Illustrative image only. Actual product may vary.Lactobacilli MRS Broth
Also known as：MRS Broth
- Category
- Dehydrated Culture Media
- Pack sizes
- 500 g · 5 kg · 25 kg
- Standard methods
- ISO 15214
Data updated：2026-11-06
Brand cross-reference：BD Difco Lactobacilli MRS Broth · Oxoid MRS Broth · Merck MRS Broth（ISO 15214） Brand cross-reference
Overview
Lactobacilli MRS Broth is the liquid form of the standard MRS formulation, for activating, seed-culturing and scaling up lactobacilli, streptococci, pediococci and leuconostocs before fermentation. Polysorbate 80, sodium acetate and ammonium citrate promote lactic acid bacteria and suppress competitors, making it the most common liquid medium in probiotic development and lactic acid fermentation.
Agar or broth: which to choose
MRS Agar is used for enumeration and single-colony isolation of lactic acid bacteria, the standard choice in fermented food and probiotic quality control. MRS Broth is used for strain activation, seed culture, and pre-fermentation scale-up. The two share the same formulation base and differ only in the solidifying agent.
Product highlights
- Available in 500 g / 5 kg / 25 kg, from laboratory to industrial scale
- COA, specification sheet, and technical data sheet available; samples on request
- Manufactured in Taiwan with reliable supply
Frequently asked questions
01How does food-grade MRS differ from standard MRS?
The food-grade version is manufactured from food-grade raw materials and replaces animal-derived nitrogen sources with plant- and yeast-based alternatives. It suits fermented foods and probiotic products that require Halal certification, vegetarian labelling, or full raw-material traceability. Performance is verified against standard control strains.
02What are the equivalent brand products and standard methods?
Cross-reference: BD Difco Lactobacilli MRS Broth, Oxoid MRS Broth, Merck MRS Broth. Standard methods: ISO 15214. Formulations may differ slightly between makers; refer to the specification sheet.
03How do I request a bulk quotation, and can you provide a COA?
Yes. This product is available in 500 g, 5 kg, 25 kg. Tell us your application and volume when requesting a quotation; we reply within one working day and can supply the COA, specification sheet, and technical data sheet.
Academic citation
Products from this range have been cited as the culture media source in a peer-reviewed study by a National Taiwan University research team:
Chan et al. (2024). Single-strain probiotics enhance growth, anti-pathogen immunity, and resistance to Nocardia seriolae in grey mullet (Mugil cephalus) via gut microbiota modulation. Animal Microbiome, 6, 67. Springer Nature.
Media attribution: Tryptone Soy Broth, MRS medium, LB broth, beef extract, peptone, yeast extract, agar (STBIO, New Taipei, Taiwan)
Read the full paperUsed in these applications
Used in published research and patents
- Single-strain probiotics enhance growth, anti-pathogen immunity, and resistance to Nocardia seriolae in grey mullet (Mugil cephalus) via gut microbiota modulationAnimal Microbiome 2024 · National Taiwan UniversityTryptic Soy Broth used for Nocardia seriolae, MRS medium for lactobacilli and LB broth for Bacillus subtilis natto.
- Publications