Description
Specifications Table
Product Name – MacConkey Agar w/ Bromothymol Blue Quantity/Pack Size – 100 Gms Form – Powder Grade – Laboratory Grade Application – Selective and Differential Medium for Enterobacteriaceae
Product Overview
MacConkey Agar w/ Bromothymol Blue is a specialized culture medium designed for the isolation and differentiation of Enterobacteriaceae. This agar is formulated with bromothymol blue, a pH indicator that changes color in response to the acidity produced by fermenting bacteria. The medium is selective due to the presence of bile salts and crystal violet, which inhibit the growth of Gram-positive bacteria and some Gram-negative bacteria, while allowing Enterobacteriaceae to grow. The differential aspect is provided by lactose, which is fermented by lactose-fermenting Enterobacteriaceae, producing acid and changing the color of the bromothymol blue indicator. This makes it an essential tool for microbiological studies, particularly in clinical and food microbiology labs. The high-quality ingredients ensure reliable and consistent results, making it a trusted choice for researchers and educators.
FAQs
1. What is the primary application of MacConkey Agar w/ Bromothymol Blue?
It is used for the selective and differential isolation of Enterobacteriaceae.
2. What is the significance of bromothymol blue in this agar?
Bromothymol blue acts as a pH indicator, changing color in response to acid production by fermenting bacteria.
3. Is this agar suitable for Gram-positive bacteria?
No, it is selective against Gram-positive bacteria due to the presence of bile salts and crystal violet.
4. How does lactose contribute to the differential aspect of this agar?
Lactose fermentation by Enterobacteriaceae produces acid, which changes the color of the bromothymol blue indicator.
5. What makes MacConkey Agar w/ Bromothymol Blue a reliable choice for lab use?
Its high-quality ingredients ensure consistent and reliable results, trusted by researchers and educators.






