Scientific Data

Label Guarantee

100 Billion CFU per gram

Maximum Concentration

600 Billion CFU per gram


Anaerobic preferred, but will grow aerobically

Viable (Optimal) pH Range

6.8 to 5.0 (~6.5)

Viable (Optimal) Temp. Range

22°C to 40°C (30°C)

Metabolites Produced

Lactic acid, including L-(+)-Lactic Acid (aka S-Lactic Acid), D-(-)-Lactic Acid and antimicrobial compounds including Nisin

Resources Utilized

Arginine, Fructose, Galactose, Glucose, Glucosamine, Glutamate, Lactose, Maltose, Mannitol, Mannose, Methionine, Ribose, Sucrose, Trehalose, and Valine. Hydrolysis on arginine.

The information contained in this documentation is true and accurate to the best of MicroSynergies® knowledge. Recommendations made are to be used as guidelines only and are accepted at the user’s risk; user must investigate and establish the suitability of all recommendations under user’s actual conditions.

Availability: In-Production/In-Stock

Organism Overview

Lactococcus lactis ssp. lactis is unique because it can grow both aerobically and anaerobically (both in the presence or absence of oxygen). This is an uncommon trait for nearly any commercially produced bacteria culture. Because of this, L. lactis ssp. lactis can continue to work in volatile conditions.

This organism can also produce Nisin, an antibiotic-adjacent substance that can prohibit pathogens such as Listeria, Staphylococcus, and Clostridium, reducing butyric acid and its odors.

In silage inoculants, L. lactis significantly reduces the growth of yeasts and molds and improves dry matter recover in the top layer of forage.

Available Strains

  • MicroChoice® Lactococcus lactis ssp. lactis MCLLL-pAW

  • Lactococcus lactis ssp. lactis LLL-pAI™

Additional Strain Information

  • Non-GMO Project Verified

  • cGMP

  • NSF

Approved Use


  • Human

  • Livestock

  • Companion Animals

  • Agriculture

Commercial Application

  • Direct-Fed Microbials

  • Companion Animals

  • Functional Foods

  • Human Supplements

  • Human Therapeutics

  • Agricultural (e.g. silage inoculants)

  • Zoological

Market Access

  • USDA


  • U.S. FDA

  • QPS (Europe: EU/EEA)

  • EFSA (Europe: EU/EEA)

  • Health Canada for Human and Verinary Use

  • Others

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Lactococcus lactis ssp. lactis