Vanillin–Bioconversion and Bioengineering of the Most Popular Plant Flavor and Its De Novo Biosynthesis in the Vanilla Orchid Nethaji J. Gallage, Birger Lindberg Møller Molecular Plant Volume 8, Issue 1, Pages 40-57 (January 2015) DOI: 10.1016/j.molp.2014.11.008 Copyright © 2015 The Author Terms and Conditions
Figure 1 Chemical Structure of Vanillin (4-Hydroxy-3-Methoxybenzaldehyde). Molecular Plant 2015 8, 40-57DOI: (10.1016/j.molp.2014.11.008) Copyright © 2015 The Author Terms and Conditions
Figure 2 Different Routes to Natural Vanillin that Are Available or Soon to Be Available on the Market. Molecular Plant 2015 8, 40-57DOI: (10.1016/j.molp.2014.11.008) Copyright © 2015 The Author Terms and Conditions
Figure 3 Possible Bioconversion Routes of Ferulic Acid to Vanillin (A) CoA-independent conversion of ferulic acid to vanillin via a retro-aldol reaction. (B) CoA-dependent conversion of ferulic acid to vanillin via a retro-aldol reaction. (C) CoA-dependent β-oxidation of feruloyl-CoA into vanillic acid. (D) Non-oxidative decarboxylation of ferulic acid to 4-vinylguaiacol. No evidence for conversion of 4-vinylguaiacol into vanillin has been obtained. (E) Conversion of ferulic acid into vanillin involving a reducing step. Molecular Plant 2015 8, 40-57DOI: (10.1016/j.molp.2014.11.008) Copyright © 2015 The Author Terms and Conditions
Figure 4 The CoA-Dependent Catabolism of Ferulic Acid Via Vanillin in Amycolatopsis sp. 39116. Molecular Plant 2015 8, 40-57DOI: (10.1016/j.molp.2014.11.008) Copyright © 2015 The Author Terms and Conditions
Figure 5 Eugenol Degradation Pathway in Pseudomonas. Molecular Plant 2015 8, 40-57DOI: (10.1016/j.molp.2014.11.008) Copyright © 2015 The Author Terms and Conditions
Figure 6 Engineered De Novo Vanillin Biosynthesis from Glucose in the Yeasts S. cerevisiae and Schizosaccharomyces pombe. Molecular Plant 2015 8, 40-57DOI: (10.1016/j.molp.2014.11.008) Copyright © 2015 The Author Terms and Conditions