Herat Regional Reference Laboratory

The oxidase test is designed for specifically detecting the presence of the terminal enzyme system in aerobic respiration called cytochrome C oxidase or cytochrome a3.

Cytochrome C oxidase is the terminal or last H2 electron acceptor in an aerobic respiratory mechanism which is composed of a number of enzymes that alternatively oxidize and reduce each other by donating or accepting electrons derived from H2.

The ability of an organism to produce the cytochrome C oxidase can be determined by using the reagent tetramethyl-p-phenylenediamine dihydrochloride impregnated in the filter disk.

The reagent serves as an artificial substrate donating electrons and thereby becoming oxidized to a deep purple compound in the presence of the enzyme oxidase and free O2.

Staphylococcus epidermis on Blood agar

لابراتوار ریفرینس حوزوی هرات یکی از معتبرترین جای تشخیص و تحقیق برای امراض در حوزه غرب می‌باشد.