Wastewaters from rose wine production as substrate for xanthan production

BOJANA, BAJIC and JELENA, DODIC and JOVANA, GRAHOVAC and SINISA, DODIC and UROS, MILJIC and VLADIMIR, PUSKAS and ZORANA, RONCEVIC (2015) Wastewaters from rose wine production as substrate for xanthan production. In: Second International Conference on Advances in Bio-Informatics and Environmental Engineering - ICABEE 2015, 18 - 19 April, 2015, Rome, Italy.

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Abstract

Wineries and other grape processing industries annually generate large amounts of solid and liquid waste streams. Winery wastewaters are the waste product of many independent processing and cleaning operations in wineries. As a consequence of the working period and the winemaking technologies, as well as the cleaning practices, volumes and composition of winery wastewaters greatly vary over the year. Due to high organic load, the disposal of these effluents in the environment causes several issues. The bioconversions of winery wastewaters in valuable products are an important alternative to overcome these ecological problems. The aim of this study was to examine the possibility of xanthan production from media based on four wastewaters obtained from different stages of the rose wine production process, i.e. wastewaters collected during the washing of the crusher, press and tanks after clarification of must and fermentation. Process efficacy was estimated based on raw xanthan yield and rheological characteristics of media. In applied experimental conditions, raw xanthan yields were in the range between 8.03 g/L and 17.52 g/L. Also, all cultivation media showed pseudoplastic behavior. Obtained results suggest that wastewaters from rose wine production have a great potential to be used as a substrate for production of this high value biopolymer.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: environmental engineering, winery wastewaters, biotechnological xanthan production
Depositing User: Mr. John Steve
Date Deposited: 02 May 2019 11:17
Last Modified: 02 May 2019 11:17
URI: http://publications.theired.org/id/eprint/1860

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