Nos grandes mercados produtores de moluscos bivalves, a depuração destes organismos garante um produto final com alto valor comercial e com garantia de boas condições sanitárias. Para que a produção brasileira de ostras e mexilhões possa competir por um espaço no mercado internacional, é necessário que esta esteja de acordo com a legislação dos países concorrentes.
Apesar de a qualidade sanitária dos moluscos bivalves comercializados ser avaliada somente pela presença de bactérias (bactérias coliformes, Escherichia coli e Salmonella), tem sido claramente demonstrado que um controle baseado em parâmetros bacterianos não apresenta co-relação com presença de vírus nesses moluscos. Problemas de saúde humana associados ao consumo de ostras e mexilhões são bem descritos e contaminantes virais têm sido associados a muitos episódios de gastroenterites, considerando que estes moluscos são na maioria das vezes consumidos crus.
Estudos brasileiros sobre depuração de moluscos são raros, mas tornam-se necessários, considerando a necessidade de maior entendimento nesta área, com a finalidade de produzir conhecimento nacional para essa prática e evitar a importação de tecnologias estrangeiras. Nesta perspectiva, os resultados obtidos no presente trabalho são promissores para que a depuração de moluscos cultivados seja implementada no país. Sistemas de depuração de pequeno porte, permitem que esta tecnologia chegue mais facilmente a estabelecimentos comerciais como restaurantes e locais de venda de frutos do mar “in natura, o que traria grandes benefícios ao consumidor destes produtos.
Em breve a produção do Estado de Santa Catarina necessitará ultrapassar as fronteiras nacionais, devido ao grande aumento nos últimos anos. Desta forma, é de grande importância que as áreas de cultivo e a produção de moluscos apresentem uma qualidade microbiológica de acordo com a regulamentação vigente no País.
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