{"id":188417,"date":"2026-03-02T11:31:54","date_gmt":"2026-03-02T10:31:54","guid":{"rendered":"https:\/\/www.ainia.com\/?p=188417"},"modified":"2026-03-02T11:31:54","modified_gmt":"2026-03-02T10:31:54","slug":"microalgas-e-cianobacterias-novas-fontes-na-producao-de-compostos-bioativos-unicos","status":"publish","type":"post","link":"https:\/\/www.ainia.com\/pt\/ainia-news\/microalgas-e-cianobacterias-novas-fontes-na-producao-de-compostos-bioativos-unicos\/","title":{"rendered":"Microalgas e cianobact\u00e9rias: novas fontes na produ\u00e7\u00e3o de compostos bioativos \u00fanicos"},"content":{"rendered":"<html><body><div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text css=\u201d\u201d]<\/p>\n<blockquote>\n<p data-start=\"112\" data-end=\"551\">A pesquisa de <strong data-start=\"127\" data-end=\"170\">fontes naturais de compostos ativos<\/strong> constitui uma das linhas de investiga\u00e7\u00e3o mais amplas em <strong data-start=\"227\" data-end=\"262\">biotecnologia fundamental e aplicada<\/strong>. Tradicionalmente, outras plataformas microbianas t\u00eam sido as principais fontes est\u00e1veis para a produ\u00e7\u00e3o de <strong data-start=\"371\" data-end=\"396\">compostos bioativos<\/strong>. No entanto, \u00e9 necess\u00e1rio explorar outros microrganismos com vantagens ao n\u00edvel do <strong data-start=\"485\" data-end=\"500\">crescimento<\/strong>, <strong data-start=\"502\" data-end=\"519\">adaptabilidade<\/strong> e <strong data-start=\"522\" data-end=\"550\">diversidade qu\u00edmica \u00fanica<\/strong>.<\/p>\n<\/blockquote>\n<h2 data-start=\"553\" data-end=\"1126\"><strong><span class=\"NormalTextRun SCXW131328861 BCX8\">Microalgas e\u00a0<\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW131328861 BCX8\">cianobact\u00e9rias<\/span><span class=\"NormalTextRun SCXW131328861 BCX8\">: Por que apostar em microrganismos\u00a0<\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW131328861 BCX8\">fototr\u00f3ficos<\/span><\/strong><\/h2>\n<p data-start=\"553\" data-end=\"1126\">As <strong data-start=\"608\" data-end=\"639\">microalgas e cianobact\u00e9rias<\/strong> s\u00e3o organismos fototr\u00f3ficos capazes de se adaptar a diferentes ambientes gra\u00e7as a um <strong data-start=\"740\" data-end=\"769\">metabolismo altamente eficiente<\/strong>. A partir delas, numerosos compostos s\u00e3o produzidos no metabolismo prim\u00e1rio e secund\u00e1rio, destacando-se os <strong data-start=\"883\" data-end=\"894\">l\u00edpidos<\/strong> (carotenoides, \u00e1cidos gordos \u00f3mega-3 e 6, \u00e1cidos gordos suscet\u00edveis de serem convertidos em biodiesel), as <strong data-start=\"997\" data-end=\"1010\">prote\u00ednas<\/strong> (pigmentos proteicos, micosporinas), hidratos de carbono, \u00e1cidos fen\u00f3licos, compostos antimicrobianos, policet\u00eddeos, etc.<\/p>\n<p data-start=\"1128\" data-end=\"1773\">Em conjunto, possuem numerosas <strong data-start=\"1161\" data-end=\"1187\">capacidades bioativas<\/strong> que as tornam muito atrativas em diferentes \u00e1reas, como o setor <strong data-start=\"1247\" data-end=\"1263\">nutrac\u00eautico<\/strong> (suplementos, alimenta\u00e7\u00e3o funcional), <strong data-start=\"1303\" data-end=\"1316\">cosm\u00e9tico<\/strong>, <strong data-start=\"1318\" data-end=\"1327\">farmac\u00eautico<\/strong>, <strong data-start=\"1329\" data-end=\"1348\">biocombust\u00edveis<\/strong>, <strong data-start=\"1350\" data-end=\"1379\">bioestimulantes