Principles of Glycerol-Based Polyhydroxyalkanoate Production
Applied Food Biotechnology,
Vol. 2 No. 4 (2015),
7 October 2015,
Page 3-10
https://doi.org/10.22037/afb.v2i4.8270
The article addresses the contemporary quest for inexpensive carbon feedstocks to be used for cost efficient biomediated polymer production; such polymers can potentially be applied in the food technology sector, mainly for packaging purposes. In particular, the work shines a light on crude glycerol, a surplus stream of the globally tremendously emerging biodiesel industry. Crude glycerol can be upgraded to a convenient substrate for microbial polyhydroxyalkanoate production without interfering with food- or feed production. The article covers the challenges of using crude glycerol as a feedstock in biotechnology, and gives an insight into the metabolic background of glycerol-based polyhydroxyalkanoate production. Particularities of glycerol-based polyhydroxyalkanoate biosynthesis, such as the characteristic formation of low-molecular mass polyesters, and the resulting impact on polymer processing, are also discussed in this review.