{"id":122448,"date":"2013-06-24T18:47:27","date_gmt":"2013-06-24T21:47:27","guid":{"rendered":"http:\/\/revistapesquisa.fapesp.br\/?p=122448"},"modified":"2013-09-09T16:13:30","modified_gmt":"2013-09-09T19:13:30","slug":"wheres-the-lignin-in-sugarcane-bagasse","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/wheres-the-lignin-in-sugarcane-bagasse\/","title":{"rendered":"Where\u2019s the lignin in sugarcane bagasse?"},"content":{"rendered":"<div id=\"attachment_122449\" style=\"max-width: 231px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-122449 \" alt=\"Sugarcane: more precise measurements to locate lignin \" src=\"http:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2013\/06\/014-017_Tecnociencia_207-7-221x300.jpg\" width=\"221\" height=\"300\" srcset=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2013\/06\/014-017_Tecnociencia_207-7-221x300.jpg 221w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2013\/06\/014-017_Tecnociencia_207-7.jpg 290w\" sizes=\"auto, (max-width: 221px) 100vw, 221px\" \/><p class=\"wp-caption-text\"><span class=\"media-credits-inline\">L\u00e9o Ramos<\/span>Sugarcane: more precise measurements to locate lignin<span class=\"media-credits\">L\u00e9o Ramos<\/span><\/p><\/div>\n<p>With the aid of confocal optical microscopy, a group of researchers with the S\u00e3o Carlos Institute of Physics (IFSC), at the University of S\u00e3o Paulo (USP), has successfully identified minimum concentrations of lignin in sugarcane bagasse, which is valuable information when it comes to converting biomass into cellulosic ethanol. One of the steps in the chemical pretreatment of bagasse used to produce second-generation ethanol is the removal of lignin, which increases the rigidity of the plant cell wall and interferes with access to the cellulose, thereby hampering the breakdown of sugars. \u201cWe applied fluorescent confocal microscopy to map the exact place where the lignin is located in the wall of the sugarcane fiber,\u201d explains Francisco Eduardo Gontijo Guimar\u00e3es, a researcher involved in the project led by Igor Polikarpov, of IFSC-USP. They believe this will make it possible to assess whether the chemical pretreatments used in the conversion process are effective. \u201cMost of the methods now in use can measure lignin concentrations no lower than 9%, while we\u2019ve already reached 1%,\u201d Guimar\u00e3es underscores. Using confocal microscopy, Polikarpov\u2019s team has also measured single cell fibers; this represents an advance over current methods, which measure the group of fibers.<\/p>\n","protected":false},"excerpt":{"rendered":"Where\u2019s the lignin in sugarcane bagasse? ","protected":false},"author":475,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[168],"tags":[153,207,227],"coauthors":[437],"class_list":["post-122448","post","type-post","status-publish","format-standard","hentry","category-technoscience","tag-agronomy","tag-bioenergy","tag-energy"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/122448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/475"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=122448"}],"version-history":[{"count":0,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/122448\/revisions"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=122448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=122448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=122448"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=122448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}