Decolorization of beet molasses vinasse by Bacillus megaterium ATCC 14581

Małgorzata Krzywonos , Andrzej Chałupniak , Magdalena Zabochnicka-Świątek


Beet molasses vinasse is formed in large quantities as a waste product of the distillery industry, where the molasses derived from sugar beet is used as a raw material. This vinasse has a dark color, low pH, and chelating properties. Many microorganisms have the ability to decolorize and biodegrade beet molasses vinasse. In this work, different cultivation parameters (the type of the bacterial culture; static or agitated) and medium components ((NH4)2SO4, KH2PO4, yeast extract, glucose, and peptone, and the vinasse concentration) were evaluated utilizing Plackett-Burman design to identify the important factors influencing the vinasse decolorization by Bacillus megaterium ATCC 14581. The significant variables were selected as follows: (NH4)2SO4, KH2PO4, glucose, and the concentration of vinasse. These four factors should be chosen as being promising for further optimization studies. The maximum color removal was 38%.
Author Małgorzata Krzywonos (EaE / IChaFT / DBE)
Małgorzata Krzywonos,,
- Department of Bioprocessing Engineering
, Andrzej Chałupniak (WUEB)
Andrzej Chałupniak,,
- Wroclaw University of Economics and Business
, Magdalena Zabochnicka-Świątek - Czestochowa University of Technology (PCz)
Magdalena Zabochnicka-Świątek,,
Journal seriesBioremediation Journal, ISSN 1088-9868, (A 15 pkt)
Issue year2017
Publication size in sheets0.5
Keywords in EnglishBacillus, beet molasses vinasse, decolorization, design of experiment, Plackett-Burman design
ASJC Classification2300 General Environmental Science
Languageen angielski
Score (nominal)15
Score sourcejournalList
Publication indicators Scopus Citations = 7; WoS Citations = 6; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.488; WoS Impact Factor: 2017 = 1.018 (2) - 2017=0.993 (5)
Citation count*11 (2020-07-05)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.