FS medium

FS medium

FS medium is a solid medium for selective separation and counting of lactic acid bacteria in food. Its name comes from the founders Frazier and Snyder. The basic ingredients include peptone, yeast extract and glucose, which provide necessary nitrogen source, vitamins and carbon source; Key selective components include sodium azide and bromocresol purple indicator. Sodium azide can effectively inhibit the growth of gram-negative bacteria and some positive bacteria, while lactic acid bacteria are usually insensitive to them. Lactic acid bacteria ferment glucose to produce acid, which makes the pH of culture genes around the colony decrease from purple to yellow, which is convenient for identification and counting, and is widely used in the detection of lactic acid bacteria in fermented food, dairy products and probiotic products.

1. This product is for scientific research use only. Please do not use it for medical, clinical diagnosis or treatment, food and cosmetics, etc. Please not store it in a general residential area.

2. For your safety and health, please wear a lab coat and disposable gloves and masks when operating.

3. The experimental can be affected by a variety of factors, and the relevant treatment is limited to the product itself, and does not involve other compensation.