⚠️ CRITICAL FOOD COMPLIANCE AUDIT REQUIRED
L-Cysteine
Food Additive Code: E920 | Standard Classification: OIC/SMIIC 1:2019
1. Technical Overview & Food Applications
Traditionally extracted by boiling collected human hair or duck feathers in hydrochloric acid. Islamic jurisprudence universally bans human hair derivatives in food, making certified bio-fermentation the only compliant path.
Primary Food Applications: Industrial bread baking, pizza crusts, flour treatment, bagel elasticity.
2. Halal Compliance & Critical Non-Conformance Vectors
Hidden Biological & Solvent Risks
Acid hydrolysis of human barber hair (strictly prohibited) or slaughterhouse duck/poultry feathers
Approved Halal Alternatives
Microbial fermentation L-Cysteine (E. coli mutant non-animal process), Ascorbic Acid (Vitamin C)
3. Scientific Auditing & Testing Protocol
| Audit Metric | Circle H Food Verification Specification |
|---|---|
| International Standard Verdict | Human-origin L-Cysteine is completely Haram under Hurmat Al-Insan; poultry requires Halal slaughter |
| Laboratory Testing Protocol | Supply-chain feedstock audit, microbiological fermentation verification & optical rotation testing |
| Chain of Custody & Abattoir Audit | 100% verified Islamic slaughter (*Dhabihah*) traceability for ruminant derivatives; complete avoidance of porcine slaughterhouse co-products. |
| Cross-Contamination & Solvent Limits | Strict limit on residual ethanol in finished food (<0.5% or <0.1% per national standards); verified non-alcoholic flavor carriers. |
Certify Your L-Cysteine Food Supply Chain
Ensure seamless customs clearance across all 57 OIC member states, GCC markets, and ASEAN food import authorities under Circle H International certification.