Description

Lactococcin A is a potent, ribosomally synthesized antimicrobial peptide (bacteriocin) produced by certain strains of *Lactococcus lactis*. This compound matters for its highly specific bactericidal activity against closely related Gram-positive bacteria, making it a valuable tool for targeted microbial control. It is needed by researchers in microbiology and food science, as well as by developers in the food preservation and probiotic industries seeking natural biopreservatives.

Application

• Food Biopreservation: Used in research and development for inhibiting spoilage and pathogenic bacteria in dairy, meat, and fermented food products.
• Probiotic Research: Studied for its role in bacterial competition and colonization within microbial communities and gut models.
• Microbiological Studies: Serves as a model bacteriocin for investigating pore-formation mechanisms, membrane disruption, and structure-activity relationships.
• Starter Culture Protection: Employed in dairy fermentations to protect desirable starter cultures from phage infection or competitive bacteria.
• Therapeutic Agent Development: Explored in preclinical research for its potential as a narrow-spectrum antimicrobial agent against specific bacterial targets.
• Diagnostic Tool Development: Utilized in the creation of selective assays and biosensors for detecting specific bacterial strains.

Basic Information

Product Name	Lactococcin A
CAS No.	138860-83-0
Molecular Formula	C186H317N55O57S
Molecular Weight	4258.0 g/mol
Synonyms	Lactococcin A; Bacteriocin Lactococcin A; Lactococcus lactis bacteriocin A; Lactococcin; LcnA; Antimicrobial peptide LcnA
EINECS	Contact for details

Quality Control

Our Lactococcin A is produced and handled under stringent quality protocols to ensure batch-to-batch consistency and biological activity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, potency, and microbiological specifications. We adhere to relevant quality management standards to support research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below for long-term stability. This product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Potency (Microbial Assay)	Contact for details
Endotoxin Level	< 10 EU/mg
Water Content (KF)	< 5.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.