{"id":1795,"date":"2021-07-21T12:24:09","date_gmt":"2021-07-21T10:24:09","guid":{"rendered":"http:\/\/www.woodresearch.sk\/cms\/?p=1795"},"modified":"2021-08-02T10:56:13","modified_gmt":"2021-08-02T08:56:13","slug":"development-and-validation-of-an-analytical-method-for-condensed-tannin-extracts-obtained-from-the-bark-of-four-tree-species-using-hplc","status":"publish","type":"post","link":"https:\/\/www.woodresearch.sk\/cms\/development-and-validation-of-an-analytical-method-for-condensed-tannin-extracts-obtained-from-the-bark-of-four-tree-species-using-hplc\/","title":{"rendered":"Development and validation of an analytical method for condensed tannin extracts obtained from the bark of four tree species using HPLC"},"content":{"rendered":"\n<div class=\"wp-block-pdf-viewer-block-standard\" style=\"text-align:left\"><div class=\"uploaded-pdf\"><a href=\"https:\/\/www.woodresearch.sk\/cms\/wp-content\/uploads\/2021\/07\/Development-and-validation-of-an-analytical-method-for-condensed-tannin-extracts-obtained-from.pdf\" data-width=\"\" data-height=\"\"><\/a><\/div><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Herein, we evaluated the content of condensed tannins present in the bark of four tree species that are Quercus laurina Humb. &#038; Bonpl., Quercus crassifolia Humb. &#038; 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.<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67],"tags":[74,76,75],"release_year":[],"ppma_author":[68,69,70,71,72,73],"class_list":["post-1795","post","type-post","status-publish","format-standard","hentry","category-wood-research-volume-66-number-2-2021","tag-infrared-spectroscopy","tag-liquid-chromatography","tag-stiasny-number"],"featured_image_src":null,"author_info":{"display_name":"Maro\u0161 Kov\u00e1\u010d","author_link":"https:\/\/www.woodresearch.sk\/cms\/author\/kovacvupc-sk\/"},"authors":[{"term_id":68,"user_id":0,"is_guest":1,"slug":"faustino-ruiz-aquino","display_name":"Faustino Ruiz-Aquino","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":69,"user_id":0,"is_guest":1,"slug":"rossy-feria-reyes","display_name":"Rossy Feria-Reyes","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":70,"user_id":0,"is_guest":1,"slug":"jose-guadalupe-rutiaga-quinones","display_name":"Jos\u00e9 Guadalupe Rutiaga-Qui\u00f1ones","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":71,"user_id":0,"is_guest":1,"slug":"wenceslao-santiago-garcia","display_name":"Wenceslao Santiago-Garc\u00eda","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":72,"user_id":0,"is_guest":1,"slug":"mario-ernesto-suarez-mota","display_name":"Maario Ernesto Su\u00e1rez-Mota","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":73,"user_id":0,"is_guest":1,"slug":"hector-hugo-esquivel-reyes","display_name":"H\u00e9ctor Hugo Esquivel-Reyes","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/posts\/1795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/comments?post=1795"}],"version-history":[{"count":3,"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/posts\/1795\/revisions"}],"predecessor-version":[{"id":2186,"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/posts\/1795\/revisions\/2186"}],"wp:attachment":[{"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/media?parent=1795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/categories?post=1795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/tags?post=1795"},{"taxonomy":"release_year","embeddable":true,"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/release_year?post=1795"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.woodresearch.sk\/cms\/wp-json\/wp\/v2\/ppma_author?post=1795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}