A low cost activated carbon was prepared from Nerium oleander leaves and tested for the adsorption of malachite green
dye from the aqueous medium.
An aliquot (3 mL) from each culture medium was withdrawn at different time intervals, and the decolorization was estimated by measuring the absorbance of the culture supernatant after centrifugation at 618, 462 and 485 nm for malachite green
, methyl orange and Congo red respectively.
Photodegradation of malachite green
and malachite green
carbinol under irradiation with different wavelength ranges, Chemosphere, 82 (2): 210 - 214, 2011.
Removal of malachite green
from aqueous solution using rambutan peel-based aztivated carbon: Equilibrium, kinetic and thermodynamic studies.
(MG) absorbs radiations of suitable wavelength and gives rise to its first excited singlet state.
and crystal violet improved the refractility of the structures the most.
dye (MG) is an N- methylated diaminotriphenylmethane dye.
The line is available in 10 bold new color shades, including: platinum silver, celadon gold, mandarin myst, concord crush, sapphire night, Aegean sea, stardust gold, malachite green
, cherry marmalade and basalt silver.
Earlier this month, Hong Kong's Food Safety Center found carcinogenic chemicals including nitrofuran and malachite green
in three of 19 samples of the company's canned pork meat.
On June 28, the US Food and Drug Administration (FDA) banned the import of certain fish species from China because of possible contamination with drugs and unsafe food additives--including nitrofuran, malachite green
and chloramphenicol--which are prohibited in food products for human consumption.
A number of dye solutions could be used, but malachite green
Government investigators found that some food factories had been using industrial raw materials, such as dyes, mineral oils, paraffin wax, formaldehyde and the carcinogenic malachite green
, in the production of flour, candy, pickles, biscuits, black fungus, melon seeds, bean curd and seafood, according to the report in the China Daily.