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Fig. 1 | Biotechnology for Biofuels

Fig. 1

From: Toward glycerol biorefinery: metabolic engineering for the production of biofuels and chemicals from glycerol

Fig. 1

Metabolic pathways of glycerol for the production of various products. Production of diols, amino acids, organic acids, and biofuels via the catabolic pathway of glycerol are illustrated with different colors: diols, blue; amino acids, green; organic acids, yellow; biofuels, orange. In some microorganisms, glycerol can be dehydrated to 3-hydroxypropionaldehyde (3-HPA) by glycerol dehydratase. 3-HPA can be converted to 1,3-propanediol by alcohol dehydrogenase or 3-hydroxypropionic acid by aldehyde dehydrogenase. Glycerol can also enter the central metabolic pathway via two routes: (1) glycerol kinase and glycerol 3-phosphate dehydrogenase; (2) glycerol dehydrogenase and dihydroxyacetone kinase

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