2017
DOI: 10.4136/ambi-agua.1936
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Deproteinization: an integrated-solution approach to increase efficiency in β-galactosidase production using cheese whey powder (CWP) solution

Abstract: Whey is the liquid that results from the coagulation of milk during cheese manufacture. Cheese whey is also an important environmental pollution source. The present experiment sought to compare β-galactosidase (EC 3.2.1.23) production by Aspergillus oryzae from deproteinized and un-deproteinized CWP solutions. β-galactosidase was produced by submerged fermentation in deproteinized or un-deproteinized CWP solutions. To determine the activity of the enzyme, a reaction mixture containing cell-free extract and ort… Show more

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Cited by 5 publications
(1 citation statement)
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“…It was deproteinized, by precipitation, in order to avoid inhibition of the microalgae growth process. Deproteinization was performed by maintaining the cheese whey volume at boiling temperature for 15 min, with continuous stirring, followed by gradual cooling until room temperature, to facilitate precipitation, centrifugation, and filtration of suspended solids [ 31 ]. The deproteinized cheese whey (DCW) was analyzed to determine the composition of the main contaminants considered for investigation: lactose, total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD), as well as pH and salinity.…”
Section: Methodsmentioning
confidence: 99%
“…It was deproteinized, by precipitation, in order to avoid inhibition of the microalgae growth process. Deproteinization was performed by maintaining the cheese whey volume at boiling temperature for 15 min, with continuous stirring, followed by gradual cooling until room temperature, to facilitate precipitation, centrifugation, and filtration of suspended solids [ 31 ]. The deproteinized cheese whey (DCW) was analyzed to determine the composition of the main contaminants considered for investigation: lactose, total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD), as well as pH and salinity.…”
Section: Methodsmentioning
confidence: 99%