Antocianina: uma revisão sobre as tecnologias para obtenção do composto
DOI:
https://doi.org/10.5902/2179460X84237Palavras-chave:
Extração, Atividade antioxidante, Composto fenólico, AntocianidinasResumo
As antocianinas são compostos fenólicos com altas propriedades antioxidantes obtidos de fontes vegetais, como folhas, flores e frutos. Por ser um composto termossensível, requer muito controle sobre o método de extração para que não haja degradação e redução da atividade antioxidante. Neste contexto, este trabalho apresenta uma revisão sistemática sobre extração de antocianinas, bem como uma discussão de parâmetros que influenciam fortemente o rendimento e a quantidade de antocianinas extraídas, tais como tipos de solventes e acidificantes, tempo de extração, relação sólido-líquido e temperatura. Observou-se que a extração por solvente e a extração assistida por ultrassom são as técnicas mais utilizadas, assim como o metanol e o etanol os solventes mais utilizados. A extração, independente da matéria-prima, é otimizada quando realizada em pH baixo e temperaturas mais amenas. Destaca-se também a preferência pelos solventes polares, devido à melhor solubilidade em relação aos bioativos.
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Em particular,
Autores: Os Autores devem apresentar uma discussão objetiva sobre a importância do trabalho de pesquisa, bem como detalhes e referências suficientes para permitir que outros reproduzam as experiências. Declarações fraudulentas ou intencionalmente incorretas constituem comportamento antiético e são inaceitáveis. Artigos de Revisão também devem ser objetivos, abrangentes e relatos precisos do estado da arte. Os Autores devem assegurar que seu trabalho é uma obra totalmente original, e se o trabalho e / ou palavras de outros têm sido utilizadas, isso tem sido devidamente reconhecido. O plágio em todas as suas formas constitui um comportamento publicitário não ético e é inaceitável. Submeter o mesmo manuscrito a mais de um jornal simultaneamente constitui um comportamento publicitário não ético e é inaceitável. Os Autores não devem submeter artigos que descrevam essencialmente a mesma pesquisa a mais de uma revista. O Autor correspondente deve garantir que haja um consenso total de todos os Co-autores na aprovação da versão final do artigo e sua submissão para publicação.
Editores: Os Editores devem avaliar manuscritos exclusivamente com base no seu mérito acadêmico. Um Editor não deve usar informações não publicadas na própria pesquisa do Editor sem o consentimento expresso por escrito do Autor. Os Editores devem tomar medidas de resposta razoável quando tiverem sido apresentadas queixas éticas relativas a um manuscrito submetido ou publicado.
Revisores: Todos os manuscritos recebidos para revisão devem ser tratados como documentos confidenciais. As informações ou ideias privilegiadas obtidas através da análise por pares devem ser mantidas confidenciais e não utilizadas para vantagens pessoais. As revisões devem ser conduzidas objetivamente e as observações devem ser formuladas claramente com argumentos de apoio, de modo que os Autores possam usá-los para melhorar o artigo. Qualquer Revisor selecionado que se sinta desqualificado para rever a pesquisa relatada em um manuscrito ou sabe que sua rápida revisão será impossível deve notificar o Editor e desculpar-se do processo de revisão. Os Revisores não devem considerar manuscritos nos quais tenham conflitos de interesse resultantes de relacionamentos ou conexões competitivas, colaborativas ou outras conexões com qualquer dos autores, empresas ou instituições conectadas aos documentos.
