Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/16792
Título: | Separation of yeasts by addition of flocculent cells of Saccharomyces cerevisiae |
Autor(es): | Mortier, Annelies Soares, Eduardo V. |
Palavras-chave: | Adhesion Aggregation Cell separation Co-flocculation Sedimentation Yeast |
Data: | 2007 |
Editora: | Springer |
Revista: | World Journal of Microbiology and Biotechnology |
Resumo(s): | Separation of yeast cells using a co-flocculation process was investigated. Co-flocculation is a fast process (within few minutes), occurs in a broad pH range (3.0–8.0) and requires a small amount of calcium (0.1 mM). Agitation affects yeast aggregation; however, an agitation between 60 rev/min and 160 rev/min has only a little influence on the co-flocculation process. The ratio flocculent/ non-flocculent cells that induced the settling of 50 and 90% of the cells of S. cerevisiae was 1:7 and 1:1, respectively. Separation of non-flocculent cells can be carried out at any time of the growth cycle. No difference in the efficiency of co-flocculation carried out in buffer (pH 4.0 with 10 mM calcium) or in 48 h-fermented broth was observed. Flocculent cells of Saccharomyces cerevisiae had the ability to sediment non-flocculent cells of S. cerevisiae and Kluyveromyces marxianus, which shows the suitability of the co-flocculation process for separation of different kinds of non-flocculent cells. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/16792 |
DOI: | 10.1007/s11274-007-9379-6 |
ISSN: | 1573-0972 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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3301.pdf Acesso restrito! | 452,82 kB | Adobe PDF | Ver/Abrir |