Department of Micro, Nano and Bioprocess Engineering, Faculty of Chemistry, Wroclaw University of Science and Technology, Norwida 4/6, 50-373 Wroclaw, Poland.
Department of Mechanics, Machines, Devices and Energy Processes, Faculty of Mechanical and Power Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-373 Wroclaw, Poland.
Biomolecules. 2020 Dec 13;10(12):1669. doi: 10.3390/biom10121669.
The brewing sector is a significant part of the global food industry. Breweries produce large quantities of wastes, including wastewater and brewer's spent grains. Currently, upcycling of food industry by-products is one of the principles of the circular economy. The aim of this review is to present possible ways to utilize common solid by-product from the brewing sector. Brewer's spent grains (BSG) is a good material for sorption and processing into activated carbon. Another way to utilize spent grains is to use them as a fuel in raw form, after hydrothermal carbonization or as a feedstock for anaerobic digestion. The mentioned by-products may also be utilized in animal and human nutrition. Moreover, BSG is a waste rich in various substances that may be extracted for further utilization. It is likely that, in upcoming years, brewer's spent grains will not be considered as a by-product, but as a desirable raw material for various branches of industry.
酿造业是全球食品工业的重要组成部分。啤酒厂会产生大量的废物，包括废水和啤酒糟。目前，食品工业副产品的再利用是循环经济的原则之一。本综述的目的是介绍利用酿造行业常见的固体副产品的可能途径。啤酒糟（BSG）是一种很好的吸附材料，也可以加工成活性炭。另一种利用啤酒糟的方法是将其未经热解水碳化或厌氧消化处理直接作为燃料使用。上述副产品也可用于动物和人类营养。此外，啤酒糟是一种富含各种物质的废物，可从中提取用于进一步利用。未来几年，啤酒糟可能不再被视为副产品，而是各种工业领域的理想原料。
