Author:
Aquino Faustino Ruiz,Reyes Rossy Feria,Quiñones José Guadalupe Rutiaga,García Wenceslao Santiago,Mota Mario Ernesto Suárez,Reyes Héctor Hugo Esquivel
Abstract
Herein, we evaluated the content of condensed tannins present in the bark of four tree species that are Quercus laurina Humb. & Bonpl., Quercus crassifolia Humb. & Bonpl., Arbutus xalapensis Kunth, and Prunus serotina Ehrn. An analytical method using high-performance liquid chromatography (HPLC) for condensed tannin extracts was developed and validated. Also,
the aqueous extracts were analyzed by Fourier transform infrared spectroscopy (FTIR). Based on the Stiasny number, A. xalapensis, and Q. laurina represent an important source of condensed tannins, which may be subject to exploitation. Using infrared spectroscopy, it was observed that tannins do not show an important signal of carbonyl groups (aromatic esters) with respect
to high purity catechin. Furthermore, the band of the hydroxyl group is less pronounced
in tannins, because various hydroxyl are interacting with each other. However, it can be seen that the method of extraction of wood tannins developed in this work, presents satisfactory results.
Publisher
Pulp and Paper Research Institute
Subject
General Materials Science,Forestry
Cited by
4 articles.
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