A comparative evaluation of antimicrobial efficacy of extracts of Rosa Indica, Jasminum grandiflorum L and Hibiscus rosa-sinensis L against Streptococcus Mutans, Lactobacillus acidophilus and Staphylococcus aureus: an in vitro study

Authors

  • Lilly B. K. Department of Public Health Dentistry, College of Dental Sciences, Davangere, Karnataka, India
  • Prashant G. M. Department of Public Health Dentistry, College of Dental Sciences, Davangere, Karnataka, India
  • Alwin Antony Department of Public Health Dentistry, Sharavathi Dental College and Hospital, Shivamogga, Karnataka, India
  • Mohammed Subhan I. Department of Prosthodontics, College of Dental Sciences, Davangere, Karnataka, India
  • Mahalakshmi A. C. Department of Prosthodontics, S. J. M Dental college and Hospital, Chitradurga, Karnataka, India

DOI:

https://doi.org/10.18203/2319-2003.ijbcp20263791

Keywords:

Antibacterial, Jasmine, Hibiscus, Rose leaves, Chlorhexidine

Abstract

Background: Early humans were driven to explore their immediate natural surroundings for remedies to relieve pain and discomfort by using many plants and animal products. Despite advances in medicine, plants play a vital role in contributing to health care. However, scientific knowledge of the antimicrobial properties of plant species may contribute to the development of drugs against microorganisms of medical interest, particularly in dentistry. Aim was to evaluate the antimicrobial efficacy of Jasmine, Hibiscus and Rose leaf extracts on oral microorganisms versus the gold standard, Chlorhexidine.

Methods: Ethanol extracts prepared from Jasmine, Hibiscus, and Rose leaves were screened for antimicrobial activity against S. mutans, L. acidophilus, and S. aureus using the agar well diffusion method. The minimum inhibitory concentration (MIC) was determined for the test organisms. Statistical analysis was performed with one-way analysis of variance (ANOVA) followed by post hoc and Kruskal-Wallis tests.

Results: At low concentration, 0.2% chlorhexidine (5 μg/ml) showed the maximum zone of inhibition, followed by Rose, Jasmine, and Hibiscus leaves. Rose leaves (10 μg/ml, 25 μg/ml, 50 μg/ml, 75 μg/ml) showed the maximum zone of inhibition, followed by 0.2% chlorhexidine, hibiscus, and jasmine leaves against S. aureus.  Extracts were found to have statistically significant (p≤0.05) antimicrobial activity against S. mutans and S. aureus with MIC values of 0.2 μg/ml and 3.125 μg/ml respectively. Whereas no significant value was seen against L. acidophilus. A proportional increase in their antimicrobial activity (zone of inhibition) was observed. 

Conclusions: Chlorhexidine continues to remain as the gold standard; however, a highly significant difference was noted between the groups. Thus, confirming the presence of active constituents in medicinal plants.

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Published

2026-10-26

How to Cite

B. K., L., G. M., P., Antony, A., Subhan I., M., & A. C., M. (2026). A comparative evaluation of antimicrobial efficacy of extracts of Rosa Indica, Jasminum grandiflorum L and Hibiscus rosa-sinensis L against Streptococcus Mutans, Lactobacillus acidophilus and Staphylococcus aureus: an in vitro study. International Journal of Basic & Clinical Pharmacology, 15(6), 1369–1377. https://doi.org/10.18203/2319-2003.ijbcp20263791

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Original Research Articles