Research Progress on the Application of Probiotics in Fermented Foods

With the increasing demand for nutritional quality in food, making food more nutritious and healthy has become a popular research topic. This paper introduces the basic concepts of probiotics and fermented foods and their benefits to human health. It focuses on the application of probiotics in fermented foods such as dairy products and fruit and vegetable juices. Research shows that probiotics significantly improve food flavor, extend shelf life, and enhance nutritional value. Additionally, the challenges of probiotic applications, such as strain stability, activity retention, and industrialization bottlenecks, are analyzed. Future research directions, including the development of novel probiotics, combined strain applications, and optimized fermentation processes, are proposed to provide theoretical support for the development of probiotic-fermented foods.