{"id":50973,"date":"2023-10-13T13:47:13","date_gmt":"2023-10-13T13:47:13","guid":{"rendered":"https:\/\/matis.is\/?p=50973"},"modified":"2023-10-13T13:47:14","modified_gmt":"2023-10-13T13:47:14","slug":"evaluation-of-laminaria-digitata-hydrolysate-for-the-production-of-bioethanol-and-butanol-by-fermentation","status":"publish","type":"post","link":"https:\/\/matis.is\/en\/greinar\/evaluation-of-laminaria-digitata-hydrolysate-for-the-production-of-bioethanol-and-butanol-by-fermentation\/","title":{"rendered":"Evaluation of Laminaria Digitata Hydrolysate for the Production of Bioethanol and Butanol by Fermentation"},"content":{"rendered":"<p>Seaweeds (macroalgae) are gaining attention as potential sustainable feedstock for the production of fuels and chemicals. This comparative study focuses on the characterization of the microbial production of alcohols from fermentable carbohydrates in the hydrolysate of the macroalgae\u00a0<em>Digital Laminaria<\/em>\u00a0as raw material. The potential of a hydrolysate as a carbon source for the production of selected alcohols was tested, using three physiologically different fermentative microbes, in two main types of processes. For the production of ethanol,\u00a0<em>Saccharomyces cerevisiae<\/em>\u00a0was used as a benchmark microorganism and compared with the strictly anaerobic thermophile\u00a0<em>Thermoanaerobacterium<\/em>\u00a0strain AK17. For mixed production of acetone\/isopropanol, butanol, and ethanol (A\/IBE), three strictly anaerobic\u00a0<em>Clostridium<\/em>\u00a0strains were compared. All strains grew well on the hydrolysate, and toxicity constraints were not observed, but fermentation performance and product profiles were shown to be both condition- and strain-specific.\u00a0<em>S. cerevisiae<\/em>\u00a0utilized only glucose for ethanol formation, while strain AK17 utilized glucose, mannitol, and parts of the glucan oligosaccharides. The clostridia strains tested showed different nutrient requirements, and were able to utilize glucan, mannitol, and organic acids in the hydrolysate. The novelty of this study embodies the application of different inoculates for fermenting a common brown seaweed found in the northern Atlantic Ocean. It provides important information on the fermentation properties of different microorganisms and pinpoints the value of carbon source utilization when selecting microbes for efficient bioconversion into biofuel and chemical products of interest.<\/p>","protected":false},"excerpt":{"rendered":"<p>Seaweeds (macroalgae) are gaining attention as potential sustainable feedstock for the production of fuels and chemicals. This comparative study focuses [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"template-greinar.php","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2011],"tags":[],"class_list":["post-50973","post","type-post","status-publish","format-standard","hentry","category-greinar"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Evaluation of Laminaria Digitata Hydrolysate for the Production of Bioethanol and Butanol by Fermentation - Mat\u00eds<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/matis.is\/en\/greinar\/evaluation-of-laminaria-digitata-hydrolysate-for-the-production-of-bioethanol-and-butanol-by-fermentation\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Evaluation of Laminaria Digitata Hydrolysate for the Production of Bioethanol and Butanol by Fermentation - Mat\u00eds\" \/>\n<meta property=\"og:description\" content=\"Seaweeds (macroalgae) are gaining attention as potential sustainable feedstock for the production of fuels and chemicals. 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This comparative study focuses [&hellip;]","_links":{"self":[{"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/posts\/50973","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/comments?post=50973"}],"version-history":[{"count":2,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/posts\/50973\/revisions"}],"predecessor-version":[{"id":50975,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/posts\/50973\/revisions\/50975"}],"wp:attachment":[{"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/media?parent=50973"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/categories?post=50973"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/tags?post=50973"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}