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    Antibacterial Assay of the Whole Plant Ethanolic Extract of Amaranthus viridis, Aerva sanguinolenta and Cynodon dactylon against Streptococcus mutans and Lactobacillus acidophillus – An in vitro Microbiological Study

    Shabnam Zahir1★, Tamal Kanti Pal2, Abhijit Sengupta3, Shibendu Biswas4, Shyamal Bar5, Rehana Parveen6★ Corresponding author

    1. 1Department of Paediatrics and Preventive dentistry, Guru Nanak Institute of Dental Sciences and Research, Sahid Colony, Panihati, Kolkata, West Bengal, INDIA.
    2. 2Department of Oral and Dental Sciences, JIS University, Panjvilla, Agarpare, Kolkata, West Bengal, INDIA.
    3. 3Guru Nanak Institute of Pharmaceutical Sciences and Research, Sahid Colony, Panihati, Kolkata, West Bengal, INDIA.
    4. 4Department of Microbiology, Guru Nanak Institute of Dental Sciences and Research, Sahid Colony, Panihati, Kolkata, West Bengal, INDIA.
    5. 5Department of Orthodontics, Burdhaman Dental College and Hospital, Power house Para, Khosbagan, Bardhaman, West Bengal, INDIA.
    6. 6Department of Microbiology, IPGME&R and SSKM Hospital Kolkata, West Bengal, INDIA.

    CORRESPONDENCE

    Shabnam Zahir

    Department of Paediatrics and Preventive dentistry, Guru Nanak Institute of Dental Sciences and Research, Sahid Colony, Panihati, Kolkata, West Bengal, INDIA.

    dr.shabnam.zahir@gmail.com

    Received: 05-06-2021; Revised: 15-07-2021; Accepted: 14-08-2021.

    Volume 13, Issue 4 · pp. 257–264 · PUBLISHED 1 October 2021 · DOI: 10.5530/pres.13.4.19

    View on Pharmacogn. Res. original site ↗

    ABSTRACT

    Background:Dental caries, a multifactorial, microbial disease of calcified portion of tooth, can be controlled by controlling the microbial factor either by synthetically derived or naturally derived antibacterial components. Aim:Antibacterial assay of three whole plant ethanolic extracts against two cariogenic bacteria to find out a plant extract which could be used as therapeutically effective method of controlling dental caries by controlling its microbial factor. Materials and Methods: Antimicrobial activity of 1000 μg/ml, 750 μg/ml, 500 μg/ml and 250 μg /ml concentration of Amaranthus viridis (A1), Aerva sanguinolanta (A2), Cynodon dactylon (A3) ethanolic whole plant extracts were measured by agar disc diffusion and broth microdilution method against Streptococcus mutans, and Lactobacillus acidophilus, 5% DMSO (negative control) and 30% Vancomycin (positive control). Result: The 1000 μg/ml (100%), ethanolic extracts of (A2) showed greatest inhibition zone (mean-11.860 mm) againstStreptococcus mutans and (mean= 9.730 mm) againstLactobacillus acidophilluswhich were more than negative control but less than positive control. (A2) exhibited the lowest MIC of 0.02050 μg/ml and 0.02050 μg/ml againstStreptococcus mutans and Lactobacillus acidophillus respectively. Conclusion:Aerva sanguinolenta whole plant ethanolic extract can be used to inhibit growth of cariogenic bacteria, thereby can be used for controlling microbial factor of dental caries in human being.

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      Zahir, S., Pal, T. K., Sengupta, A., Biswas, S., Bar, S., & Parveen, R. (2021). Antibacterial Assay of the Whole Plant Ethanolic Extract of Amaranthus viridis, Aerva sanguinolenta and Cynodon dactylon against Streptococcus mutans and Lactobacillus acidophillus – An in vitro Microbiological Study. Pharmacognosy Research, 13(4), 257–264. https://doi.org/10.5530/pres.13.4.19