agr\u00edcolas<\/strong>, nutri\u00e7\u00e3o humana e animal e <strong data-start=\"1412\" data-end=\"1436\">corantes naturais<\/strong>. Dentro desta diversidade qu\u00edmica, existem compostos bioativos produzidos apenas por microrganismos fototr\u00f3ficos, como as <strong data-start=\"1559\" data-end=\"1580\">ficobiliprote\u00ednas<\/strong>, os <strong data-start=\"1586\" data-end=\"1623\">\u00e1cidos gordos \u00f3mega 3 (EPA e DHA)<\/strong>, os <strong data-start=\"1629\" data-end=\"1657\">polissacar\u00eddeos sulfatados<\/strong> e os <strong data-start=\"1664\" data-end=\"1772\">antioxidantes naturais mais potentes que existem: astaxantina, fucoxantina e os seus precursores metab\u00f3licos<\/strong>.<\/p>\n<h3 data-start=\"1775\" data-end=\"2302\"><strong data-start=\"1775\" data-end=\"1827\">Sustentabilidade e potencial ainda por descobrir<\/strong><\/h3>\n<p data-start=\"1775\" data-end=\"2302\">Por outro lado, o seu <strong data-start=\"1848\" data-end=\"1870\">crescimento r\u00e1pido<\/strong>, a sua <strong data-start=\"1872\" data-end=\"1897\">elevada reprodutibilidade<\/strong> e a sua capacidade de <strong data-start=\"1916\" data-end=\"1967\">aclimata\u00e7\u00e3o a diferentes correntes residuais<\/strong> como meio nutritivo tornam as microalgas e cianobact\u00e9rias a fonte natural de compostos ativos mais <strong data-start=\"2079\" data-end=\"2104\">sustent\u00e1vel e eficaz<\/strong>. Al\u00e9m disso, apenas <strong data-start=\"2132\" data-end=\"2167\">10 % da diversidade taxon\u00f3mica<\/strong> deste grupo de microrganismos \u00e9 conhecida, o que aumenta o interesse pelos trabalhos de <strong data-start=\"2248\" data-end=\"2266\">bioprospe\u00e7\u00e3o<\/strong> em ambientes singulares ou extremos.<\/p>\n<p data-start=\"2304\" data-end=\"2826\">Na AINIA dispomos das <strong data-start=\"2330\" data-end=\"2362\">instala\u00e7\u00f5es e equipamentos<\/strong> necess\u00e1rios para cultivar numerosas esp\u00e9cies de microalgas e cianobact\u00e9rias a diferentes escalas, abrindo assim um vasto leque de possibilidades para produzir <strong data-start=\"2502\" data-end=\"2527\">biomassas \u201c\u00e0 medida\u201d<\/strong> ou <strong data-start=\"2530\" data-end=\"2574\">extratos ricos em compostos de interesse<\/strong>. Al\u00e9m disso, a experi\u00eancia adquirida permite atualmente cultivar <strong data-start=\"2636\" data-end=\"2659\">esp\u00e9cies n\u00e3o t\u00edpicas<\/strong>, caracter\u00edstica altamente diferenciadora que possibilitaria ampliar a lista de compostos espec\u00edficos destes grupos microbianos ainda n\u00e3o explorados ou descobertos.<\/p>\n<h3 data-start=\"2828\" data-end=\"3225\"><strong data-start=\"2828\" data-end=\"2889\">Linhas de trabalho: da investiga\u00e7\u00e3o \u00e0 transfer\u00eancia<\/strong><\/h3>\n<p data-start=\"2828\" data-end=\"3225\">Especificamente, a linha de <strong data-start=\"2926\" data-end=\"2948\">Biomassas Aqu\u00e1ticas<\/strong> trabalha ativamente na <strong data-start=\"2980\" data-end=\"3014\">transforma\u00e7\u00e3o e transfer\u00eancia<\/strong> de todo este conhecimento, ao mesmo tempo que refor\u00e7a, complementa e desenvolve vias pioneiras e inovadoras com o apoio de outras linhas. Isto pode ser traduzido e classificado em diferentes grupos qu\u00edmicos de interesse:<\/p>\n<ol data-start=\"3227\" data-end=\"5601\">\n<li data-start=\"3227\" data-end=\"3598\">\n<p data-start=\"3230\" data-end=\"3598\"><strong