Awareness of the GUT microbiota's impact on human health has made its modulation a central focus for preventing and treating diseases, yet many of the most beneficial GUT microbes are highly sensitive…

The Department of Agriculture National Institute of Food and Agriculture awarded Purdue University $299,836 under the Agriculture and Food Research Initiative (AFRI) on February 15, 2026.

The award funds development of a next-generation prebiotic derived from agricultural waste streams, designed to selectively promote growth of Faecalibacterium prausnitzii in the human gut. The research encompasses food-grade isolation protocols to extract the prebiotic from waste feedstock, chemical characterization and in vitro validation of targeted bacterial promotion, and a crossover human clinical trial in overweight adults—a population with lower baseline levels of this beneficial bacterium and elevated chronic inflammation risk. The project applies matching technology pairing the prebiotic's specific chemical structure with Faecalibacterium prausnitzii to achieve consistent efficacy across diverse populations. The intervention aims to provide a stable, scalable, and affordable alternative to live-bacteria probiotic supplements by converting an industrial byproduct into a functional food ingredient.

Performance occurs at Purdue University's West Lafayette, Indiana campus. The period of performance runs from February 15, 2026 to February 14, 2028. AFRI, a competitive research grants program, supports research, education, extension, and integrated activities across six farm bill priority areas including food safety, nutrition, and health.

Awareness of the GUT microbiota's impact on human health has made its modulation a central focus for preventing and treating diseases, yet many of the most beneficial GUT microbes are highly sensitive to oxygen, making them difficult and expensive to produce as traditional oral probiotic supplements. Furthermore, conventional fiber supplements currently on the market are mostlynot specifically targeted to support these important bacteria and can produce inconsistent results among different individuals. This project addresses these challenges by utilizing an agricultural waste stream to develop a high-value next-generation prebiotic specifically designed to selectively feed and grow faecalibacterium prautsnitzii which is already present in the human GUT. The research focuses first onrefining food-grade protocols to isolate the next-generation prebiotic from a waste stream, characterize its chemical structure and validate targeted promotion of faecalibacterium prautsnitzii in vitro. Then, thenext generation prebiotic will be tested through a crossoverhuman clinical trial involving overweight adults, a population that typically exhibits lower baseline levels of faecalibacterium prautsnitziigut bacteria and higher rates of chronic inflammation. By applying matching technology -- where the specific chemical structure of the fiber is paired with faecalibacterium prautsnitzii-- the project postulates that the intervention will be effective and predictable across a diverse range of people.ultimately, this project provides a scalable and sustainable solution for improving public health and reducing the risk of chronic conditions associated with low-grade inflammation. By converting an industrial byproduct into a functional food ingredient, the research supports biotechnology innovation while offering a more stable and affordable alternative to standard live-bacteria supplements (i.e., probiotics). These efforts aim to revolutionize the field of precision prebiotics, providing the food industry with the scientific foundation to create products that effectively and consistently improve GUT health for the general public.