Nisin Z
Also known as: E234, Lantibiotic Nisin Z, Nisin variant Z, Nisin Z, Nisin Z variant, Nisin Z-3, NisZ
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Summary
Nisin Z is a naturally occurring antimicrobial peptide produced by Lactococcus lactis; a single amino‑acid variant of nisin A (Met21→Val) used as a food preservative for its activity against spoilage and pathogenic Gram‑positive bacteria.
Mechanism of Action
Binds lipid II and forms pores in the cytoplasmic membrane of Gram‑positive bacteria, leading to cell death
Routes of Administration
Goals & Uses
- Topical wound infection managementAntimicrobial/Wound CareLow
- Antimicrobial activity against MRSAAntibacterialModerate
- Food preservation / biopreservationFood SafetyHigh
- Inhibition of Clostridium and Bacillus spore outgrowthAntibacterialModerate
- Food preservationAntimicrobialHigh
- Treatment of bovine mastitisVeterinary AntimicrobialModerate
Contraindications
- Severe peptide allergyAllergyHigh
- Disruption of normal Gram-positive microbiomeMicrobiome ConcernModerate
- Known hypersensitivity to nisin or lantibioticsAllergy/HypersensitivityHigh
Adverse Effects
- Allergic reactionImmunologicRareImmune-mediated hypersensitivity response
- Local irritationDermatologicUncommon
- Gastrointestinal discomfortGastrointestinalUncommon
- Disruption of commensal Gram-positive floraMicrobiomeUnknown
Drug Interactions
- Proteolytic enzymes (digestive)Moderate
- Other antibiotics (synergy)Low
Population Constraints
- Neonates and infantsPediatricRelative
- Infants < 1 monthAgeRelative
- Immunocompromised patientsImmunologicRelative
- Pregnant womenReproductiveRelative
Regulatory Status
- European UnionApprovedApproved: food additive (E234)Authorized under EU food additive regulations.
- United StatesApprovedApproved: food preservativeGRAS (Generally Recognized As Safe) for use in a variety of food products.
- United KingdomApprovedApproved: food additiveRecognized under UK food additive legislation.
GRAS status in the United States; approved as food additive E234 in the European Union; considered safe for general consumption but not evaluated as a therapeutic drug.
Evidence & Sources
No sources recorded yet.
Frequently Asked Questions
What is Nisin Z?
Nisin Z is a naturally occurring antimicrobial peptide produced by Lactococcus lactis; a single amino‑acid variant of nisin A (Met21→Val) used as a food preservative for its activity against spoilage and pathogenic Gram‑positive bacteria.
What is Nisin Z used for?
Nisin Z is educationally associated with: Topical wound infection management, Antimicrobial activity against MRSA, Food preservation / biopreservation, Inhibition of Clostridium and Bacillus spore outgrowth, Food preservation, Treatment of bovine mastitis. Educational only — not medical advice.
How is Nisin Z administered?
Recorded routes of administration: Oral, Topical.
What are the potential side effects of Nisin Z?
Reported adverse effects include: Allergic reaction, Local irritation, Gastrointestinal discomfort, Disruption of commensal Gram-positive flora. This list is not exhaustive — consult a qualified clinician.
Who should avoid Nisin Z?
Recorded contraindications: Severe peptide allergy, Disruption of normal Gram-positive microbiome, Known hypersensitivity to nisin or lantibiotics. Consult a qualified clinician before use.