Article In: orcid

IMMOBILIZATION OF YEASTS ON TITANIUM ACTIVATED INORGANIC SUPPORTS

Biotechnology Letters

S. M. M. Dias; J.M. Novais; J. M. S. Cabral — 1982

Key information

Authors:

S. M. M. Dias (Susete Maria Martins Dias); J.M. Novais (Júlio Maggiolly Novais); J. M. S. Cabral (Joaquim Manuel Sampaio Cabral)

Published in

March 1982

Abstract

A study of the immobilization of yeast cells with invertase activity by the metal link method was performed. Baker's yeast cells were immobilized on titanium activated porous silica support and on its alkylamine and aldehyde derivatives, their initial activities being 19.6, 39.9 and 10.6 U/ml of reactor respectively. When crosslinking of the immobilized cells was performed, an initial activity of 48.2 U/ml was achieved on the titanium activated support. Batch long-term stability tests were car ried out for 400 hours and the crosslinked preparations showed an unsta ble behaviour compared with the very stable preparations obtained with the simple metal-link method. A higher activity (56.2 U/ml) was obtained when a titanium activated macroporous support, pumice stone, was used as cell carrier, which compared favourably with calcium alginate entrapped cells (17.7 – 31.3 U/ml)

Publication details

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Title of the publication container

Biotechnology Letters

First page or article number

203

Last page

208

Volume

4

Issue

3

DOI

10.1007/BF00144325

Fields of Science and Technology (FOS)

biological-sciences - Biological sciences

Publication language (ISO code)

eng - English

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