Illustrative image only. Actual product may vary.ISP Broth 4
Also known as：ISP4 · ISP Medium No. 4 Broth · ISP-4 Broth · Inorganic Salts-Starch Broth · Inorganic Salts Starch Broth · ISP4 Broth
- Category
- Dehydrated Culture Media
- Dissolve per litre
- 17 g
- Pack sizes
- 500 g · 5 kg · 25 kg
Data updated：2026-11-06
Overview
ISP Broth 4 is a broth (liquid) medium, part of the International Streptomyces Project (ISP) set for actinomycete taxonomy. It is ISP 4 inorganic salts-starch formulation, used for taxonomic description and sporulation of Streptomyces. STBIO manufactures it from food-grade raw materials in an ISO 22000 certified facility, with a COA for every batch.
The ISP range for actinomycetes
The ISP (International Streptomyces Project) range is the standard media set for the taxonomy of Streptomyces and other actinomycetes. Each number provides a different carbon and nitrogen combination for observing mycelial colour, soluble pigment, and sporulation. Taxonomic descriptions normally require several of the numbered media read together.
Product highlights
- Manufactured to the standard formulation, 17 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
01How much powder per litre?
Use 17 g per litre of deionised water; preparation and sterilisation conditions are given on the specification sheet.
02Is there a Halal certified version of this product?
Yes. This is the standard version; a Halal certified version is also produced from food-grade raw materials with Halal documentation, for compliant sourcing in Malaysia, Indonesia, and the Middle East.
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.