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Article

An in vitro study on the anti-microbial effi cacy of ten herbal extracts on primary plaque colonizers

Byalakere Rudraiah Chandrashekar1★, Ramesh Nagarajappa2, Rupal Singh3, Roopesh Thakur3★ Corresponding author

  1. 1Ph.D Scholar, Faculty of Dental Sciences, Pacifi c Academy of Higher Education and Research University, Udaipur, Rajasthan, INDIA.
  2. 2Department of Public Health Dentistry, Rama Dental College, Khanpur, Uttar Pradesh, INDIA.
  3. 3Center for Scientifi c Research and Development, People’s University, Bhanpur, Bhopal, Madhya Pradesh, INDIA.

CORRESPONDENCE

Byalakere Rudraiah Chandrashekar

Ph.D Scholar, Faculty of Dental Sciences, Pacifi c Academy of Higher Education and Research University, Udaipur, Rajasthan, INDIA.

drchandrubr@yahoo.com

Volume 6, Issue 4 · pp. 33–39 · PUBLISHED · DOI: 10.5530/jyp.2014.4.6

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ABSTRACT

Introduction:To assess and compare the anti-microbial effi cacy of ten herbal extracts against primary plaque colonizers. Materials and Methods:The branches of 10 plants with ethno-pharmacological background were collected and healthy leaves separated to prepare the fi ne powder. The extraction procedure was carried out by cold infusion method using ethanol. The working concentration of the extract (100 mg/ml) was prepared by mixing dried leaf extract with dimethyl sulfoxide (DMSO). 0.2% chlorhexidine and DMSO were used as positive and negative controls, respectively. Agar well diffusion method was used for anti-microbial effi cacy testing. The statistical analysis was done using SPSS 16. The mean diameter of inhibition zone between the categories was compared using one-way analysis of variance and Tukey’s post-hoc test. Results: The highest mean diameter of inhibition zone against Streptococcus mutans was produced by Acacia nilotica followed by Psidium guajava, Eucalyptus hybrid and Murraya koenigii L.S extracts in the descending order. The highest mean inhibition zone against Streptococcus sanguinis was produced by chlorhexidine followed by A. nilotica, Eucalyptus, P. guajava, and M. koenigii L.S extracts in the descending order. The highest mean inhibition zone against Streptococcus salivarius was produced by P. guajava, followed by chlorhexidine, A. nilotica, Eucalyptus, M. koenigii L.S and Hibiscus sabdariffa L extracts in the descending order. Conclusion:P. guajava, Eucalyptus, A. nilotica, M. koenigii L.S and H. sabdariffa L have the potential to inhibit primary plaque colonizers, and they could be used as anti-plaque agents.

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    Chandrashekar, B. R., Nagarajappa, R., Singh, R., & Thakur, R. (). An in vitro study on the anti-microbial effi cacy of ten herbal extracts on primary plaque colonizers. Journal of Young Pharmacists, 6(4), 33–39. https://doi.org/10.5530/jyp.2014.4.6