Illustrative image only. Actual product may vary.EC Broth
Also known as：EC
- Category
- Dehydrated Culture Media
- Dissolve per litre
- 37 g
- Pack sizes
- 500 g · 5 kg · 25 kg
Data updated：2026-11-06
Brand cross-reference：BD Difco EC Medium · Oxoid EC Broth · Merck EC Broth（ISO 7251、FDA BAM） Brand cross-reference
Overview
EC Broth is a broth (liquid) medium, a selective medium for food and clinical testing that suppresses competing flora and makes target colonies recognisable. Bile salts suppress competitors; incubated at elevated temperature to confirm faecal coliforms and E. coli. STBIO manufactures it from food-grade raw materials in an ISO 22000 certified facility, with a COA for every batch.
How selective media fit into the testing workflow
Pathogen testing normally runs in three stages: a pre-enrichment medium such as Buffered Peptone Water repairs injured cells and raises numbers, a selective enrichment then suppresses competing flora, and finally a selective differential agar isolates the target colonies. Selective agents are typically bile salts, dyes, or antibiotics; differential agents make target colonies develop a characteristic colour or morphology. Choose the combination specified by the method you follow.
Product highlights
- Manufactured to the standard formulation, 37 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
FDA BAM methods
This product corresponds to a medium used in the chapters of the US FDA Bacteriological Analytical Manual (BAM), the reference methods for FDA regulatory testing. Follow the current online edition of each chapter.
- FDA BAM Chapter 4: Enumeration of Escherichia coli and the Coliform BacteriaBAM Chapter 4Confirmation / biochemicalNamed in the method as：EC broth (45.5 °C)
BAM specifies methods and media formulations; it does not certify brands. Add supplements as the chapter requires, and verify media against reference strains under your quality system.
Frequently asked questions
01Does this medium meet FDA BAM methods?
BAM specifies methods and formulations, not brands. This product corresponds to a medium used in: FDA BAM Chapter 4: Enumeration of Escherichia coli and the Coliform Bacteria（BAM Chapter 4）: Confirmation / biochemical. It is manufactured to the standard formulation and ships with a COA per batch; add supplements as the chapter requires and follow the current online edition.
02Can selective media be autoclaved?
Not always. Some media containing dyes or selective inhibitors lose their selectivity if overheated and should only be heated until fully dissolved, without autoclaving. Follow the preparation instructions for this product, and contact us if you are unsure.
03How much powder per litre?
Use 37 g per litre of deionised water; preparation and sterilisation conditions are given on the specification sheet.
04What are the equivalent brand products and standard methods?
Cross-reference: BD Difco EC Medium, Oxoid EC Broth, Merck EC Broth. Standard methods: ISO 7251, FDA BAM. Formulations may differ slightly between makers; refer to the specification sheet.
05Is 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.
06How 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.
Used in these applications
Further reading
- FDA BAM Culture Media Cross-Reference: Which Media Each BAM Chapter Uses and the STBIO EquivalentAerobic plate count, coliforms and E. coli, Salmonella, Listeria monocytogenes, Staphylococcus aureus, Bacillus cereus, Vibrio, Clostridium perfringens, yeasts and moulds and Cronobacter: the media named in each FDA Bacteriological Analytical Manual chapter, matched to Taiwan-made dehydrated media for US laboratories qualifying a second source.
- Which Culture Media Do Taiwan FDA Food Microbiology Methods Specify? Cross-Reference for 21 Announced MethodsAerobic plate count, coliforms, E. coli, Enterobacteriaceae, Salmonella, Staphylococcus aureus, Listeria monocytogenes, lactic acid bacteria, yeasts and moulds, Bacillus cereus, Vibrio parahaemolyticus, Clostridium perfringens and Cronobacter: the media named in each Taiwan FDA (TFDA) announced method, matched to Taiwan-made products.