crystal violet


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crystal violet

[¦krist·əl ′vī·lət]
(organic chemistry)
References in periodicals archive ?
D) Colonies stained with crystal violet were destained, and absorbance was measured on a plate reader at 584 nm; values represent the ratio of absorbance to the number of CFUs.
Of the three counting techniques, the crystal violet assay gave consistently and significantly higher value than LDH (p<0.
05% crystal violet detected the mucosal pit pattern--important for making a histological diagnosis--at the highest rate (93%) of all methods.
Table 1: Formulation containing crystal violet dye and polymers Material Name % in Formulation 1 Crystal Violet Dye 0.
These strains showed negative responses in tests for ornithine and lysine decarboxylase, growth in media containing crystal violet or 10% NaCl, growth at 37[degrees]C and use of [beta]-alanine, malonate, or propanol as sole carbon sources.
Q In reviewing the CAP checklist for inspection, I noticed a section regarding use of a stain, crystal violet or methelene blue, as an alternate way to distinguish red cells from white cells.
After three washes with PBS, the bound bacteria were fixed with methanol, stained with crystal violet, and visualized under a light microscope.
BRING: iodine, SAFRAMINE, CRYSTAL VIOLET, ALCOHOL-ACETONE;
Alteration in membrane permeability was found by the increase of crystal violet uptake when the bacteria were incubated with twice the MIC levels of the essential oil.
Other Enterobacteriaceae appear colourless, or purple as a result of crystal violet uptake from the medium.
The bacterial biofilm formation till date has been estimated using the crystal violet stain, the technique is qualitative and largely inconsistent as a quantitative measure.
The conventional method for performing Gram's stain begins with a thin, air-dried, heat-fixed preparation on a glass slide that is flooded with crystal violet and allowed to sit for at least 30 seconds (see Table 1, above).