[{"command":"settings","settings":{"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"user":{"uid":0,"permissionsHash":"d9587e6f410d2e7f476e3da6cb10a457c78ab82347f962bf83d9020620f901dd"}},"merge":true},{"command":"add_css","data":[{"rel":"stylesheet","media":"all","href":"\/modules\/contrib\/addtocal\/addtocal.css?t2408i"},{"rel":"stylesheet","media":"all","href":"\/themes\/custom\/cest2025\/css\/components\/node.css?t2408i"}]},{"command":"add_js","selector":"body","data":[{"src":"\/core\/assets\/vendor\/jquery\/jquery.min.js?v=3.7.1"},{"src":"\/core\/assets\/vendor\/once\/once.min.js?v=1.0.1"},{"src":"\/core\/misc\/drupalSettingsLoader.js?v=10.5.1"},{"src":"\/core\/misc\/drupal.js?v=10.5.1"},{"src":"\/core\/misc\/drupal.init.js?v=10.5.1"},{"src":"\/modules\/contrib\/addtocal\/addtocal.js?v=10.5.1"},{"src":"\/modules\/contrib\/addtocal\/addtocal-download.js?v=10.5.1"}]},{"command":"openDialog","selector":"#drupal-modal","settings":null,"data":"\n\u003Carticle class=\u0022node node--type-presentation node--promoted node--view-mode-modal\u0022\u003E\n      \u003Cdiv\u003ESession 18 - Environmental pollution\u003C\/div\u003E\n  \n      \u003Cb\u003E\u003Cspan\u003EBiosurfactants and bioemulsifiers: from contaminated soils to remediation via food-waste valorization.\u003C\/span\u003E\n\u003C\/b\u003E\n  \n      \u003Cdiv\u003E\u003Cb\u003ECEST ID: cest2025_00314\u003C\/b\u003E\u003C\/div\u003E\n  \n        \u003Cdiv class=\u0022mb-3\u0022\u003E\n      \u003Cb\u003ERoom Aegle A | Fri 5 Sep 2025 | 09:30 - 09:40 am\u003C\/b\u003E\n    \u003C\/div\u003E\n  \n          \n    \n  \n      \u003Cdiv class=\u0022mt-10\u0022\u003E\n            \u003Cdiv class=\u0022clearfix text-formatted field field--name-presentation-body field--type-text-long field--label-hidden field__item\u0022\u003EHydrocarbon-contaminated soils serve as rich ecological niches for the isolation of biosurfactant (BS) and bioemulsifier (BE) - producing microorganisms. This study adopted a waste valorization approach by converting food and agricultural residues into biosurfactants, which can be applied in soil remediation techniques, such as soil washing, soil flushing, and in situ biostimulation.  \n\nReal contaminated soil was used as inoculum for BS and BE production under anaerobic conditions, with nitrate and sulfate as electron acceptors. A microemulsion composed of waste frying oil and chickpea powder served as the carbon source, while hydrogen peroxide was added to stimulate microbial oxidative activity. \n\nThe effectiveness of the produced biosurfactants was evaluated using oil displacement and emulsification index (EI24h) tests on various hydrocarbons, including gasoline, diesel, fuel oil, and mineral oil. Biodegradation and stimulation assessments are ongoing, employing either freshly or aged contaminated soils treated with crude or microfiltered biosurfactant mixtures as biostimulants. Phytotoxicity tests on Zea mays, Lepidium sativum, and Sorghum bicolor to assess the safety of these mixtures, are in progress.  \n\nThe overarching goal is to demonstrate that waste-derived biosurfactants can enhance sustainable and cost-effective soil remediation strategies, without the need for microbial bioaugmentation. \u003C\/div\u003E\n      \u003C\/div\u003E\n  \n  \u003Cdiv class=\u0022mt-5 mb-5\u0022\u003E\n          \u003Cspan\u003E\n          \u003Cb\u003EPresenter:\u003C\/b\u003E\n                      \u003Cp\u003E\n            Marta Puddu\n            \u003C\/p\u003E\n                  \u003C\/span\u003E\n      \u003C\/div\u003E\n\n  \u003Cdiv class=\u0022mb-5\u0022\u003E\n          \u003Cdiv class=\u0022field__label\u0022\u003E\n        Authors\n      \u003C\/div\u003E\n              \u003Cp\u003E\n          Marta Puddu\n        \u003C\/p\u003E\n              \u003Cp\u003E\n          Gabriele Beretta\n        \u003C\/p\u003E\n              \u003Cp\u003E\n          Sabrina Saponaro\n        \u003C\/p\u003E\n              \u003Cp\u003E\n          Elena Sezenna\n        \u003C\/p\u003E\n            \u003C\/div\u003E\n\n\u003C\/article\u003E\n","dialogOptions":{"width":"700","position":{"my":"right top","at":"right top"},"closeOnEscape":true,"dialogClass":"presentation-dialog","modal":true,"title":"","classes":{"ui-dialog":"presentation-dialog"}}}]