{"id":342,"date":"2022-03-14T19:43:26","date_gmt":"2022-03-14T19:43:26","guid":{"rendered":"http:\/\/cdmf.org.br\/en\/?p=342"},"modified":"2022-03-16T17:36:36","modified_gmt":"2022-03-16T17:36:36","slug":"edible-biodegradable-anti-microbial-plastic-boasts-higher-tensile-strength-than-petroleum-based-plastic","status":"publish","type":"post","link":"https:\/\/cdmf.org.br\/en\/2022\/03\/14\/edible-biodegradable-anti-microbial-plastic-boasts-higher-tensile-strength-than-petroleum-based-plastic\/","title":{"rendered":"Edible, biodegradable, anti-microbial plastic boasts higher tensile strength than petroleum-based plastic"},"content":{"rendered":"\n<p><em>Jos\u00e9 Tadeu Arantes<\/em><\/p>\n\n\n\n<p>Disposal of food packaging is a major cause of environmental pollution worldwide. More than 350 million metric tons of plastic are produced every year, and 85% of the garbage dumped in the oceans is plastic, according to estimates. Brazil is the fourth-largest producer, accounting for some 11 million metric tons per year. To make matters worse, most plastic packaging is derived from non-renewables such as petroleum.\u00a0<\/p>\n\n\n\n<p>Given all these drawbacks, reducing the use of fossil fuels to produce plastic is the target of a great deal of research around the world. Many scientists are working on the development of biodegradable packaging materials that also prevent contamination by microorganisms and extend shelf life so as to reduce losses.<\/p>\n\n\n\n<p>A study conducted by a research team called the Composites and Hybrid Nanocomposites Group (GCNH) at S\u00e3o Paulo State University (UNESP) in Ilha Solteira has produced an important contribution to this effort. It was supported by FAPESP, and an article reporting its findings is&nbsp;<a href=\"https:\/\/www.mdpi.com\/2073-4360\/13\/24\/4298\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>published<\/strong><\/a>&nbsp;in the journal&nbsp;<em>Polymers<\/em>.<\/p>\n\n\n\n<p>The researchers made their bioplastic (or \u201cgreen plastic\u201d, as it is also known) from type B bovine gelatin easily found in retail stores in the form of a colorless powder.&nbsp;<\/p>\n\n\n\n<p>\u201cGelatin was one of the first materials used in the production of biopolymers. It\u2019s still widely used owing to its abundance, low cost and excellent film-forming properties,\u201d said chemist and materials scientist&nbsp;<a href=\"https:\/\/bv.fapesp.br\/en\/pesquisador\/79931\/marcia-regina-de-moura-aouada\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>M\u00e1rcia Regina de Moura Aouada<\/strong><\/a>, a professor at the Ilha Solteira School of Engineering (FEIS-UNESP) and last author of the article.<\/p>\n\n\n\n<p>\u201cHowever, biopolymers for packaging have characteristics that need to be improved in order to be comparable to petroleum products, especially as far as mechanical properties and vapor permeability are concerned, so we added cloisite Na<sup>+<\/sup>&nbsp;nanoclay to the gelatin,\u201d she explained.<\/p>\n\n\n\n<p>Adding nanoclay made the film more homogeneous and increased its tensile strength to 70 megapascals (MPa). Conventional polyethylene packaging has less than half this tensile strength (in the range of 20 MPa-30 MPa).<\/p>\n\n\n\n<p>\u201cBesides nanoclay, we also added a nanoemulsion made from black pepper essential oil to give the packaging a more attractive flavor and odor. The mixture also extends the shelf life of food products packaged with the material, thanks to the inclusion of anti-microbial and anti-oxidant components in the polymeric matrix,\u201d she said.<\/p>\n\n\n\n<p>It is worth noting that the bioplastic in question was originally designed to package beef in the form of hamburgers, which are vulnerable to microbial contamination and have a strong smell, but the principle of adding nanoclay and essential oil nanoemulsion to a gelatin matrix can and will be extended to other foods, varying the type and proportion of essential oil used.<\/p>\n\n\n\n<p>\u201cIf this kind of packaging becomes widespread in the marketplace, it could significantly reduce the use of plastic made from non-biodegradable polymers and hence the amount of solid waste,\u201d Moura Aouada said. \u201cIn addition, the bioplastic will better protect packaged food against contamination by pathogens and help reduce losses.