enzymes 1
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endogenous
enzymes that are already there
exogenous
enzymes that are added
enzyme class 1: oxidoreductases
oxidation-reduction reactions
enzyme class 2: transferases
remove and transfer of functional groups
hydrolases
cleavage of bonds with introduction of water
lyases
cleavage of bonds (no H2O); introduce double bond
isomerase
rearrangements
ligases
formation of a linkage, with the use of ATP
why will the inactivation rate go up when heating?
because of irreversible inactivation
starch constist of:
• amylose (alpha-D-(1,4) linked glucosyl units) • amylopectin (alpha-D-(1,4) & alpha-D-(1,6) glucosyl units)
which enzymes are needed to degrade starch completely to glucose?
glucoamylase –> exo-enzyme alpha-amylase –> endo-enzyme