All research areas

Antibacterial and antibiofilm activity

I investigate how plant extracts affect bacterial growth, biofilm formation, and virulence-related processes.

Questions and approach

My experimental work examines plant extracts against bacteria including Pseudomonas aeruginosa and Staphylococcus aureus. I am interested in more than growth inhibition: my published studies also investigate biofilm formation and processes that help bacteria persist.

In studies of Sansevieria trifasciata extracts with my coauthors, we examined antibacterial and antibiofilm activity, protease activity, and quorum-sensing gene expression. These experiments connect chemical characterization with microbiological assays.

Read the evidence

The papers below describe the organisms, extract types, and methods used, including compound analysis, microscopy, and quantitative gene-expression measurements. The publication pages link to the available full text and citation files.

Selected publications

Read the publication record for methods, sources, and citation files.

  1. 2026

    Identification of antibacterial compounds in Dracaena trifasciata (Prain) Mabb. against Staphylococcus aureus

    Whika Febria Dewatisari, N To’bungan, N A Lestari, S D Kusumawati

    Plant Science Today

  2. 2023

    Inhibition of protease activity and anti-quorum sensing of the potential fraction of ethanolic extract from Sansevieria trifasciata Prain leaves against Pseudomonas aeruginosa

    Whika Febria Dewatisari, Laurentius Hartanto Nugroho, Endah Retnaningrum, Yekti Asih Purwestri

    Indonesian Journal of Biotechnology

  3. 2022

    Antibacterial and Anti-biofilm- Forming Activity of Secondary Metabolites from Sansevieria trifasciata- Leaves Against Pseudomonas aeruginosa

    Whika Febria Dewatisari

    INDONESIAN JOURNAL OF PHARMACY

  4. 2021

    The potency of Sansevieria trifasciata and S. cylindrica leaves extracts as an antibacterial against Pseudomonas aeruginosa

    Whika Febria Dewatisari, Laurentius Hartanto Nugroho, Endah Retnaningrum, Yekti Asih Purwestri

    Biodiversitas Journal of Biological Diversity