Oxoid™ Orange Serum Agar 500g

Oxoid Orange Serum Agar works by providing:

1. A Selective Low‑pH Environment

The intrinsic low pH of orange serum restricts growth to acid‑tolerant organisms, including:

• Lactic acid bacteria (e.g., Lactobacillus plantarum, L. brevis)
• Leuconostoc species
• Yeasts and moulds

These organisms are commonly responsible for spoilage of citrus-based foods and beverages.

2. Nutrient Components Supporting Optimal Recovery

The medium contains:

• Tryptone – supplying amino acids and nitrogenous compounds
• Yeast extract – providing B‑complex vitamins and growth factors
• Glucose – serving as an energy and fermentable carbohydrate source
• Orange serum – enhancing recovery of acid-tolerant microorganisms

-Its low pH environment and nutrient formulation allow precise detection of organisms that survive in acidic citrus matrices, improving confidence in spoilage assessments. 

Proven Superior Performance
-Backed by comparative studies demonstrating enhanced recovery compared to alternative media, making it a trusted choice for citrus-focused microbiology labs.

Versatile Application Range

-Ideal for:

Routine QC
Product development
Environmental and packaging monitoring

- Supports Fast, Accurate Enumeration

Standard plate count methodology is easily applied, enabling:

Rapid colony-forming unit (CFU) determination
Reproducible microbial load tracking over time

Easy Preparation and Standardized Performance

Dehydrated form allows simple preparation and consistent batch‑to‑batch results, ensuring reliability in regulated laboratory environments.