The isolates in this study had yellow and white colonies with milky appearance, while a few isolates showed transparent colonies on YEMA medium containing bromothymol blue
. According to Jordan , colonies of rhizobia are white, yellow, or pink in color, although it is rare to find yellow or pink colonies of rhizobia .
Number The name of reagent [R.sub.1] [R.sub.2] [R.sub.3] I Bromocresol green Br Br C[H.sub.3] II Bromophenol blue H Br Br in Bromothymol blue
Br CH(C[H.sub.3]) C[H.sub.3] IV Bromocresol purple Br C[H.sub.3] H V Bromocresol blue Br C[H.sub.3] Br VI o-Cresol red C[H.sub.3] H H VII p-Cresol blue H C[H.sub.3] H VIII m-Cresol purple H H C[H.sub.3]
The purposes of the current work are as follows: (i) synthesis of zero-valent iron nanoparticles (ZVINPs) with Tie Guanyin tea extract, which is native to Fujian, China, (ii) characterizations of the ZVINPs employed to analyze its morphology, size, and structure, and (iii) application of iron nanoparticles for the catalytic degradation of bromothymol blue
Hejaz-Azmi, "Extractive spectrophotometric methods for determination of diltiazem HCl in pharmaceutical formulations using bromothymol blue
, bromophenol blue and bromocresol green," Journal of Pharmaceutical and Biomedical Analysis, vol.
and carbohydrate sensitive plating media.
For both catalysts (fresh CaO and activated CaO),the bromothymol blue
indicator and the phenolphthalein indicator showed fast color change to their respective conjugated bases, while the 2,4--dinitroaniline did not show color change.
The native diazotrophic bacterial isolates and four reference strains grown in respective nitrogen free media viz, Burk's medium for Azotobacter, diluted cane juice semi solid medium for Acetobacter and NFB (Nitrogen Free Bromothymol blue
medium) for Azospirillum (Cavalcant and Dobereiner, 1989) Table-1.
Nutrient bromothymol blue
agar (NBTA) media (2.3% "Difco" nutrient agar, 0.0025% "Merck" bromothymol blue
, 0.004%, 2, 3, 5-triphenyltetrazolium) plates were incubated at 29C, and single bacterial colonies were subcultured onto new NBTA plates until no contamination was detected.
(14) The biovarieties were determined by culturing the isolates on L-canavanine glycine bromothymol blue
(CGB) selective medium (Klein et al., 2009).
Different biochemical tests like congo red, bromothymol blue
(BTB) and gram reaction were performed for these isolates.
Identification of Cryptococcus gattii by use of Lcanavanine glycine bromothymol blue
medium and DNA sequencing.
The chromatogram was dried in order to remove the traces of formic acid and was sprayed with bromothymol blue
solution prepared by dissolving 0.04 g of bromothymol blue
in 100 mL of 0.01 M sodium hydroxide (Harborne, 1973).