Guar Extract
- Category
- Peptones & Protein Hydrolysates
- Pack sizes
- 500 g · 5 kg · 25 kg
- Raw material
- Guar
- Certifications
- ISO 22000 · Halal
Data updated：2026-11-06
Overview
Guar Extract is a guar-derived extract, used as a nitrogen and growth-factor source in culture media. It is suited to the cultivation of lactic acid bacteria and probiotics. High in B-group vitamins, high in nucleotides (I+G). Supplied by STBIO MEDIA with a COA for every batch; samples and specifications are available on request.
Choosing a plant peptone by raw material
Plant peptones contain no animal components, which suits Halal, vegetarian and animal-free formulations; raw materials differ in amino acid profile and allergens. Rice peptone carries a low allergen risk and suits gluten-free and hypoallergenic formulations. Pea and mung bean peptones contain no soy or gluten and often replace soy peptone. Wheat peptone is naturally rich in glutamine but contains gluten. Guar peptone is common in industrial fermentation. Plant peptone blends combine several raw materials designed for a given use. To avoid a particular allergen, check the allergen field on the product page first.
Product highlights
- Food-grade raw materials, produced in an ISO 22000 certified facility
- B-vitamin rich, High 5'-nucleotides (I+G)
- 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
01Can plant peptones fully replace animal peptones?
In most fermentation and cell culture it can, but it needs verifying. Animal peptones have an amino acid profile closer to microbial needs, and a single plant source may run low in some amino acids; the usual approach is to combine two plant peptones (pea with rice, for example) or use a plant peptone blend. Trial and compare growth curves and product.
02Which organisms is it suitable for?
Lactic acid bacteria, Probiotics. See the cultural response table and the specification sheet.
03Can 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.
04How 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
- Probiotic and lactic acid bacteria fermentationFood-grade MRS media and dedicated nitrogen sources from strain activation to production scale-up
- Economical & Highly Nutritious Plant Protein SeriesCost-effective, highly nutritious plant protein nitrogen sources with good solubility and consistent quality, replacing poorly soluble soy protein isolate and variable soy milk. For food, agricultural and industrial microbial fermentation.
- Clean Label & Animal-Free Nutrient SeriesAnimal-free, non-GMO, allergen-controlled and Halal-certifiable plant-based nutrients for food, biotechnology and specialised fermentation processes that require a clean label.
- High Cell Density Fermentation Nutrient SeriesBalanced, efficient nutrients that support high-cell-density cultivation, increasing cell concentration, biomass and volumetric productivity. For E. coli, Bacillus and other industrial fermentation processes.