Biodegradation and detoxification of melanoidin from distillery effluent using an aerobic bacterial strain SAG5 of Alcaligenes faecalis

Santal, Anita Rani; Singh, N.; Saharan, Baljeet Singh

doi:10.1016/j.jhazmat.2011.07.068

Cited by 39 publications

(17 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results are shown in Figure 1. It has been reported that the supplementation of nitrogen sources enhanced and positively affected the decolourization process [19][20]. Krzywonos et al [21] have used Bacillus megaterium ATCC 14581 for vinasse decolourization.…”

Section: Resultsmentioning

confidence: 99%

Decolourization of Sugar Beet Molasses Vinasse by Lactic Acid Bacteria – the Effect of Yeast Extract Dosage

Wilk¹,

Krzywonos²,

Borowiak³

et al. 2018

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

An increased scientific interest in the colourants from vinasse began in the last decade of the 20 th century, when it was shown that some of them are toxic to animals and plants. The source of colourants in beet vinasse is not beet juice, which is colourless, but the process of obtaining white sugar from beet juice and the technology for producing ethanol from molasses. Dominant coloured compounds in sugar beet molasses vinasse (BMV) are formed in the processes of the degradation of sugars, particularly glucose and fructose. These monosaccharides are the result of the inversion of sucrose, which already occurs in the early stages of the production of beet sugar [1]. Under conditions of high temperature and acidic or alkaline pH, they are degraded to highly reactive intermediates, which, by condensation and polymerization, form coloured polymers. These compounds are formed without enzymes. The non-enzymatic reactions of the hexoses may produce melanoidins, invert alkaline degradation Pol. J. Environ. Stud. Vol. 28, No. 1 (2019), 385-392 AbstractVinasse is the waste product from the production of ethanol that is most loaded with pollutants. Known methods of treating vinasse allow for a reduction in the pollution load, but do not remove the brown colour. The aim of this study was to investigate the effect of the addition of yeast extract ( ), and different amounts of yeast extract addition (2.24, 4.48, and 8.96 g dm -3 ). It was observed that an increase in the YE dose in the medium was followed by a decrease in decolourization of the vinasse. The maximum decolourization was 28.36% ). Regardless of the YE amount added to the medium, removal of invert alkaline degradation products content in all experiments was at a similar level (approx. 13%). With an increased dose of YE, an increase in the caramel content was observed. The biggest melanoidins removal (62.3%) was found in the process with the highest YE dose. The acrylamide, 4-methylimidazole, furfural, 5-hydroxymethylfurfural, and 2-acetyl-4-(1,2,3,4)-tetrahydroxy-butylimidazole were completely assimilated.

show abstract

Section: Resultsmentioning

confidence: 99%

Decolourization of Sugar Beet Molasses Vinasse by Lactic Acid Bacteria – the Effect of Yeast Extract Dosage

Wilk¹,

Krzywonos²,

Borowiak³

et al. 2018

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

show abstract

“…The toxicity of the fresh and in situ -degraded sludge leachate was assessed by measuring the phytotoxicity effect on the germination of seeds of Phaseolus mungo L. using the Petri dish method (Santal et al, 2011). Prior to preparation of various concentrations of distillery leachate, the pH was adjusted to 7.0 with 1 M NaOH.…”

Section: Methodsmentioning

confidence: 99%

Detection of Androgenic-Mutagenic Compounds and Potential Autochthonous Bacterial Communities during In Situ Bioremediation of Post-methanated Distillery Sludge

Chandra

Kumar

2017

Front. Microbiol.

View full text Add to dashboard Cite

Sugarcane-molasses-based post-methanated distillery waste is well known for its toxicity, causing adverse effects on aquatic flora and fauna. Here, it has been demonstrated that there is an abundant mixture of androgenic and mutagenic compounds both in distillery sludge and leachate. Gas chromatography-mass spectrometry (GC-MS) analysis showed dodecanoic acid, octadecanoic acid, n-pentadecanoic acid, hexadecanoic acid, β-sitosterol, stigmasterol, β-sitosterol trimethyl ether, heptacosane, dotriacontane, lanosta-8, 24-dien-3-one, 1-methylene-3-methyl butanol, 1-phenyl-1-propanol, 5-methyl-2-(1-methylethyl) cyclohexanol, and 2-ethylthio-10-hydroxy-9-methoxy-1,4 anthraquinone as major organic pollutants along with heavy metals (all mg kg-1): Fe (2403), Zn (210.15), Mn (126.30, Cu (73.62), Cr (21.825), Pb (16.33) and Ni (13.425). In a simultaneous analysis of bacterial communities using the restriction fragment length polymorphism (RFLP) method the dominance of Bacillus sp. followed by Enterococcus sp. as autochthonous bacterial communities growing in this extremely toxic environment was shown, indicating a primary community for bioremediation. A toxicity evaluation showed a reduction of toxicity in degraded samples of sludge and leachate, confirming the role of autochthonous bacterial communities in the bioremediation of distillery waste in situ.

show abstract

“…Physico-chemical treatment Enzymatic treatment Adsorption [38] Coagulation [42] Flocculation [43] Oxidation process [44] Membrane treatment [46] Evaporation [47][48][49] Combustion [50] Peroxidases Oxidoreductases Cellulolytic enzymes cyanidase Proteases Amylases etc. [122][123][124][125][126][127] Biological treatment Aerobic treatment Anaerobic treatment/ Reactors [53][54][55][56][57][58][59][60][61][62][63][64][65][66][67] Bacterial treatment [69][70][71][72][73][74][75][76][77][78][79][80][81][82][83][84][85][86][87]…”

Section: Melanoidin Degradationmentioning

confidence: 99%

“…The isolate Alcaligenes faecalis strain SAG 5 showed 72.6 % decolorization of melanoidins at optimum pH (7.5) and temperature (37 °C) on 5 th day of cultivation. The toxicity evaluation with mung bean (Vigna radiata) revealed that the raw distillery effluent was environmentally highly toxic as compared to biologically treated distillery effluent, which indicated that the effluent after bacterial treatment is environmentally safe [71]. The degradation of synthetic and natural melanoidins was studied by using the axenic and mixed bacterial consortium (Bacillus Gel filtration chromatograms of the MP solutions showed that the small molecular weight fraction of MP solution was decolorized by the strain when the large molecular weight fraction still remained in the effluent.…”

Section: Bacterial Treatmentmentioning

confidence: 99%

Biodegradation of Melanoidin from Distillery Effluent: Role of Microbes and Their Potential Enzymes

Santal¹,

Singh²

2013

Biodegradation of Hazardous and Special Products

View full text Add to dashboard Cite

Biodegradation and detoxification of melanoidin from distillery effluent using an aerobic bacterial strain SAG5 of Alcaligenes faecalis

Cited by 39 publications

References 25 publications

Decolourization of Sugar Beet Molasses Vinasse by Lactic Acid Bacteria – the Effect of Yeast Extract Dosage

Decolourization of Sugar Beet Molasses Vinasse by Lactic Acid Bacteria – the Effect of Yeast Extract Dosage

Detection of Androgenic-Mutagenic Compounds and Potential Autochthonous Bacterial Communities during In Situ Bioremediation of Post-methanated Distillery Sludge

Biodegradation of Melanoidin from Distillery Effluent: Role of Microbes and Their Potential Enzymes

Contact Info

Product

Resources

About