Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/26071
Type: Artigo de periódico
Title: Preparation of silica with controlled pore sizes for enzyme immobilization
Author: Trevisan, H.C.
Mei, L.H.I.
Zanin, G.M.
Abstract: A simple method for the preparation of silica with controlled pore size, for use as a support for the immobilization of enzymes, is described in this article. Using sodium silicate and hydrochloric acid, a microporous silica was obtained that was then submitted to a hydrothermal treatment, resulting in macroporous silica suitable for enzyme immobilization. Suitability of the macroporous silica as a support depends on the method chosen for its preparation, which will determine pore volume and the effect of hydrothermal treatment on pore size. The pore volume of the support was 0.8-0.9 cc/g and the average pore size, controlled by the hydrothermal treatment, was in the range of 16 to 75 nm. The enzyme amyloglucosidase was used for the immobilization studies.
Subject: silica, preparation
enzyme immobilization
amyloglucosidase
Editor: Brazilian Society of Chemical Engineering
Rights: aberto
Identifier DOI: 10.1590/S0104-66322000000100006
Address: http://dx.doi.org/10.1590/S0104-66322000000100006
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000100006
Date Issue: 1-Mar-2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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