Preprint / Version 1

In vitro antimicrobial activity of Achyranthes coynei Sant.

Authors

  • Gireesh Ankad Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India
  • Vinayak Upadhya Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India
  • Sandeep Pai Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India
  • Harsha Hegde Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India
  • Subarna Roy Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India

Keywords:

Achyranthes coynei, Endemic, Antimicrobial, Tube-dilution, Minimum inhibitory concentration

Abstract

Objective To validate the traditional use of Achyranthes coynei (A. coynei) Sant. as an antimicrobial in treatment of various infectious diseases. Methods Leaf extracts of A. coynei obtained through successive solvent extraction using petroleum ether, dichrloromethane, chloroform and methanol were used to screen the antimicrobial activity on five Gram positive, five Gram negative bacteria and two fungi. Minimum inhibitory concentration (MIC) was determined by two fold tube-dilution method. Results Methanolic leaf extract was more effective than other three extracts on the tested bacteria. Methanolic extract was efficient on Staphylococcus epidermis, Bacillus subtilis, Staphylococcus aureus and Pseudomonas aeruginosa with MIC values (0.62±0.00) mg/mL. The fungal organisms were less susceptible against extracts tested. Conclusions These results support the traditional use of leaf extracts of A. coynei as they have antimicrobial potential. Further studies are needed for establishing safety, toxicity and pharmacological activity with phytochemical investigation. Keywords: Achyranthes coynei, Endemic, Antimicrobial, Tube-dilution, Minimum inhibitory concentration

Author Biographies

Gireesh Ankad, Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India

UGC-DSK-PDF, Department of Biotechnology, Shivaji University, Kolhapur, Maharashtra, India. Tel: +912312609155 Fax: +912312692333 E-mail: [email protected]

Vinayak Upadhya, Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India

UGC-DSK-PDF, Department of Biotechnology, Shivaji University, Kolhapur, Maharashtra, India. Tel: +912312609155 Fax: +912312692333 E-mail: [email protected]

Sandeep Pai, Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India

UGC-DSK-PDF, Department of Biotechnology, Shivaji University, Kolhapur, Maharashtra, India. Tel: +912312609155 Fax: +912312692333 E-mail: [email protected]

Harsha Hegde, Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India

UGC-DSK-PDF, Department of Biotechnology, Shivaji University, Kolhapur, Maharashtra, India. Tel: +912312609155 Fax: +912312692333 E-mail: [email protected]

Subarna Roy, Regional Medical Research Centre, ICMR, Nehru Nagar, Belgaum-590010, India

UGC-DSK-PDF, Department of Biotechnology, Shivaji University, Kolhapur, Maharashtra, India. Tel: +912312609155 Fax: +912312692333 E-mail: [email protected]

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