Extracellular synthesis of silica oxide particles by fusarium oxysporum from rice husk ash

Tatiana Pineda, Carlos Henrique Lemos Soares, Dachamir Hotza, Ana Elisa Casas-Botero, Margarita Ramírez-Carmona, Mabel Torres-Taborda

    Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

    8 Citas (Scopus)

    Resumen

    Extracellular synthesis of silica particles was carried out by Fusarium oxysporum mycelia using rice husk ash (RHA) as raw material. RHA before and after bioprocessing was analyzed by SEM and specific surface area. Dissolved silica was quantified using colorimetry. Incubation of rice husk ash with F. Oxysporum at 28°C and pH 6.8 indicated that 80% silica was dissolved and micrographs of RHA before and after reaction with fungi showed that the morphology of silica particles changed and the average size decreased (~600 to ~5 μm). Moreover, specific volume pore of particles was reduced from 0.026 to 0.013 cm3/g and surface area increased from 115 to 125 m2/g. Dissolved silica corresponds to 177 m2/g. It is concluded that synthesis of oxide materials using fungal biotransformation is a viable process to obtain added value products from agro-industrial waste materials.

    Idioma originalInglés
    Título de la publicación alojadaAdvanced Powder Technology VIII
    EditoresLucio Salgado, Francisco Ambrozio Filho
    EditorialTrans Tech Publications Ltd
    Páginas1153-1157
    Número de páginas5
    ISBN (versión impresa)9783037854907
    DOI
    EstadoPublicada - 2012
    Evento8th International Latin-American Conference on Powder Technology 2012 - Santa Catarina, Brasil
    Duración: 6 nov. 20129 nov. 2012

    Serie de la publicación

    NombreMaterials Science Forum
    Volumen727-728
    ISSN (versión impresa)0255-5476
    ISSN (versión digital)1662-9752

    Conferencia

    Conferencia8th International Latin-American Conference on Powder Technology 2012
    País/TerritorioBrasil
    CiudadSanta Catarina
    Período6/11/129/11/12

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