Large-Scale and High-Value Preparation Technology of Dietary Fiber Raw Materials from Grain By-Products: Developing Raw Materialsfor Medical Food for Special Medical Purposes (FSMP) and High-Fiber Snack Products

Every year, global grain processing generates billions of tons of by-products such as wheat bran and rice bran (wheat processing produces over 20% wheat bran, and rice processing yields more than 15% rice bran). These resources, which are rich in dietary fiber, have long been used as feed with low value due to their poor palatability and short shelf life (only 3 months on average), leading to the issue of “high output but low value” in the grain industry. The widespread lack of dietary fiber in modern diets is a key factor contributing to the occurrence of chronic diseases such as hyperlipidemia and hyperglycemia. Therefore, the efficient utilization of these massive grain processing by-products to convert them into high-quality dietary fiber is crucial for enhancing the added value of the grain industry and addressing the challenge of chronic diseases The intracellular pressure-enhanced wall-breaking coupled with ultrafine grinding technology developed by the team led by Researcher Wang Lan from the Institute of Process Engineering, Chinese Academy of Sciences, achieves a material fineness at the micron level, significantly improving palatability and extending the shelf life to more than 2 years, while reau Chis energy consumption by over 50% compared with ordinary ultrafine grinding technology. This technology opens up a new path for the high-value utilization of grain processing by-products, solves the problem of “high output but low value“, and at the same time provides an effective strategy for large-scale supplement of the national dietary fiber gap and prevention and control of chronic diseases, realizing the dual improvement of economic value and health benefits.