<\/p>\n\n\n\n
Allala F. 1 <\/sup><\/em>*, Mechri Sondes, Chehr\u00ee Ryma, Hadjari Ouiam, Hammdoud Ikhlas,Bouacem K. 1, 2<\/sup><\/em>, Jaouadi B. 3<\/sup><\/em>, Bouanane A. 1<\/sup><\/em>& Hernandez J. E.<\/strong>4<\/sup><\/em><\/p>\n\n\n\n 1 <\/sup>Laboratoire de Biologie Cellulaire et Mol\u00e9culaire (LBCM), Equipe de Microbiologie, Facult\u00e9 des Sciences Biologiques, Universit\u00e9 des Sciences et de la Technologie Houari Boumediene (USTHB), Alger, Alg\u00e9rie.<\/p>\n\n\n\n 2 <\/sup>D\u00e9partement de Biochimie-Microbiologie, Facult\u00e9 des Sciences Biologiques et des Sciences Agronomiques (FSBSA), Universit\u00e9 Mouloud Mammeri de Tizi Ouzou (UMMTO), Tizi Ouzou, Alg\u00e9rie.<\/p>\n\n\n\n 3 <\/sup>Laboratoire de Biotechnologie Microbienne et d\u2019Ing\u00e9nierie des Enzymes (LBMIE), Centre de Biotechnologie de Sfax (CBS), Universit\u00e9 de Sfax, Sfax, Tunisie<\/p>\n\n\n\n 4 <\/sup>Bioinspired Engineering Research Group (BIERG), School of Engineering, Technology and Design, Faculty of Science, Engineering and Social Sciences, Canterbury Christ Church University, Canterbury, Kent, UK.<\/p>\n\n\n\n * <\/strong>: fawzi.allala_fsb@usthb.edu.dz<\/p>\n\n\n\n The process of microbially induced carbonate precipitation (MICP) is revolutionizing construction and geotechnical engineering. By harnessing the ability of microorganisms to induce calcium carbonate formation, it is possible to sustainably and environmentally produce construction materials and other substances of interest. Ureolytic bacteria, such as Bacillus pasteurii<\/em>, play a key role in biocementation. Few studies have identified new bacteria capable of performing MICP. This work aims to select urease-producing strains from water and soil samples collected from extreme Algerian ecosystems. A total of 34 different bacterial strains were isolated at 47\u00b0C. A thermophilic test confirmed the growth of 11 strains at 55\u00b0C. Screening on UNB medium was conducted to select urease-producing bacteria. After a 3-day incubation, calcite crystals formed in the UNB medium, confirmed by microscopy. An application test was conducted to select microbial strains based on their ability to solidify construction sand through biocementation. The bacteria isolated and screened from this work promise to significantly advance MICP research.<\/p>\n\n\n\n Keywords<\/strong> : MICP, Bio-Cementation, Extremophiles, Ureolytic Bacteria, Calcite<\/p>\n","protected":false},"excerpt":{"rendered":" Allala F. 1 *, Mechri Sondes, Chehr\u00ee Ryma, Hadjari Ouiam, Hammdoud Ikhlas,Bouacem K. 1, 2, Jaouadi B. 3, Bouanane A. 1& Hernandez J. E.4 1 Laboratoire de Biologie Cellulaire et Mol\u00e9culaire (LBCM), Equipe de Microbiologie, Facult\u00e9 des Sciences Biologiques, Universit\u00e9 des Sciences et de la Technologie Houari Boumediene (USTHB), Alger, Alg\u00e9rie. 2 D\u00e9partement de Biochimie-Microbiologie, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-4975","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6rw5S-1if","jetpack-related-posts":[{"id":1978,"url":"http:\/\/www.ernestohernandez.org\/?p=1978","url_meta":{"origin":4975,"position":0},"title":"Bioenergy from an automatic small facility","author":"Ernesto Hernandez","date":"October 6, 2020","format":false,"excerpt":"Converting waste into bioenergy is a hot topic around the world. Several are the reasons for doing this, ranging from adding value to waste, reducing carbon footprint and air pollutants while producing valuable products like fertilisers and more. New research unveils the evaluation of the performance on food waste conversion\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"http:\/\/www.ernestohernandez.org\/?cat=12"},"img":{"alt_text":"Automatic small digester","src":"https:\/\/i0.wp.com\/www.ernestohernandez.org\/wp-content\/uploads\/2018\/05\/34079089490_afff700c36_o.jpg?fit=1200%2C900&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.ernestohernandez.org\/wp-content\/uploads\/2018\/05\/34079089490_afff700c36_o.jpg?fit=1200%2C900&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.ernestohernandez.org\/wp-content\/uploads\/2018\/05\/34079089490_afff700c36_o.jpg?fit=1200%2C900&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.ernestohernandez.org\/wp-content\/uploads\/2018\/05\/34079089490_afff700c36_o.jpg?fit=1200%2C900&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.ernestohernandez.org\/wp-content\/uploads\/2018\/05\/34079089490_afff700c36_o.jpg?fit=1200%2C900&resize=1050%2C600 3x"},"classes":[]}],"_links":{"self":[{"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=\/wp\/v2\/posts\/4975","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4975"}],"version-history":[{"count":1,"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=\/wp\/v2\/posts\/4975\/revisions"}],"predecessor-version":[{"id":4976,"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=\/wp\/v2\/posts\/4975\/revisions\/4976"}],"wp:attachment":[{"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4975"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ernestohernandez.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}