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2. Bromothymol blue - Wikipedia

   en.wikipedia.org/wiki/Bromothymol_blue

   Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator. It is mostly used in applications that require measuring substances that would have a relatively neutral pH (near 7). A common use is for measuring the presence of carbonic acid in a liquid.

3. IMViC - Wikipedia

   en.wikipedia.org/wiki/IMViC

   Bromothymol blue was added in order to reduce false positives. The citrate agar is green before inoculation, and turns blue, because of BTB as a positive test indicator, meaning citrate is utilized. The test is also prepared on a slant to maximize bacterial growth for an even better indication of the use of citrate.

4. Simmons' citrate agar - Wikipedia

   en.wikipedia.org/wiki/Simmons'_citrate_agar

   Use of citrate results in the creation of carbonates and bicarbonates as byproducts. Organisms degrading citrate must also use the ammonium salts, producing ammonia, [10] thus increasing the pH of the medium. [11] The increase in pH then causes color change in the bromothymol blue indicator, turning it blue.

5. Citrate test - Wikipedia

   en.wikipedia.org/wiki/Citrate_Test

   Bacteria are inoculated on a medium containing sodium citrate and a pH indicator such as bromothymol blue. The medium also contains inorganic ammonium salts, which are utilized as sole source of nitrogen. Use of citrate involves the enzyme citrate lyase, which breaks down citrate to oxaloacetate and acetate.

6. Cystine–lactose–electrolyte-deficient agar - Wikipedia

   en.wikipedia.org/wiki/Cystine–lactose...

   Bromothymol blue is the indicator used in the agar, it changes to yellow in case of acid production during fermentation of lactose or changes to deep blue in case of alkalinization. Lactose-positive bacteria build yellow colonies. Bacteria which decarboxylate L-cystine cause an alkaline reaction and build deep blue colonies. [1]

7. The 'Carter effect': How the former president gave cancer ...

   www.aol.com/carter-effect-former-president-gave...

   There can be side effects. Immunotherapy can kick the immune system into overdrive, causing a variety of inflammatory responses. People who develop lung inflammation may need supplemental oxygen.

8. Phthalein dye - Wikipedia

   en.wikipedia.org/wiki/Phthalein_dye

   Phthalein dyes are a class of dyes mainly used as pH indicators, due to their ability to change colors depending on pH. [1] They are formed by the reaction of phthalic anhydride with various phenols. They are a subclass of triarylmethane dyes. Common phthalein dyes include: Bromothymol blue; Bromocresol green; Bromocresol purple; Cresol Red; o ...

9. Late-stage breast cancer is rising, especially among Black ...

   www.aol.com/stage-breast-cancer-rising...

   The study, which looked at data from 2004 to 2021, found that advanced breast cancer rates have risen among women of all ages, with the sharpest increases in young women aged 20 to 39, and women ...