data-start=\"3230\" data-end=\"3275\">Produ\u00e7\u00e3o de compostos fotoprotetores:<\/strong> \u00c9 considerado um eixo estruturante da linha de Biomassas Aqu\u00e1ticas. Devido \u00e0 <strong data-start=\"3357\" data-end=\"3381\">versatilidade qu\u00edmica<\/strong> de alguns grupos de subst\u00e2ncias, foram estudados como potenciais extratos ativos tanto na <strong data-start=\"3476\" data-end=\"3512\">prote\u00e7\u00e3o de culturas agr\u00edcolas<\/strong> como na conce\u00e7\u00e3o de <strong data-start=\"3534\" data-end=\"3562\">formula\u00e7\u00f5es cosm\u00e9ticas<\/strong>, com resultados muito promissores.<\/p>\n<\/li>\n<li data-start=\"3600\" data-end=\"4183\">\n<p data-start=\"3603\" data-end=\"4183\"><strong data-start=\"3603\" data-end=\"3671\">Produ\u00e7\u00e3o de pigmentos proteicos provenientes de cianobact\u00e9rias:<\/strong> Corantes naturais como a <strong data-start=\"3698\" data-end=\"3747\">ficocianina, ficoeritr\u00f3cianina e ficoeritrina<\/strong>. Todos s\u00e3o produzidos exclusivamente por cianobact\u00e9rias dos g\u00e9neros <em data-start=\"3821\" data-end=\"3833\">Limnospira<\/em>, <em data-start=\"3835\" data-end=\"3845\">Anabaena<\/em> e <em data-start=\"3848\" data-end=\"3856\">Nostoc<\/em>. A sua origem natural dever\u00e1 substituir outros tipos de corantes sint\u00e9ticos na ind\u00fastria t\u00eaxtil ou alimentar. Al\u00e9m disso, o seu <strong data-start=\"3987\" data-end=\"4014\">elevado poder antioxidante<\/strong> ampliou o seu leque de aplica\u00e7\u00f5es, permitindo a sua utiliza\u00e7\u00e3o como compostos ativos em nutri\u00e7\u00e3o, cosm\u00e9tica e no tratamento de determinadas doen\u00e7as cr\u00f3nicas.<\/p>\n<\/li>\n<li data-start=\"4185\" data-end=\"4901\">\n<p data-start=\"4188\" data-end=\"4901\"><strong data-start=\"4188\" data-end=\"4266\">Produ\u00e7\u00e3o de polissacar\u00eddeos, prote\u00ednas, amino\u00e1cidos, compostos fen\u00f3licos:<\/strong> As plataformas biotecnol\u00f3gicas para a produ\u00e7\u00e3o de <strong data-start=\"4321\" data-end=\"4347\">prote\u00ednas alternativas<\/strong> constituem o outro eixo central da linha de Biomassas Aqu\u00e1ticas. O <strong data-start=\"4409\" data-end=\"4439\">elevado teor proteico<\/strong> e o seu perfil de amino\u00e1cidos, muito equilibrado do ponto de vista nutricional, posicionam as microalgas como uma fonte promissora para a nutri\u00e7\u00e3o humana e animal. Por outro lado, os <strong data-start=\"4618\" data-end=\"4667\">polissacar\u00eddeos extracelulares e intracelulares<\/strong> apresentam propriedades espessantes, antioxidantes e bioativas, enquanto os <strong data-start=\"4747\" data-end=\"4771\">compostos fen\u00f3licos<\/strong>, embora geralmente presentes em concentra\u00e7\u00f5es mais baixas, exibem elevada capacidade antioxidante e potencial bioatividade.<\/p>\n<\/li>\n<li data-start=\"4903\" data-end=\"5601\">\n<p data-start=\"4906\" data-end=\"5601\"><strong data-start=\"4906\" data-end=\"4976\">Produ\u00e7\u00e3o de pigmentos apolares atrav\u00e9s de microalgas (eucariotas):<\/strong> Nesta sec\u00e7\u00e3o encontram-se os compostos ativos com maior diversidade e aplica\u00e7\u00f5es. \u00c9 tamb\u00e9m o grupo mais estudado e onde a linha de Biomassas Aqu\u00e1ticas possui maior experi\u00eancia. Os mais importantes s\u00e3o alguns pigmentos antioxidantes, como a <strong data-start=\"5239\" data-end=\"5278\">astaxantina, beta-caroteno, lute\u00edna<\/strong> e precursores metab\u00f3licos como a <strong data-start=\"5310\" data-end=\"5352\">zeaxantina, cantaxantina e fucoxantina<\/strong>. Para tal, foram desenvolvidas estrat\u00e9gias de <strong data-start=\"5400\" data-end=\"5425\">cultivo em duas etapas<\/strong> (etapa de produ\u00e7\u00e3o de biomassa e etapa de produ\u00e7\u00e3o do composto ativo), gerando elevados rendimentos em produtividade e uma concentra\u00e7\u00e3o \u00f3tima de pigmento(s) por c\u00e9lula.