Comparing E1102 - Glucose oxidase vs E923 - ammonium persulfate
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Interest over time for 2 keywords in U.S. during the last 10 years.
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Popular questions
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.
What is ammonium persulfate used for?
As E923, it has been used as a flour treatment/bleaching agent, though its authorization for food use is limited and varies by country (not permitted in the EU/UK). Outside food, it’s a strong oxidizing initiator used in polymerization, etching, and hair-bleaching products.
What products contain ammonium persulfate?
You may rarely find it in some flours where permitted, labeled as ammonium persulfate or E923; many regions no longer allow it in food. It’s more commonly present in hair-bleach powders, lab reagents (e.g., gel electrophoresis), and PCB etchants.
5. what aspects of your experiment are controlled by temed and ammonium persulfate?
TEMED and ammonium persulfate generate free radicals to initiate and control the rate of acrylamide polymerization, which affects gelation time and pore size/uniformity in gels. Handle both with care—they are irritants and strong oxidizers.
Ammonium persulfate how to make solution?
For food use, consumers should not be preparing solutions of E923; its food authorization is limited. In labs it’s typically dissolved freshly in water because it decomposes—follow your protocol and the SDS for concentrations and safety.
Ammonium persulfate how to make solution cu?
Copper etching with ammonium persulfate is an electronics application, not a food use; follow the product manufacturer’s instructions for concentration and temperature and observe oxidizer safety. Food use of E923 is restricted and not permitted in the EU/UK.