{"id":54465,"date":"2025-08-18T14:03:38","date_gmt":"2025-08-18T14:03:38","guid":{"rendered":"https:\/\/matis.is\/?p=54465"},"modified":"2026-01-21T09:26:48","modified_gmt":"2026-01-21T09:26:48","slug":"production-of-acetone-butanol-and-ethanol-by-fermentation-of-saccharina-latissima-cultivation-enzymatic-hydrolysis-inhibitor-removal-and-fermentation-2","status":"publish","type":"post","link":"https:\/\/matis.is\/en\/greinar\/production-of-acetone-butanol-and-ethanol-by-fermentation-of-saccharina-latissima-cultivation-enzymatic-hydrolysis-inhibitor-removal-and-fermentation-2\/","title":{"rendered":"Production of acetone, butanol, and ethanol by fermentation of Saccharina latissima: Cultivation, enzymatic hydrolysis, inhibitor removal, and fermentation"},"content":{"rendered":"<p>Seaweed (or macroalgae) produced sustainably at large scale opens opportunities as source of fuels, chemicals and food. The production does not directly compete with terrestrial food production and may make use of anthropogenic sources of\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/chemical-engineering\/carbon-dioxide\">carbon dioxide<\/a>\u00a0and nitrogen. Seaweed biomass can be transformed into a suitable substrate for fermentation using a biorefinery approach. In this study the entire process of biofuel production from seaweed is described: starting with cultivation and harvest, the seaweed is dried and cut, enzymatically hydrolysed, demineralized, detoxified, and finally fermented into acetone,\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/agricultural-and-biological-sciences\/butanol\">butanol<\/a>, and ethanol (ABE). Juvenile\u00a0<em><a href=\"https:\/\/www.sciencedirect.com\/topics\/agricultural-and-biological-sciences\/saccharina-latissima\">Saccharina latissima<\/a><\/em>\u00a0was directly seeded on AlgaeTex\u00ae nets and cultivated in the North East Atlantic off the west coast of Scotland for 6\u00a0months. Sun dried seaweed was hydrolysed with different enzymes, looking for optimal glucose release, solid\/liquid ratio, and enzyme load. Using Cellic\u00ae\u00a0<em>CTec2<\/em>\u00a0in combination with\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/chemical-engineering\/alginate\">alginate<\/a>\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/pharmacology-toxicology-and-pharmaceutical-science\/lyase\">lyases<\/a>, approximately 80% of available glucose was released. The hydrolysis was scaled up to 100\u00a0L, using only Cellic\u00ae\u00a0<em>CTec2<\/em>. Part of the\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/agricultural-and-biological-sciences\/hydrolysate\">hydrolyzate<\/a>\u00a0was demineralized using ion-exclusion\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/chemical-engineering\/chromatography\">chromatography<\/a>, removing over 90% of minerals while recovering 92% of glucose and\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/agricultural-and-biological-sciences\/mannitol\">mannitol<\/a>. A fraction of the demineralized hydrolysate was additionally detoxified using a hydrophobic resin to remove hydrophobic components to a concentration below\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/agricultural-and-biological-sciences\/detection-limit\">detection limit<\/a>. The three hydrolysates (untreated, demineralized, and demineralized followed by detoxification) were used as substrate for\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/agricultural-and-biological-sciences\/ethanol-production\">ABE production<\/a>\u00a0by a newly developed strain of\u00a0<em><a href=\"https:\/\/www.sciencedirect.com\/topics\/food-science\/clostridium\">Clostridium<\/a>\u00a0acetobutylicum<\/em>\u00a0adapted to grow on\u00a0<em>S<\/em>.\u00a0<em>latissima<\/em>\u00a0hydrolyzate.\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/pharmacology-toxicology-and-pharmaceutical-science\/demineralization\">Demineralization<\/a>\u00a0reduced the lag phase of fermentation from 72\u00a0h (untreated) to 24\u201348\u00a0h. Further\u00a0<a href=\"https:\/\/www.sciencedirect.com\/topics\/pharmacology-toxicology-and-pharmaceutical-science\/detoxication\">detoxification<\/a>\u00a0of the hydrolysate led to immediate fermentation, resulting in a yield of 0.23\u00a0\u00b1\u00a00.02\u00a0g<sub>ABE<\/sub>\/g<sub>sugar<\/sub>\u00a0similar to control fermentation in control medium (0.19\u00a0g<sub>ABE<\/sub>\/g<sub>sugar<\/sub>).<\/p>\n\n\n\n<p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S2211926421004379\">Link to article.<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Seaweed (or macroalgae) produced sustainably at large scale opens opportunities as source of fuels, chemicals and food. The production does [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","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-54465","post","type-post","status-publish","format-standard","hentry","category-greinar"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Production of acetone, butanol, and ethanol by fermentation of\u00a0Saccharina latissima: Cultivation, enzymatic hydrolysis, inhibitor removal, and 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\/production-of-acetone-butanol-and-ethanol-by-fermentation-of-saccharina-latissima-cultivation-enzymatic-hydrolysis-inhibitor-removal-and-fermentation-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Production of acetone, butanol, and ethanol by fermentation of\u00a0Saccharina latissima: Cultivation, enzymatic hydrolysis, inhibitor removal, and fermentation - Mat\u00eds\" \/>\n<meta property=\"og:description\" content=\"Seaweed (or macroalgae) produced sustainably at large scale opens opportunities as source of fuels, chemicals and food. 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