[vc_row][vc_column][vc_custom_heading text=”August 31, 2022″ font_container=”tag:h2|font_size:18|text_align:left” google_fonts=”font_family:Roboto%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C500%2C500italic%2C700%2C700italic%2C900%2C900italic|font_style:100%20light%20regular%3A100%3Anormal”][vc_column_text]<\/p>\n
Bioactive protection, renewable, biodegradable and relatively inexpensive.<\/p>\n
[\/vc_column_text][vc_separator][vc_column_text]\u00a0[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/2″][vc_single_image image=”4497″ img_size=”full” onclick=”custom_link” link=”https:\/\/pubs.acs.org\/doi\/10.1021\/acssuschemeng.9b07732″][\/vc_column][vc_column width=”1\/2″][vc_column_text]Wood is susceptible to deterioration of various organisms, such as fungi, termites, and marine borers. To extend the service life of wood products, metal-based preservatives and synthetic organic chemicals have been commonly used to treat wood. Despite their high effectiveness against wood deteriorating agents, there are rising concerns on the potential toxicity of these chemicals to aquatic organisms and the disposal issues of chemically treated wood. These drawbacks have necessitated the need of developing new wood preservative formulations that are not only effective against wood decay organisms but also less harmful to the environment. One of the most promising solutions is the use of natural preservatives for wood protection, such as plant extracts extracts and natural antimicrobial polymers. In particular, a lot of attention has been paid to chitosan for wood<\/strong> Bioactive protection, renewable, biodegradable and relatively inexpensive.<\/p>\n “Fungal resistance and leachability of genipin-crosslinked chitosan [\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator][vc_custom_heading text=”Chitosan for Wood” font_container=”tag:h5|font_size:32|text_align:left” google_fonts=”font_family:Roboto%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C500%2C500italic%2C700%2C700italic%2C900%2C900italic|font_style:100%20light%20regular%3A100%3Anormal”][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/2″][vc_tta_accordion][vc_tta_section title=”Abstract” tab_id=”1590665707334-93f7afd7-88b4fe32-bb95307d-c53b”][vc_column_text]Chitosan (C) is a natural antimicrobial compound that has been widely explored for wood protection, but its application is limited by its high leachability. Genipin is a biobased crosslinking agent that can crosslink with chitosan under mild conditions. This study aims at examining the decay resistance and leachability of genipin-crosslinked chitosan (GC) treated wood against common wood-decaying fungi. GC formation was confirmed using Fourier transform infrared spectroscopy and Thermogravimetric analysis. The antifungal efficacy of GC against two brown-rot fungi, Gloeophyllum trabeum (G.t.) and Rhodonia placenta (R.p.) and two white-rot fungi, Trametes versicolor (T.v.) and Irpex lacteus (I.l.) was first determined using malt-gar as substrate, which revealed that GC exhibited similar efficacy as C treatments in inhibiting the growth of all fungi studied.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=”Results” tab_id=”1585137171451-7c8f3b8c-d48e093e-a1f2b2f4-5bae8012-22c74369-5ec0fe32-bb95307d-c53b”][vc_column_text]Micrographs of light and fluorescence microscopy showed changes in fungi morphology and nuclei deformation due to the effect of GC. GC-treated wood samples show an increased retention and mass gain as the function of treating concentrations, which were as high as 21 kg\/m2 and 3.6%, respectively. However, upon leaching test, the mass gain of 3% GC treated softwood and hardwood was reduced to 1.6% and 0.9%, respectively, indicating cross-linking chitosan with genipin did not reduce the leaching rate of chitosan. In terms of durability testing, GC treated wood samples showed significantly lower mass loss ranging from 11 to 15% than those of the control groups of \u226530% regardless of the leaching test.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][vc_column width=”1\/2″][vc_images_carousel images=”4499,3094,4498″ img_size=”full” speed=”3000″ autoplay=”yes” wrap=”yes”][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator][vc_column_text]\u00a0[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/2″][vc_single_image image=”2901″ img_size=”full” add_caption=”yes” onclick=”custom_link” css_animation=”left-to-right” link=”https:\/\/bormawachs.com\/”][\/vc_column][vc_column width=”1\/2″][vc_column_text]<\/p>\n HOME<\/a> > FILOSOFIA<\/a> > PLANET GREEN<\/a> > PLANET GREEN 01\/2022 > MATERIA<\/a><\/p>\n [\/vc_column_text][\/vc_column][\/vc_row]<\/p>","protected":false},"excerpt":{"rendered":" [vc_row][vc_column][vc_custom_heading text=”August 31, 2022″ font_container=”tag:h2|font_size:18|text_align:left” google_fonts=”font_family:Roboto%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C500%2C500italic%2C700%2C700italic%2C900%2C900italic|font_style:100%20light%20regular%3A100%3Anormal”][vc_column_text] Bioactive protection, renewable, biodegradable and relatively inexpensive. [\/vc_column_text][vc_separator][vc_column_text]\u00a0[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/2″][vc_single_image image=”4497″ img_size=”full” onclick=”custom_link” link=”https:\/\/pubs.acs.org\/doi\/10.1021\/acssuschemeng.9b07732″][\/vc_column][vc_column width=”1\/2″][vc_column_text]Wood is susceptible to deterioration of various organisms, such as fungi,<\/p>\n","protected":false},"author":1,"featured_media":4501,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,1,26],"tags":[],"class_list":["post-4496","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-circular-bioeconomy","category-eventi","category-planet-green"],"_links":{"self":[{"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/posts\/4496","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/comments?post=4496"}],"version-history":[{"count":13,"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/posts\/4496\/revisions"}],"predecessor-version":[{"id":4514,"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/posts\/4496\/revisions\/4514"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/media\/4501"}],"wp:attachment":[{"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/media?parent=4496"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/categories?post=4496"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/academy.bormawachs.com\/en\/wp-json\/wp\/v2\/tags?post=4496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\ntreated wood”<\/strong><\/a>
\nCourage Alorbu, Lili Cai,
\nInternational Biodeterioration & Biodegradation,\u00a0Volume 169,\u00a02022,
\n105378,\u00a0ISSN 0964-8305,
\nhttps:\/\/doi.org\/10.1016\/j.ibiod.2022.105378
\n(https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0964830522000063)<\/p>\n