From Plants to Microbes: Bioprospecting Phytobiotics for Next-Generation Natural Products

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Antimicrobial Agents and Resistance".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1691

Editors


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Guest Editor
Department of Sustainable Agriculture, University of Patras, Agrinio, Greece
Interests: microbiome diversity; insect symbionts; fish pathogens; non-tuberculous mycobacteria; extremophiles; bioprospecting
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Sustainable Agriculture, University of Patras, Agrinio, Greece
Interests: microbiome diversity; insect symbionts; biopesticides; sustainable agriculture; sterile insect technique (SIT); fish pathogens

Special Issue Information

Dear Colleagues,

With growing concerns over the use of antibiotics and other synthetic chemicals, regarding the development of resistance and their persistence in the environment, phytobiotics represent promising alternatives in the search for sustainable and effective solutions to global challenges in plant and animal agriculture, aquaculture, and human healthcare. Bioactive compounds derived from plants offer a rich reservoir of natural products with antimicrobial, antioxidant, growth-promoting, and immunomodulatory properties that can serve as eco-friendly alternatives to synthetic chemicals. Phytobiotics are gaining attention in agriculture as biopesticides against harmful pathogens, while preserving beneficial soil microbes, enhancing crop resilience and productivity. Their use aligns with integrated pest management strategies and supports the transition toward organic and regenerative farming practices. They also show promising potential in human healthcare, as they have been used for combating multidrug-resistant (MDR) pathogens, a growing concern in clinical settings. Additionally, their antioxidant properties help mitigate oxidative stress, contributing to overall health and disease prevention.

Therefore, plant extracts offer natural scaffolds for developing new antimicrobial drugs. With continued research and responsible sourcing, these products could redefine how we manage pathogens, enhance agricultural practices, and develop next-generation therapeutics. This Special Issue aims to explore sustainable and effective solutions against microbial pathogens in both agricultural setups and human health. It will highlight methodologies for isolating and characterizing bioactive compounds, screening for antimicrobial or antioxidant activity, evaluating their toxicity, and developing new formulations and products. These efforts can be combined with innovative approaches in genomics, metagenomics, and metabolomics that may further accelerate the discovery of novel phytobiotics with targeted functions. In this context, the Special Issue welcomes reviews, original research articles, and short communications.

We look forward to your valuable contribution.

Dr. Panagiota Stathopoulou
Dr. Elias Asimakis
Guest Editors

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Keywords

  • phytobiotics
  • biopesticides
  • antimicrobial activity
  • antioxidant activity
  • plant extracts
  • antibiotic resistance
  • cytotoxicity
  • sustainable agriculture
  • sustainable aquaculture
  • environmentally friendly
  • bioprospecting

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Published Papers (1 paper)

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Research

16 pages, 2235 KB  
Article
The Effect of Variations in Temperature and Contact Time of Zingerone, [6]-Gingerol and Shogaol as Disinfectants on Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Candida albicans
by Fathy A. A. Hasan, Abdullahi Umar Ibrahim, Kaya Suer and Suleyman Asir
Microorganisms 2026, 14(3), 539; https://doi.org/10.3390/microorganisms14030539 - 26 Feb 2026
Viewed by 1358
Abstract
Rising microbial resistance to synthetic disinfectants has intensified the search for chemically synthesized natural alternatives, such as ginger-derived bioactive compounds. Several bioactive compounds, including Zingerone, Gingerols, and Shogaols, have been shown to possess antimicrobial activities. However, the antimicrobial efficacy of these compounds as [...] Read more.
Rising microbial resistance to synthetic disinfectants has intensified the search for chemically synthesized natural alternatives, such as ginger-derived bioactive compounds. Several bioactive compounds, including Zingerone, Gingerols, and Shogaols, have been shown to possess antimicrobial activities. However, the antimicrobial efficacy of these compounds as disinfectants at varying temperatures and contact times is poorly understood. Therefore, understanding the temperature- and time-dependent effects of contact is crucial for optimizing the potential application of these compounds in various antimicrobial strategies. In this study, the antimicrobial activities of three chemicals, 10% [6]-Gingerol, Zingerone, and Shogaols, were evaluated against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans. Furthermore, the variations in temperatures (5 °C, 25 °C, and 37 °C) and contact time (1, 5, and 60 min) were assessed based on CFU counts, log10 reductions, percent kill, and decimal reduction time. The findings of this study indicated that 10% Zingerone completely inactivated all tested organisms in 60 min at all temperatures. Although 10% [6]-Gingerol and Shogaol exhibited temperature- and time-dependent effects, they failed to completely inactivate the bacteria and fungi after 60 min. Furthermore, both temperature and contact time were shown to influence the efficacy of the tested disinfectants, providing a significant time- and temperature-dependent reduction in viable cells across all tested organisms. Full article
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