Comparing E920 - l-cysteine vs E1101 - Protease
Overview
Synonyms
Products
Found in 666 products
Found in 345 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 8 keywords in U.S. during the last 10 years.
Interest over time for 7 keywords in U.S. during the last 10 years.
Popular questions
What is n-acetyl-l-cysteine?
N‑acetyl‑L‑cysteine (NAC) is the acetylated form of L‑cysteine, used mainly as a mucolytic drug and as a precursor to glutathione; it is related to but not the same as the food additive E920 (L‑cysteine).
What is l-cysteine made of?
L‑cysteine is a sulfur‑containing amino acid (C3H7NO2S) with a thiol (-SH) group. Commercially, it’s obtained by hydrolyzing keratin sources (e.g., feathers/hair) or produced via microbial fermentation or synthesis.
Is cysteine l or d?
In foods and proteins it is the L‑form (E920 is L‑cysteine); the D‑form exists but is not typical in food use.
N-acetyl-l-cysteine para que sirve?
Es un derivado acetilado de la L‑cisteína que actúa como mucolítico y precursor del glutatión; se usa como fármaco para la sobredosis de paracetamol y en suplementos con efectos antioxidantes. No es el aditivo alimentario E920.
What does n-acetyl-l-cysteine do?
It thins and loosens mucus, replenishes glutathione, and provides antioxidant activity; medically it’s used to treat acetaminophen (paracetamol) overdose. It is not typically used as a food additive like E920.
What is a protease?
A protease (E1101) is an enzyme that catalyzes proteolysis—cutting peptide bonds to break proteins into smaller fragments.
What does protease do?
In foods, E1101 proteases break down proteins to modify texture and processing—for example tenderizing meat, improving dough handling, clarifying beer, and creating protein hydrolysates.
What does protease break down?
Proteases break down proteins into peptides and amino acids by hydrolyzing peptide bonds.
What is a protease inhibitor?
A protease inhibitor is a substance that blocks protease activity; some occur naturally in foods (e.g., in legumes), and others are used as drugs to inhibit specific proteases.
Where is protease produced?
Proteases are made by animals, plants, and microorganisms; for food use (E1101) they are commonly produced by microbial fermentation (e.g., Aspergillus or Bacillus) or extracted from sources like papaya or pineapple, and less often from animal tissues.