Side-by-Side Comparison · 2026

Nisin vs Phylloseptin

Nisin vs Phylloseptin — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Nisin
Antimicrobial Peptide

Nisin A is a 34-residue lanthipeptide bacteriocin produced by Lactococcus lactis. It is the only bacteriocin approved for food use by the FDA (GRAS status, E234 in EU), widely used as a natural food preservative in dairy, canned goods, and processed meats....

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Phylloseptin
Antimicrobial Peptide

Phylloseptins are a family of short, C-terminally amidated alpha-helical antimicrobial peptides isolated from the skin secretions of South American Phyllomedusa frogs. Unlike the related dermaseptins from the same genus, phylloseptins are shorter (19 residues) and show a distinct...

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Key Parameters
Parameter Nisin Phylloseptin
Category Antimicrobial Peptide Antimicrobial Peptide
Research GRAS Food Use / Preclinical (medical) Preclinical
Half-Life Minutes-hours (pH and protease dependent) Minutes (proteolytic)
Typical Dose N/A (food use to ~500 ppm) N/A
Frequency N/A N/A
Route Topical / Oral (food use) Research only
FDA Status GRAS (food) / Investigational (medical) Not approved

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Frequently Asked Questions
What is the difference between Nisin and Phylloseptin?
Nisin: Nisin A is a 34-residue lanthipeptide bacteriocin produced by Lactococcus lactis. It is the only bacteriocin approved for food use by the FDA (GRAS status, E234 in EU), widely used as a natural food p... Phylloseptin: Phylloseptins are a family of short, C-terminally amidated alpha-helical antimicrobial peptides isolated from the skin secretions of South American Phyllomedusa frogs. Unlike the related dermaseptins ...
Which has a longer half-life, Nisin or Phylloseptin?
Nisin half-life: Minutes-hours (pH and protease dependent). Phylloseptin half-life: Minutes (proteolytic).
Can you stack Nisin and Phylloseptin?
Nisin and Phylloseptin are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.