A short review on catalytic hydrogenation of fructose into mannitol

The increase in greenhouse gas emissions caused by increased use of fossil fuels is one of the primary causes of climate change. Catalytic hydrogenation of fructose is seen as an alternative method for addressing this issue, as it converts biomass into useful compounds via the hydrogenation reaction. Unfortunately, catalyst inactivation has restricted its industrial application. The creation of novel catalysts with the potential to raise the hydrogenation reaction's efficiency has thus attracted a lot of attention. Most literature has revealed that Ru‐based and bimetallic Cu–Ni‐based catalysts possess high catalytic activity. The type of metal, the supporting material and the reaction conditions have a considerable impact on the performance of the catalysts. An overview of fructose hydrogenation over numerous heterogeneous catalysts is the goal of this review. © 2023 Society of Chemical Industry (SCI).