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Xanthan production on wastewaters from wine industry
- Source :
- Hemijska Industrija, Vol 71, Iss 2, Pp 145-153 (2017)
- Publication Year :
- 2017
- Publisher :
- Association of Chemical Engineers of Serbia, 2017.
-
Abstract
- Wine industry generates large volumes of wastewaters resulting from numerous cleaning operations that occur during the different stages of winemaking. Disposal of these effluents in the environment causes huge problems due to their high organic and inorganic load and seasonal variability. The bioconversion of winery wastewaters in valuable product, such as xanthan, is an important alternative to overcome environmental problems. In this research, the possibility of xanthan production using Xanthomonas campestris on blended wastewaters from different stages of white and rose wine production with initial sugar content of 50 g/L was investigated. In addition to the media parameters (content of sugars, total and assimilable nitrogen, phosphorus, total dissolved salts and apparent viscosity), raw xanthan yield and degree of sugar conversion into product were determined in order to examine the success of xanthan biosynthesis. In applied experimental conditions, xanthan yield of 20.92 and 30.64 g/L and sugar conversion into product of 40.23 and 60.73% were achieved on wastewaters from white and rose wine production, respectively. The results of these experiments suggest that winery wastewaters, after additional optimization of the process in terms of the substrate composition and the cultivation conditions, may be a suitable raw material for industrial xanthan production.
- Subjects :
- xanthan
Xanthomonas campestris
wastewaters
wine industry
Chemical technology
TP1-1185
Subjects
Details
- Language :
- English, Serbian
- ISSN :
- 0367598X and 22177426
- Volume :
- 71
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Hemijska Industrija
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.f62e4cc99f634a8d91c41d4bdd28f6ff
- Document Type :
- article
- Full Text :
- https://doi.org/10.2298/HEMIND160401025R