bioautography


Also found in: Medical.

bioautography

[¦bī·ō‚ȯ′täg·rə·fē]
(analytical chemistry)
A bioassay based upon the ability of some compounds (for example, vitamin B12) to enhance the growth of some organisms or compounds and to repress the growth of others; used to assay certain antibiotics.
References in periodicals archive ?
A preliminary study of our group demonstrated a promising antioxidant and anticholinesterase activity of three Hippeastrum species (Amaryllidaceae) by bioautography method (Giordani et al.
In previous investigations, this alkaloid also showed inhibitory activity of AChE by bioautography method (Silva, 2005).
Bioautography localizes antimicrobial activity on a chromatogram using three approaches such as direct bioautography, contact bioautography and agar over lay bioautography (Hamburger and Cordell, 1987, Rahalison et al.
In comparison to bioautography other techniques provide at best, information on antimicrobial activity, they, however, do not give any qualitative information about the active components.
Consequently tannins were removed prior to the bioautography analysis.