Bioconversion technologies of crude glycerol to value added industrial products

• Crude glycerol is a byproduct of biodiesel industry.
• Crude glycerol is a valuable source for different valuable industrial products.
• Bioconversion of glycerol is a sustainable approach.
• This makes revenue to biodiesel industries and to overall economy of the biodiesel process.

Crude glycerol that is produced as the by-product from biodiesel, has to be effectively utilized to contribute to the viability of biodiesel. Crude glycerol in large amounts can pose a threat to the environment. Therefore, there is a need to convert this crude glycerol into valued added products using biotechnological processes, which brings new revenue to biodiesel producers. Crude glycerol can serve as a feedstock for biopolymers, poly unsaturated fatty acids, ethanol, hydrogen and n-butanol production and as a raw material for different value added industrial products. Hence, in this review we have presented different bioconversion technologies of glycerol to value added industrial products.