This review aims at showcasing the advantage of BSG over other biomasses and covering the applications (Figure ) where large volumes of BSG could be used to produce higher value products such as polymers and composite materials. This could be performed by fractionation of its lignocellulosic matrix (Figure ), yielding various building blocks for polymer synthesis. After a meta-analysis of the composition and an overview of the of the available applications for BSG, a study of the reported works for the fractionation of its lignocellulosic matrix will be presented, with a stronger focus on monomer production. Then, the scope of building blocks obtainable from BSG will be investigated, followed by their use for polymer synthesis. The use of BSG with limited transformation as renewable filler for composite material application will be described.