Malt Extract
Also known as：Malt Extract Powder · Dried Malt Extract · Bacteriological Malt Extract
Used as a source of carbohydrates and growth factors in culture media for analytical microbiology and in industrial fermentation processes.
- Category
- Peptones & Protein Hydrolysates
- pH (25 °C)
- 4.8 – 5.8
- Appearance
- Beige powder
- Pack sizes
- 500 g · 5 kg · 25 kg
- Raw material
- Malt
- Certifications
- ISO 22000 · Non-GMO · Animal-free · Clean Label · Allergen-free
Data updated：2026-11-06
Overview
A beige powder obtained by extraction and purification of malted barley. Rich in maltose and other carbohydrates, it also supplies nitrogenous compounds, vitamins, and growth factors. Raw materials are of plant origin.
Choosing a medium for yeasts and moulds
Potato Dextrose Agar and Sabouraud Dextrose Agar are the two general-purpose media most often used for yeasts and moulds. The former promotes mycelial growth and sporulation for morphological work; the latter's low pH itself suppresses bacteria. Malt-based media suit the cultivation and maintenance of yeasts, while the Czapek range is used for the taxonomy of filamentous fungi such as Aspergillus. Broths are for propagation, agars for enumeration and isolation.
Specifications
| Parameter | Specification |
|---|---|
| Appearance | Beige powder |
| Reducing sugars (as maltose) | ≥ 60.0 % |
| pH (2 % solution) | 4.8 – 5.8 |
| Loss on drying | ≤ 8.0 % |
| Chlorides (as NaCl) | ≤ 1.0 % |
| Total aerobic microbial count | ≤ 10,000/g |
| Salmonella | absence/25g |
| Escherichia coli | absence/10g |
| Yeasts and moulds | ≤ 100/g |
Release specifications. Actual values are reported on the COA supplied with each batch.
Product highlights
- Food-grade raw materials, produced in an ISO 22000 certified facility
- Non-GMO, Clean Label, Animal-origin-free (AOF)
- 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
Food grade versus laboratory grade
Most culture media suppliers use laboratory-grade raw materials, which are held to lower standards for heavy metal residues, microbial contamination control, and traceability. That is adequate for pure research but not for applications with stricter raw-material requirements. STBIO manufactures with food-grade raw materials throughout, in a facility certified to ISO 22000 food safety management.
- Food microbiology laboratories working to ISO 17025 or equivalent requirements
- Biotech manufacturers exporting fermentation products and needing full raw-material traceability
- Organisations with ESG or compliance audit requirements across their supply chain
- Companies sourcing both Halal and non-Halal products who need one consistent material grade
Frequently asked questions
01Do I need to suppress bacterial growth in fungal testing?
It depends on the sample. For foods or environmental samples with high bacterial loads, the pH is usually lowered or antibiotics are added to suppress bacteria. Follow the requirements of your chosen method; we are happy to advise.
02Is it free of animal-derived components?
Yes. This product is animal-origin-free, suitable for animal-free formulations and Halal requirements; a declaration is available on request.
03Is the raw material non-GMO?
Yes. The raw material is non-GMO; the supplier declaration can be provided with the COA.
04Can it be used for food-grade applications?
Yes. It is made from food-grade raw materials in an ISO 22000 certified facility and is suitable for culturing starters for fermented products that are consumed directly.
05How 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 published research and patents
- The Triterpenoid High-Performance Liquid Chromatography Analytical Profiles of the Mycelia of Ganoderma lucidum (lingzhi)Microbiology Research 2023 · Double Crane GroupMalt Extract used in solid-state fermentation of Ganoderma lucidum mycelia.
- Publications
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.
- Dehydrated Culture Media (DCM) ApplicationsDCM from STBIO MEDIA is widely used in food microbiology testing, pharmaceutical and biotech quality control, clinical diagnostics, industrial fermentation…