Food Processing and Preservation Techniques to Enhance the Stability and Bioavailability of Antidiabetic Phytochemicals in Functional Foods

The increasing prevalence of diabetes has led to significant interest in developing functional foods containing bioactive phytochemicals that can help regulate blood sugar levels. Phytochemicals such as flavonoids, phenolic acids, alkaloids, and terpenoids have shown promising antidiabetic effects by improving insulin sensitivity, reducing blood glucose levels, and protecting pancreatic β-cells. However, the stability and bioavailability of these compounds often limit their therapeutic potential. This review explores various food processing and preservation techniques, including thermal processing, fermentation, and encapsulation, aimed at enhancing the stability, bioavailability, and efficacy of antidiabetic phytochemicals. The mechanisms through which these techniques impact the chemical structure, absorption, and metabolism of phytochemicals are discussed. Challenges and future research directions in advancing functional foods for diabetes management are also highlighted. By optimizing food processing methods, phytochemicals can be better incorporated into functional foods, providing a natural and sustainable approach to managing diabetes. Keywords: Antidiabetic phytochemicals, Functional foods, Bioavailability, Food processing, Preservation techniques.