Screening of Anaerobic Bacteria with the Ability to Decolorize Molasses Melanoidin

Ohmomo, Sadahiro; Daengsubha, Wiwut; Yoshikawa, Hiroshi; Yui, Masaki; Nozaki, Kazuhiko; Nakajima, Tsuyoshi; Nakamura, Isei

doi:10.1080/00021369.1988.10869062

Cited by 18 publications

(29 citation statements)

References 4 publications

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“…3) while no growth has been shown at pH 9.0. Maximum decolourisation yield was noted at pH range of 4.0 -4.5 (Ohmomo et al, 1988). For Citeromyces sp.…”

Section: Effect Of Medium Phmentioning

confidence: 86%

Applications of submerged fermentation for biodegradation and decolourisation of melanoidins by an isolate Alcaligenes denitrificans SAG5

Saharan

Rani

2011

JANS

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:In laboratory conditions a bacterium was isolated, which was identified as Alcaligenes denitrificans SAG 5. . The optimum decolourisation (72.6%) of melanoidin was achieved at pH 7.5 and temperature 37 °C within 4-6 days fermentation. The toxicity evaluation of distillery effluent with mung bean (Vigna radiata) revealed that the raw effluent is highly toxic as compared to treated effluent. This indicated that the effluent after bacterial treatment is ecofriendly.

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“…3) while no growth has been shown at pH 9.0. Maximum decolourisation yield was noted at pH range of 4.0 -4.5 (Ohmomo et al, 1988). For Citeromyces sp.…”

Section: Effect Of Medium Phmentioning

confidence: 86%

Applications of submerged fermentation for biodegradation and decolourisation of melanoidins by an isolate Alcaligenes denitrificans SAG5

Saharan

Rani

2011

JANS

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“…rafinose) that were present in the molasses. Another explanation was proposed by Ohmomo et al (1988) who suggested that the LAB converted the melanoidins that were present in the molasses into lactic acid. Mussatto et al (2008) report YP/S ratios higher than 0.81 g/g, obtained with brewer's spent grain hydrolysate.…”

Section: Discussionmentioning

confidence: 99%

High density process to cultivate Lactobacillus plantarum biomass using wheat stillage and sugar beet molasses

Krzywonos

Eberhard

2011

Electro Journal of Biotech

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Background: Owing to the growing interest in biofuels, the concept of a biorefinery where biomass is converted to a variety of useful products is gaining ground. We here present how distillery waste is combined with a by-product from a sugar production, molasses, to form a medium for the growth of Lactobacillus plantarum with yields and biomass densities comparable with conventional industrial media. Such approach enables a cost-effective utilization of the problematic wastewater from ethanol and a by-product from sugar production. It is the first approach that attempts to find low-cost media for the production of Lactobacillus plantarum biomass. Results: This study suggests that sieved wheat stillage enriched by adding 1.77 g/l yeast extract and 10% molasses (v/v), with NH4OH used for pH adjustment, may be used as a media for large-scale cultivation of L. plantarum. Such composition of the medium permits a high density of lactic acid bacteria (1.6 x 10 10 cfu/ml) to be achieved. Conclusions: The use of a fermentation medium consisting of distillery wastewater and molasses to obtain value-added products (such as LAB biomass and lactic acid) is a possible step for classical ethanol production to move towards a biorefinery model production in which all by and waste products are utilized to increase produced values and reduce waste production. This enables a cost-effective utilization of the problematic wastewater from ethanol and sugar production.

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“…Out of these, Aspergillus G-2-6 was the most active strain with 75 per cent decolorization, when cultivated on a glycerol-peptone medium at 45 [0]C for three days with shaking. In successive decolorization studies also, the strain exhibited more than 60 per cent of the melanoidin decolorizing activity, thus showing stability of the strain [56]. In the studies on continuous decolorization of melonoidin solution in a jar fermentor, the strain resulted in an almost constant decolorization yield of about 70 per cent.…”

Section: Biodegradation Of Individual Colorants In Distillery Spentwashmentioning

confidence: 96%

Microbial decolorization of spentwash: a review

2008

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Spentwash is one of the most complex and cumbersome wastewater with very high BOD, COD and other organic and inorganic toxic constituents. It is dark brown colored and diffi cult to treat by normal biological process such as activated sludge or anaerobic lagooning. The color is due to the presence of melanoidins, caramels and other polymers. These compounds have anti oxidant properties which render them toxic to microorganisms. Spentwash disposal into the environment is hazardous and has a considerable pollution potential. It affects the aesthetic merit. Its decolorization by physical or chemical methods have been investigated and were found unsuitable. In the recent past, increasing attention has been directed towards utilizing microbial activity for decolorization of spentwash. This review reveals various groups of microorganisms which have potential in spentwash decolorization. The role of enzymes in decolorization and the microbial degradation of individual compounds imparting color to spentwash are also discussed.

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Screening of Anaerobic Bacteria with the Ability to Decolorize Molasses Melanoidin

Cited by 18 publications

References 4 publications

Applications of submerged fermentation for biodegradation and decolourisation of melanoidins by an isolate Alcaligenes denitrificans SAG5

Applications of submerged fermentation for biodegradation and decolourisation of melanoidins by an isolate Alcaligenes denitrificans SAG5

High density process to cultivate Lactobacillus plantarum biomass using wheat stillage and sugar beet molasses

Microbial decolorization of spentwash: a review

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