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ISHS Acta Horticulturae 736: III International Date Palm Conference

ADDED VALUE FOR DATE EXTRACTS BY INVERTASE PRODUCTION

Authors:   A. Bacha, O. Aloui-Lombarkia, M. Abdeddaim, E.-H. Ghennam
Keywords:   biotechnology, fermentation, -fructofurannosidase, Saccharomyces cerevisiae
DOI:   10.17660/ActaHortic.2007.736.52
Abstract:
Date production occupies an important place in Algerian agriculture. Part of this production remains unsold. In order to productively use this portion a new product was sought that would be easy to market and be of industrial use. We attempted to isolate a yeast (Saccharomyces cerevisiae) from the extract of date variety Mech degla that would produce invertase. The results have revealed a good adaptation of the isolated yeast from the beginning of culture, contrary to the commercial yeast which presented low adaptation in the beginning. The growth rate for the enzyme isolated and the commercial enzyme cultivated under the same conditions was estimated at 0.16/hour. The enzymatic activity of invertase produced by Saccharomyces cerevisiae cultived on an extract of the date variety Mech degla was better than that produced by Saccharomyces cerevisiae cultived on an extract of dates of Ghars. We concluded that the use of this technology could be beneficial to both the yeast (Saccharomyces cerevisiae) and date industries.

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