Millipore Orange Serum Agar (OSA) is a type of culture medium used in microbiology to grow a variety of bacteria, particularly those that require a nutrient-rich medium. It is composed of enzymatic digests of animal proteins, yeast extract, and peptone, as well as orange serum, which gives the medium its distinctive orange color.
ph Value: 5.4 - 5.6 (42 g/l, H₂O, 37 °C) (after autoclaving)
Solubility: 42 g/l
Packaging: Plastic bottle, 500 g
To prepare Orange Serum Agar, the dehydrated medium is typically mixed with water and heated to dissolve the ingredients. The medium is then sterilized by autoclaving and poured into sterile Petri dishes, where it solidifies. The medium can also be used in liquid form for the growth of bacteria in suspension.
Millipore Orange Serum Agar (OSA) is a type of culture medium used in microbiology, including in the food and beverage industry, to grow a variety of bacteria. OSA is often used in the industry for the detection of microorganisms in food and beverage products and surfaces, as well as for environmental monitoring of food production facilities.
OSA is a nutrient-rich medium that promotes the growth of a wide range of microorganisms, including Gram-positive and Gram-negative bacteria. It is particularly effective for the isolation and identification of acid-tolerant bacteria, such as lactic acid bacteria, which are commonly found in fermented food products.
In the food and beverage industry, OSA is often used in combination with other culture media, such as Baird Parker Agar or Violet Red Bile Agar, to enhance the sensitivity and selectivity of bacterial detection. The use of OSA and other culture media in food testing and quality control ensures the safety and quality of food products for consumers.
| Chemical type | Microbial Culture Media |
| Brand | Merck |
| Pack size | 500 g |
