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Literature summary for 3.2.1.23 extracted from

  • Nakagawa, T.; Ikehata, R.; Uchino, M.; Miyaji, T.; Takano, K.; Tomizuka, N.
    Cold-active acid beta-galactosidase activity of isolated psychrophilic-basidiomycetous yeast Guehomyces pullulans (2006), Microbiol. Res., 161, 75-79.
    View publication on PubMed
Search for more literature for 3.2.1.23

Application

Application Comment Organism
nutrition the cold-active acid beta-galactosidase can be applied to the food industries, removal of lactose from refrigerated milk for people who are lactose intolerant and conversion of the lactose to glucose and galactose, which are more fermentable sugars than lactose, in whey Tausonia pullulans

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
 Tausonia pullulans
-
-

Organism

Organism UniProt Comment Textmining
Tausonia pullulans
-
-
-
Tausonia pullulans R1
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
lactose + H2O
-
 Tausonia pullulans D-glucose + D-galactose
-
 ?
lactose + H2O
-
 Tausonia pullulans R1 D-glucose + D-galactose
-
 ?
o-nitrophenyl-beta-D-galactoside + H2O
-
 Tausonia pullulans o-nitrophenol + beta-D-galactose
-
 ?
o-nitrophenyl-beta-D-galactoside + H2O
-
 Tausonia pullulans R1 o-nitrophenol + beta-D-galactose
-
 ?

Synonyms

Synonyms Comment Organism
Acid beta-galactosidase
-
 Tausonia pullulans

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
 Tausonia pullulans

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
20 60 20°C: about 50% of maximal activity, 60°C: about 40% of maximal activity Tausonia pullulans

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30
-
 1 h, stable up to Tausonia pullulans
40
-
 1 h, about 50% loss of activity Tausonia pullulans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4
-
-
 Tausonia pullulans

pH Range

pH Minimum pH Maximum Comment Organism
3 7 pH 3.0: about 90% of maximal activity, pH 7.0: about 40% of maximal activity Tausonia pullulans

pH Stability

pH Stability pH Stability Maximum Comment Organism
7
-
 6 h, stable up to Tausonia pullulans
8
-
 6 h, about 75% of maximal activity Tausonia pullulans