Natural mushroom-based antimicrobials for extending condiment shelf life
Research explores natural mushroom-based antimicrobials to extend the shelf life of acidic condiments. The approach uses Tremella mushroom extracts to inhibit Z. bailli as a potential clean-label alternative to synthetic preservatives. Efficacy is evaluated in multiple condiment matrices using commercially available natural antimicrobials, with microbial monitoring over time and sensory testing on the most effective treatments.
Overview
Research investigates mushroom-based antimicrobials, specifically from Tremella mushrooms, to inhibit Z. bailli, a common spoilage microorganism in acidic condiments. The goal is to develop natural alternatives to synthetic preservatives aligned with clean-label and natural-ingredient expectations.
Technical specifications
The study evaluates the efficacy of two commercially available natural antimicrobials, Chiber (CH) by Chinova Bioworks and Nagardo (NG) by Lanxess, in five condiment types: mayonnaise, ketchup, ranch, relish, and honey mustard. The condiments are inoculated with Z. bailli and treated with varying concentrations of CH and NG, both individually and in combination. Potassium sorbate and sodium benzoate serve as controls. Effectiveness is assessed by monitoring microbial counts every two weeks at 20ºC for six months, with spoilage defined as counts exceeding 6 log CFU/g. Additionally, a triangle test sensory study will be conducted on the most effective treatments.
Technology readiness level
This research is currently at Technology Readiness Level 4, indicating that the concept has been validated in a laboratory environment and is ready for further validation in real-world conditions.
About Cornell University
Cornell University is a comprehensive private, land-grant research university with campuses in Ithaca and New York City, combining significant scale with cross-disciplinary breadth. Industry connects through open-access user facilities and prototyping labs, pilot-scale testbeds, and a research and technology park that provide pathways from discovery to demonstration. A statewide extension network and integration with a major hospital system enable real-world deployment, while a graduate campus embedded in New York City’s tech corridor provides direct access to startups, venture investors, and corporate R&D teams. Research is supported by competitive federal funding from agencies such as the National Science Foundation, National Institutes of Health, the Department of Energy, and the U.S. Department of Agriculture. A dedicated technology transfer office streamlines IP management, licensing, startup formation, and corporate partnerships across campuses.
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