EFEKTIVITAS ANTIBAKTERI KITOSAN CANGKANG KEPITING BAKAU (SCYLLA SERRATA) TERHADAP PERTUMBUHAN STREPTOCOCCUS MUTANS DAN PORPHYROMONAS GINGIVALIS

Authors

  • Mellani Cindera Negara Periodontics Department, Dentistry Programs, Medical Faculty of Universitas Sriwijaya
  • Sulistiawati .
  • Shafa Al-Afifah Silparensi Sriwijaya University image/svg+xml
  • Muhammad Rizki Ramadhan Sriwijaya University image/svg+xml
  • Trisnawaty Trisnawaty Sriwijaya University image/svg+xml
  • Listia Eka Merdekawati Sriwijaya University image/svg+xml

DOI:

https://doi.org/10.36086/jkgm.v8i1.3836

Keywords:

antibacterial, chitosan, mangrove crab, Porphyromonas gingivalis, Streptococcus mutans

Abstract

 

Streptococcus mutans and Porphyromonas gingivalis are major pathogenic bacteria involved in dental and periodontal diseases, such as caries and periodontitis. Chitosan derived from mangrove crab shells (Scylla serrata) is a natural biopolymer with potential antibacterial activity. This study aimed to evaluate the antibacterial effect of chitosan against Streptococcus mutans and Porphyromonas gingivalis based on inhibition zone diameters at concentrations of 0.25%, 0.5%, and 1%. An in vitro disk diffusion method was applied using 0.2% chlorhexidine as a positive control and distilled water as a negative control. The results showed that chitosan produced inhibition zones against both bacteria, with diameters increasing along with the concentration. The largest inhibition zone was observed at 1%, while smaller zones were formed at 0.25% and 0.5%. In conclusion, chitosan from mangrove crab shells exhibits antibacterial activity against Streptococcus mutans and Porphyromonas gingivalis, although its inhibitory effect remains lower than the positive control.

 

Downloads

Published

2026-06-26

Issue

Vol. 8 No. 1 (2026): Jurnal Kesehatan Gigi dan Mulut (JKGM)

Section

Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work