Comparing E333II - Dicalcium citrate vs E1102 - Glucose oxidase
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What does glucose oxidase do?
It’s an enzyme that oxidizes glucose to D-glucono-delta-lactone (which becomes gluconic acid) while producing hydrogen peroxide and consuming oxygen; in foods it acts as an oxygen scavenger/antioxidant and can strengthen dough.
Cytochrome oxidase is used in which stage of the aerobic respiration of glucose?
Cytochrome c oxidase works in the electron transport chain (oxidative phosphorylation), the final stage of aerobic respiration; this is a different enzyme from the food additive glucose oxidase (E1102).
Glucose oxidase produces what?
Hydrogen peroxide and D-glucono-delta-lactone (which hydrolyzes to gluconic acid), while consuming oxygen.
How does glucose oxidase work?
It is an FAD-dependent oxidoreductase that binds beta-D-glucose, oxidizes it to D-glucono-delta-lactone, and reduces oxygen to hydrogen peroxide—removing oxygen and generating a mild antimicrobial oxidant.
How much hydrogen peroxide does glucose oxidase produce?
Stoichiometry is 1 mole of H2O2 per mole of glucose oxidized (about 34 mg H2O2 per mmol of glucose); in foods the actual amount formed depends on available glucose and oxygen and may be further decomposed or consumed.