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Literature summary for 3.2.1.8 extracted from

  • Dornez, E.; Gebruers, K.; Wiame, S.; Delcour, J.A.; Courtin, C.M.
    Insight into the distribution of arabinoxylans, endoxylanases, and endoxylanase inhibitors in industrial wheat roller mill streams (2006), J. Agric. Food Chem., 54, 8521-8529.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information endoxylanase activity is positively correlated with ash and negatively correlated with starch content Bacillus subtilis
additional information endoxylanase activity is positively correlated with ash and negatively correlated with starch content Talaromyces purpureogenus
additional information endoxylanase activity level varies enormously between different flour fractions and is strongly positively correlated with ash and negatively correlated with starch content Triticum aestivum

Application

Application Comment Organism
food industry high levels of endoxylanase activity in wheat flour should be avoided as they can cause uncontrolled degradation of arabinoxylan during bread dough processing, glutenstarch separation, or refrigerated dough storage Triticum aestivum
food industry high levels of endoxylanase activity in wheat flour should be avoided as they can cause uncontrolled degradation of arabinoxylan during bread dough processing, glutenstarch separation, or refrigerated dough storage Bacillus subtilis
food industry high levels of endoxylanase activity in wheat flour should be avoided as they can cause uncontrolled degradation of arabinoxylan during bread dough processing, glutenstarch separation, or refrigerated dough storage Talaromyces purpureogenus

Inhibitors

Inhibitors Comment Organism Structure
Triticum aestivum xylanase inhibitor inhibits only microbial endoxylanases Bacillus subtilis
xylanase inhibiting protein inhibits only fungal endoxylanases Talaromyces purpureogenus

Organism

Organism UniProt Comment Textmining
Bacillus subtilis P18429
-
-
Talaromyces purpureogenus Q9P8J1
-
-
Triticum aestivum
-
50% Belgian, 35% German, and 15% French wheat varieties
-

Source Tissue

Source Tissue Comment Organism Textmining
germ
-
Triticum aestivum
-
kernel largest part of the endoxylanases is located in the outer wheat kernel layers Triticum aestivum
-
additional information flour Triticum aestivum
-
additional information wheat-kernel, most wheat-kernel-associated endoxylanases are from microbial origin Bacillus subtilis
-
additional information wheat-kernel, most wheat-kernel-associated endoxylanases are from microbial origin Talaromyces purpureogenus
-
seed coat bran fractions are significantly richer in endoxylanase activity levels than germ and and, even more so, than flour fractions Triticum aestivum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
arabinoxylan + H2O
-
Triticum aestivum ?
-
?
arabinoxylan + H2O
-
Bacillus subtilis ?
-
?
arabinoxylan + H2O
-
Talaromyces purpureogenus ?
-
?

Synonyms

Synonyms Comment Organism
endoxylanase
-
Triticum aestivum
GHF 10 endoxylanase
-
Talaromyces purpureogenus
GHF 11 endoxylanase
-
Bacillus subtilis