RT Journal Article
T1 Synthesis of propyl gallate by transesterification of tannic acid in aqueous media catalysed by immobilised derivatives of tannase from Lactobacillus plantarum
A1 Fernandez-Lorente, Gloria
A1 Bolívar Bolívar, Juan Manuel
A1 Rocha Martín, Javier
A1 Curiel, Jose
A1 Muñoz, Rosario
A1 Rivas, Blanca de las
A1 Carrascosa, Alfonso
A1 Guisan, Jose
AB Immobilised 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.
PB Elsevier
SN 0308-8146
YR 2011
FD 2011
LK https://hdl.handle.net/20.500.14352/98744
UL https://hdl.handle.net/20.500.14352/98744
LA eng
NO Fernandez-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.
DS Docta Complutense
RD 12 abr 2025