Optimization of biomass production with copper bioaccumulation by yeasts in submerged fermentation

Arakaki, Andréa Haruko; Vandenberghe, Luciana Porto de Souza; Soccol, Vanete Thomaz; Masaki, Ryu; Filho, Ernani Francisco da Rosa; Gregório, Alexsandro; Soccol, Carlos Ricardo

doi:10.1590/s1516-89132011000500021

Cited by 11 publications

(7 citation statements)

References 21 publications

(12 reference statements)

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“…Our results showed that the highest value for laccase activity (14052 U/L) was obtained with sugarcane molasses. This residue has 540 g/L total sugars (Rodrigues et al, 2009), 70 to 91% of which is sucrose, and 2 to 4% is glucose (Arakaki et al, 2011). For A. blazei, the easily assimilated substrates present in sugarcane molasses seem to increase the laccase production.…”

Section: Selection Of Alternative Substratesmentioning

confidence: 99%

“…The sugar and ethanol industry produces different residues and many of them have great potential for bioprocesses application (Pandey et al, 2000). Sugarcane molasses is dark syrup obtained during sugar production from sugarcane or beets, resulting from the final stage of crystallization from which further recovery of sugar is no longer economically viable (Arakaki et al, 2011). Sugarcane molasses has an average of 50% total sugars in which sucrose predominates (Villavicencio et al, 1999;Feltrin et al, 2000;Arakaki et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Sugarcane molasses is dark syrup obtained during sugar production from sugarcane or beets, resulting from the final stage of crystallization from which further recovery of sugar is no longer economically viable (Arakaki et al, 2011). Sugarcane molasses has an average of 50% total sugars in which sucrose predominates (Villavicencio et al, 1999;Feltrin et al, 2000;Arakaki et al, 2011). The production of sugarcane in Brazil in 2012/2013 harvest reached 589 million tons, yielding from 23 to 35 tons of molasses (CONAB, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Agaricus blazei laccase production by submerged cultivation with sugarcane molasses

Valle¹,

Vandenberghe²,

Santana³

et al. 2014

Afr. J. Microbiol. Res.

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Laccases are copper polyphenol oxidases that are interesting for several applications such as in the food industry, sewage treatment and decolorization. The use of agro-industrial byproducts allows bioprocesses development for the production of large quantities at viable cost enzymes. In this study, the laccase production of Agaricus blazei was optimized in submerged cultivation (SmC). First, the following agro-industrial substrates were evaluated: sugarcane molasses, soybean molasses, coffee husks, soybean husks and pellet citrus pulp; and then these nitrogen sources: urea, ammonium sulfate, yeast extract. For the optimization of laccase production, a Plackett-Burman and 2 (4-1) incomplete factorial designs were used to evaluate the effect of KH 2 PO 4 , MgSO 4 , KCl, FeSO 4 , ZnSO 4 and the ethanol on laccase activity, and for the optimization of sugarcane molasses, urea, MgSO 4 and ethanol concentrations. Finally, laccase production kinetics was determined. The best substrate for laccase production by A. blazei was sugarcane molasses. After optimization, it was found that laccase activity of 9635 U/L was obtained in medium with sugarcane molasses (6 g/L), urea (1.5 g/L), MgSO 4 (12 mM), ethanol (1.2 mM) at 28°C and pH 8.0 during 10 days of cultivation. The results indicate that sugarcane molasses is a promising substrate for A. blazei laccase production.

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Section: Selection Of Alternative Substratesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimization of Agaricus blazei laccase production by submerged cultivation with sugarcane molasses

Valle¹,

Vandenberghe²,

Santana³

et al. 2014

Afr. J. Microbiol. Res.

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“…This agrees with the findings of Chinedu et al (2011) where the concentration of nitrogen was varied for improved production of cellulase by Aspergillus niger, Penicilliumchrysogenumand Trichodermaharzianum. Arakaki et al (2001) also found improved biomass production in yeasts grown under submerged fermentation when nitrogen concentration was increased. The effectiveness of nitrogen in this study might be because nitrogen was one of the major elements required for nucleic acid synthesis in microorganisms during the biosynthesis of lactic acid.…”

Section: Isolation and Identification Of Test Organismsmentioning

confidence: 85%

Biochemical analysis of some fruit peels and comparison of Lactic acid production by authochthonous Lactic acid bacteria using fruit peels

Arekemase

Adetitun

Ahmed

2020

Sri Lankan J. Biol.

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1. Introduction Fruit based industry produces a large volume of solid and liquid waste. These pose increasing disposal and pollution problems (high BOD or COD) and represents loss of valuable biomass and nutrients (Mridul&Preethi, 2014).Disposal of wastes from fruit-canning industries has been a problem due to high transportation costs and limited availability of landfills, as these byproducts carry no commercial value, they are often discharged in places they ought not to be disposed (Pradeep et al., 2014). This particularly occurs where there is a lack of legislation and their enforcement on waste disposal (Omojasolaet al., 2009). These wastes directly affect environmental agencies and municipalities because food waste is a primary source of methane gas in landfills (Gunders, 2012). Recycling fruit-waste to develop new products has received much attention lately. Organic waste treatment processes (Purkayastha, 2012) and anaerobic digestion processes (Shin et al., 2010; Dai et al., 2013; Bernstadet al., 2013) are two promising technologies used in this regard. Presently, the main use of such domestic food waste is the production of valuable compounds by the controlled break down of the waste by microorganisms (Rounsefellet al., 2013). Lactic acid has gained importance for its application in food, feed, chemical, pharmaceutical and beverage industries (Ray & Swain, 2011). Most important application of lactic acid is its use

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Section: Concentration Of C Arietinum (%)mentioning

confidence: 99%

Production of extra cellular enzymes by microbial strains in molasses and additives supplemented fermentation media

Jenilarani¹,

Parthasarathy²,

Dhasarathan³

et al. 2015

Afr. J. Microbiol. Res.

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Optimization of biomass production with copper bioaccumulation by yeasts in submerged fermentation

Abstract: The objective of this work was to study the production of biomass with copper bioaccumulation in submerged fermentation using sugarcane molasses.

Cited by 11 publications

References 21 publications

Optimization of Agaricus blazei laccase production by submerged cultivation with sugarcane molasses

Optimization of Agaricus blazei laccase production by submerged cultivation with sugarcane molasses

Biochemical analysis of some fruit peels and comparison of Lactic acid production by authochthonous Lactic acid bacteria using fruit peels

Production of extra cellular enzymes by microbial strains in molasses and additives supplemented fermentation media

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