclodextrin, Enzyme activity, Inclusion complexes.

[Full Text Article]



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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (IP Value 2.40) Web of Science Group (Under Process) Directory of Research Journals Indexing