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Taylor and Francis Group, Bioengineered, 6(4), p. 355-362

DOI: 10.4161/bioe.23885

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Putting bugs to the blush: Metabolic engineering for phenylpropanoid-derived products in microorganisms

Journal article published in 2013 by Philana V. van Summeren-Wesenhagen, Jan Marienhagen ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Phenylpropanoids and phenylpropanoid-derived phenolic compounds such as flavonoids, anthocyanins, or stilbenes are secondary plant metabolites which serve as pigments and scent compounds or provide protection against environmental stress. Due to their antioxidant properties they also have been widely recognized for their benefit on human health. Traditionally, such compounds are extracted from their natural plant sources, but this approach is limited by low abundance and environmental, seasonal as well as regional variations in yield. Chemical synthesis is not a true alternative for the large scale production of more complex phenylpropanoid-derived substances since chemical synthesis becomes commercially unfeasible as the structural complexity of these plant natural products increases. In the last years, many biosynthetic pathways for plant natural products have been elucidated through the advancements in DNA sequencing technologies. In combination with new recombinant DNA technologies this technical progress opens the door toward the functional integration of full biosynthetic pathways for the synthesis of phenylpropanoids and phenylpropanoid-derived compounds in microorganisms. We believe that this approach has great potential to provide sufficient quantities of the desired plant natural product from cheap and renewable resources. This commentary highlights recent advances in the microbial production of phenylpropanoid-derived compounds with an emphasis on flavonoids and stilbenes.