Analysis of the current situation of resource utilization of Baijiu distiller's grains

Baijiu distiller's grains are the main waste in the brewing process, with large and concentrated output, rich in nutrients, not easy to transport, easy to acidification and spoilage, and improper disposal is easy to cause resources waste and environmental pollution. Baijiu distiller's grains are regarded as high-quality biomass resources because they are rich in organic matter, and it is of great significance to carry out the rational resource utilization of Baijiu distiller's grains to protect the ecological environment and realize the green and low-carbon circular production of the Baijiu industry. In this paper, the source and composition of Baijiu distiller's grains were briefly introduced, the current resource utilization methods of Baijiu distiller's grains were summarized, and they were divided into feed, fertilizer, substrate, energy, high value-added product extraction and new material production according to the utilization methods. A comprehensive analysis of the existing utilization technologies, advantages and disadvantages and their limitations were conducted, and prospects were put forward, in order to provide reference for the research on the comprehensive resource utilization of Baijiu distiller's grains and the sustainable development of the brewing industry.