2019
DOI: 10.1111/ijfs.14222
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Whey valorization using transgalactosylation activity of immobilized β‐galactosidase

Abstract: Summary Whey represents a significant dairy industry by‐product that has recently received due attention based on the rich nutrient composition and significant transformation potential. Hereby, we investigated a possibility of whey lactose bioconversion into prebiotic compounds, galacto‐oligosaccharides (GOS) using β‐galactosidase transgalactosylation activity. The results showed that whey could be successfully used for GOS synthesis, since the highest GOS concentration (around 62 g L−1) was obtained batchwise… Show more

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Cited by 16 publications
(6 citation statements)
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References 48 publications
(65 reference statements)
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“…β-Galactosidases from Aspergillus oryzae, Kluyveromyces lactis , and Bacillus circulans are commonly used for commercial GOS production from lactose (Fischer & Kleinschmidt, 2021 ; Zerva et al., 2021 ). While these enzymes have been researched for GOS production from sweet and acid whey (Bolognesi et al., 2021 ; Fischer & Kleinschmidt, 2015 ; Mano et al., 2019 ; Simović et al., 2019 ), recent research has begun characterizing similar enzymes from other organisms such as Thermothielavioides terrestris (Zerva et al., 2021 ), Cryptococcus laurentii (Fischer & Kleinschmidt, 2021 ), and Pantoea anthrophila (Yañez-Ñeco et al., 2021 ). These enzymes have desirable properties such as greater thermostability, or better salt tolerance and low pH optima, which are especially useful for valorizing acid whey.…”
Section: Carbohydrate-rich Food Wastesmentioning
confidence: 99%
“…β-Galactosidases from Aspergillus oryzae, Kluyveromyces lactis , and Bacillus circulans are commonly used for commercial GOS production from lactose (Fischer & Kleinschmidt, 2021 ; Zerva et al., 2021 ). While these enzymes have been researched for GOS production from sweet and acid whey (Bolognesi et al., 2021 ; Fischer & Kleinschmidt, 2015 ; Mano et al., 2019 ; Simović et al., 2019 ), recent research has begun characterizing similar enzymes from other organisms such as Thermothielavioides terrestris (Zerva et al., 2021 ), Cryptococcus laurentii (Fischer & Kleinschmidt, 2021 ), and Pantoea anthrophila (Yañez-Ñeco et al., 2021 ). These enzymes have desirable properties such as greater thermostability, or better salt tolerance and low pH optima, which are especially useful for valorizing acid whey.…”
Section: Carbohydrate-rich Food Wastesmentioning
confidence: 99%
“…However, since lactose is difficult to digest, most of it is discarded, which in turn seriously pollutes the environment. Lactose is hydrolyzed by β-galactosidase, and when its hydrolysis rate reaches 80%, it can be consumed or used as feed, thereby avoiding wastage of resources [5,7,8]. In addition, for humans, β-galactosidase is an important glycoside hydrolase responsible for hydrolyzing dietary lactose to produce galactose Molecules 2022, 27, 4497 2 of 15 and glucose [4].…”
Section: Introductionmentioning
confidence: 99%
“…Despite these activating effects of cations even at low concentrations, lower yields of galactooligosaccharides with different compositions were obtained in dairy whey systems, compared to lactose buffer solutions [14]. Recently, whey has been used for the production of galactooligosaccharides in some research; however, no results concerning the role of cations were included [15,16].…”
Section: Introductionmentioning
confidence: 99%