Fernandez-Lorente, GloriaBolívar Bolívar, Juan ManuelRocha Martín, JavierCuriel, JoseMuñoz, RosarioRivas, Blanca de lasCarrascosa, AlfonsoGuisan, Jose2024-02-052024-02-052011Fernandez-Lorente, Gloria, et al. «Synthesis of Propyl Gallate by Transesterification of Tannic Acid in Aqueous Media Catalysed by Immobilised Derivatives of Tannase from Lactobacillus Plantarum». Food Chemistry, vol. 128, n.o 1, septiembre de 2011, pp. 214-17. https://doi.org/10.1016/j.foodchem.2011.02.057.0308-814610.1016/j.foodchem.2011.02.057https://hdl.handle.net/20.500.14352/98744Immobilised derivatives of tannase from Lactobacillus plantarum were able to catalyse the transesterification of tannic acid by using moderate concentrations of 1-propanol in aqueous media. Transesterification of tannic acid was very similar to transesterification of methyl gallate. The synthetic yield depended on the pH and concentration of 1-propanol, although it did not vary much when using 30% or 50% 1-propanol. Synthetic yields of 45% were obtained with 30% of 1-propanol at pH 5.0. The product was chromatographically pure, and the reaction by-product was 55% pure gallic acid. On the other hand, immobilised tannase was fairly stable under optimal reaction conditions.engjournal articlehttps://doi.org/10.1016/j.foodchem.2011.02.057restricted accessBioquímica (Química)Ingeniería química2302 Bioquímica2403 Bioquímica