\u201d<\/p>\n\n\n\n<p>The research lines followed at GCNH-UNESP focus on the circular economy, which converts waste into resources. The group\u2019s leaders,&nbsp;<a href=\"https:\/\/bv.fapesp.br\/en\/pesquisador\/76829\/fauze-ahmad-aouada\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Fauze Aouada<\/strong><\/a>&nbsp;and M\u00e1rcia Moura Aouada, are professors affiliated with UNESP\u2019s Program of Graduate Studies in Materials Science (PPGCM).<\/p>\n\n\n\n<p>\u201cOur proposals are aligned with the Sustainable Development Goals [<em>SDGs<\/em>] adopted by the United Nations to end poverty, foster the planet\u2019s economic sustainability, and ensure that the entire world population can enjoy peace and prosperity,\u201d Moura Aouada said.<\/p>\n\n\n\n<p>The group also produces wound dressings from bacterial cellulose, and edible packaging containing nanostructures derived from kale pur\u00e9e, cocoa pur\u00e9e, cupuassu (<em>Theobroma grandiflorum<\/em>) pur\u00e9e, camu camu (<em>Myrciaria dubia<\/em>) extract and nanoemulsions, with potential applications in the food, pharmaceutical and cosmetics industries.<\/p>\n\n\n\n<p>The research is supported by FAPESP via a&nbsp;<a href=\"https:\/\/bv.fapesp.br\/en\/auxilios\/105839\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Research Regular Grant<\/strong><\/a>&nbsp;and also via the Center for Development of Functional Materials (<a href=\"http:\/\/cdmf.org.br\/en\/2019\/10\/30\/about\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>CDMF<\/strong><\/a>), a Research, Innovation and Dissemination Center (<a href=\"http:\/\/cepid.fapesp.br\/en\/home\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>RIDC<\/strong><\/a>) hosted by the Federal University of S\u00e3o Carlos (UFSCar).<\/p>\n\n\n\n<p>The work is multidisciplinary and entails networking by several researchers per topic. The article mentioned earlier also has the following co-authors: Fauze Aouada, Tascila Saranti (MSc), and Pamela Melo (Ph.D.) from UNESP; and Miguel Cerqueira, from International Iberian Nanotechnology Laboratory, Portugal.<\/p>\n\n\n\n<p>The article \u201cPerformance of gelatin films reinforced with cloisite Na<sup>+<\/sup>&nbsp;and black pepper essential oil loaded nanoemulsion\u201d is at:&nbsp;<a rel=\"noreferrer noopener\" href=\"https:\/\/www.mdpi.com\/2073-4360\/13\/24\/4298\" target=\"_blank\"><strong>www.mdpi.com\/2073-4360\/13\/24\/4298<\/strong><\/a>.<\/p>\n\n\n\n<p><em>First on <a href=\"https:\/\/agencia.fapesp.br\/edible-biodegradable-anti-microbial-plastic-boasts-higher-tensile-strength-than-petroleum-based-plastic\/38077\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ag\u00eancia Fapesp<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Jos\u00e9 Tadeu Arantes Disposal of food packaging is a major cause of environmental pollution worldwide. More than 350 million metric tons of plastic are produced every year, and 85% of the garbage dumped in the <a class=\"mh-excerpt-more\" href=\"https:\/\/cdmf.org.br\/en\/2022\/03\/14\/edible-biodegradable-anti-microbial-plastic-boasts-higher-tensile-strength-than-petroleum-based-plastic\/\" title=\"Edible, biodegradable, anti-microbial plastic boasts higher tensile strength than petroleum-based plastic\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":3,"featured_media":345,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[11,9],"tags":[36,17,18,31,19,46,40],"class_list":{"0":"post-342","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-featured","8":"category-news","9":"tag-capes","10":"tag-cdmf","11":"tag-cepid","12":"tag-cnpq","13":"tag-fapesp","14":"tag-finep","15":"tag-unesp"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Edible, biodegradable, anti-microbial plastic boasts higher tensile strength than petroleum-based plastic - Functional Materials Development Center<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/cdmf.org.br\/en\/2022\/03\/14\/edible-biodegradable-anti-microbial-plastic-boasts-higher-tensile-strength-than-petroleum-based-plastic\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Edible, biodegradable, anti-microbial plastic boasts higher tensile strength than petroleum-based plastic - Functional Materials Development Center\" \/>\n<meta property=\"og:description\" content=\"Jos\u00e9 Tadeu Arantes Disposal of food packaging is a major cause of environmental pollution worldwide. 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