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Literature summary for 3.2.1.2 extracted from

  • Badau, M.H.; Jideani, I.A.; Nkama, I.
    Amylase activities and values in hot and cold water extracts of pearl millet (2006), J. Appl. Glycosci., 53, 1-6.
No PubMed abstract available

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
starch + H2O Sorghum sp.
-
maltose + ?
-
?
starch + H2O Cenchrus sp.
-
maltose + ?
-
?

Organism

Organism UniProt Comment Textmining
Cenchrus sp.
-
pearl millet, several cultivars, overview
-
Sorghum sp.
-
cultivar ICSV 111
-

Source Tissue

Source Tissue Comment Organism Textmining
seed the enzyme activity increases progressively during seed germination Sorghum sp.
-
seed the enzyme activity increases progressively during seed germination Cenchrus sp.
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
the enzyme activity increases progressively during seed germination, different cultivars, activity in phoshate buffer extracts, the activity is decreased in hot water extracts, and highly decreased in cold water extracts, overview the hot water extracts show higher activity due to gelatinization of the starch grains Cenchrus sp.
45.95
-
96 h germination, the enzyme activity increases progressively during seed germination, overview Sorghum sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
starch + H2O
-
Sorghum sp. maltose + ?
-
?
starch + H2O
-
Cenchrus sp. maltose + ?
-
?
starch + H2O millet starch, gelatinization temperature is 61.1-68.7°C Cenchrus sp. maltose + ?
-
?
starch + H2O Sorghum starch, gelatinization temperature is 70-75°C Sorghum sp. maltose + ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Sorghum sp.
25
-
assay at Cenchrus sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
assay at, phosphate buffer Cenchrus sp.