title: [Advancement of colloidal gold chromatographic technique in screening of ochratoxin A].
abstract: Ochratoxin A (OTA) is a toxic secondary metabolite mainly produced by Aspergillus and Penicillium species, existing in a variety of foodstuffs and Chinese medicines. OTA is difficult to be detected in practice because of the characteristics such as trace amounts, toxicity, existing in complex matrices. In the numerous detection technologies, colloidal gold chromatographic techniques are highly sensitive, specific, cost-effective and user-friendly, and are being used increasingly for OTA screening. Recently, with the development of aptamer technology and its application in chromatographic technique, a newly colloidal gold aptamer chromatographic technique has been developed. This review elaborates the structures and principles of both traditional and newly colloidal gold chromatographic techniques, focuses on newly colloidal gold aptamer chromatographic technique, summarizes and compares their use in rapid detection of OTA. Finally, in order to provide a reference for better research of related work, the development trends of this novel technique are prospected.
authors.forename: Wei-lu
authors.initials: WL
authors.lastname: Zhou
authors.forename: Yu-ting
authors.initials: YT
authors.lastname: Wang
authors.forename: Wei-jun
authors.initials: WJ
authors.lastname: Kong
authors.forename: Mei-hua
authors.initials: MH
authors.lastname: Yang
authors.forename: Ming
authors.initials: M
authors.lastname: Zhao
authors.forename: Zhen
authors.initials: Z
authors.lastname: Ou-Yang
mesh_terms: D001483:Base Sequence; D002845:Chromatography / Q000379:methods*; D017979:Gold Colloid / Q000737:chemistry*; D008969:Molecular Sequence Data; D009793:Ochratoxins / Q000032:analysis*
chemical_list: D017979:Gold Colloid; D009793:Ochratoxins; C025589:ochratoxin A