Tryptic Soy Agar with Lecithin and Polysorbate 80
Also known as：TSALP / SCDLP Agar
- Category
- Dehydrated Culture Media
- Dissolve per litre
- 45.7 g
- Pack sizes
- 500 g · 5 kg · 25 kg
- Certifications
- Halal
Data updated：2026-11-06
- Allergens
- Milk, Soy
Overview
Tryptic Soy Agar with Lecithin and Polysorbate 80 is an agar (solid) medium, a standard general-purpose and enumeration formulation. Contains lecithin and polysorbate to neutralise disinfectant residues; used for surface and settle-plate monitoring in cleanrooms and production areas. STBIO manufactures it from food-grade raw materials in an ISO 22000 certified facility, with a COA for every batch. This is the Halal-certified version.
Choosing a general-purpose or enumeration medium
Plate Count Agar is used for total viable counts in food, water, and environmental samples. Nutrient Broth and Tryptic Soy media are the general-purpose choices for non-fastidious bacteria, with the latter richer and also used for sterility testing and environmental monitoring. Brain Heart Infusion is the richest of the three and suits fastidious organisms such as streptococci. Use the agar form for enumeration and the broth for propagation.
Product highlights
- Halal certified, suitable for the Malaysian, Indonesian, and Middle Eastern markets
- Manufactured to the standard formulation, 45.7 g per litre
- 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
01Which medium should I use for total viable counts?
Total viable counts in food and water normally use Plate Count Agar with the pour-plate method at 30 °C. Follow the incubation conditions specified by the method you are working to.
02How much powder per litre?
Use 45.7 g per litre of deionised water; preparation and sterilisation conditions are given on 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
- Sterility testingThioglycollate and Tryptic Soy media for pharmacopoeial sterility testing
- Cleanroom and production environment monitoringMedia for settle plates, contact plates, and surface sampling
- Cleanroom and ultrapure water microbial monitoring: settle plates, surfaces and water systemsStandard media for ISO 14698, USP <1231> and USP <61> monitoring