<\/p>\n<\/li>\n<\/ol>\n<h2 data-start=\"5603\" data-end=\"6198\"><strong><span class=\"TextRun SCXW261294129 BCX8\" lang=\"ES-ES\" xml:lang=\"ES-ES\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW261294129 BCX8\">Microalgas e\u00a0<\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW261294129 BCX8\">cianobact\u00e9rias<\/span><span class=\"NormalTextRun SCXW261294129 BCX8\">: Impacto e pr\u00f3ximos\u00a0<\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW261294129 BCX8\">passos<\/span><span class=\"NormalTextRun SCXW261294129 BCX8\">\u00a0<\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW261294129 BCX8\">com<\/span><span class=\"NormalTextRun SCXW261294129 BCX8\">\u00a0a\u00a0<\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW261294129 BCX8\">ind\u00fastria<\/span><\/span><span class=\"EOP SCXW261294129 BCX8\" data-ccp-props='{\"134233117\":false,\"134233118\":false,\"335559738\":240,\"335559739\":240}'>\u00a0<\/span><\/strong><\/h2>\n<p data-start=\"5603\" data-end=\"6198\">Em s\u00edntese, a linha de Biomassas Aqu\u00e1ticas trabalha para <strong data-start=\"5737\" data-end=\"5798\">estudar, descobrir e implementar tecnologias inovadoras<\/strong> para a produ\u00e7\u00e3o de compostos ativos em microalgas e cianobact\u00e9rias. Gra\u00e7as a todo o conhecimento e experi\u00eancia adquiridos, est\u00e3o a ser definidas vias de colabora\u00e7\u00e3o interna e <strong data-start=\"5993\" data-end=\"6049\">vias de transfer\u00eancia de conhecimento e colabora\u00e7\u00e3o externa<\/strong> com empresas e outras entidades. Isto traduz-se num melhor <strong data-start=\"6110\" data-end=\"6150\">posicionamento tecnol\u00f3gico da AINIA<\/strong> e em avan\u00e7os em diversos setores de interesse.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div><\/body><\/html>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text css=\u201d\u201d] A pesquisa de fontes naturais de compostos ativos constitui uma das linhas de investiga\u00e7\u00e3o mais amplas em biotecnologia fundamental e aplicada. Tradicionalmente, outras plataformas microbianas t\u00eam sido as principais fontes est\u00e1veis para a produ\u00e7\u00e3o de compostos bioativos. No entanto, \u00e9 necess\u00e1rio explorar outros microrganismos com vantagens ao n\u00edvel do crescimento, adaptabilidade e diversidade [&hellip;]<\/p>\n","protected":false},"author":900,"featured_media":176588,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1963],"tags":[],"class_list":["post-188417","post","type-post","status-publish","format-standard","hentry","category-inovacao-tecnologica"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Microalgas e cianobact\u00e9rias: novas fontes na produ\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"As microalgas e cianobact\u00e9rias destacam-se como fontes sustent\u00e1veis de compostos bioativos, incluindo pigmentos, prote\u00ednas e antioxidantes, com elevado potencial 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