Method for detecting diarrhea shellfish toxin
2010
The invention discloses a method for detecting diarrhea shellfish toxin, which comprises the following steps: A) establishing a standard curve of depolymerization of okadaic acid (OA) induced HL-7702 hepatocyte F-actin; B) carrying out the calculation on the concentration of the OA according to the standard curve of the F-actin depolymerization of the HL-7702 hepatocyte, establishing a detection method of the hepatocyte F-actin of the diarrhea shellfish toxin to determine the possible detection limit range; C) selecting one or more of components (STX, DA and YTX) which are possibly coexist with the diarrhea shellfish to act on the HL-7702 hepatocyte, determining the specificity of the method for detecting the OA content by detecting the degree of damaging the polymerizing power of the HL-7702 hepatocyte F-actin by the above components. The detection method of the invention has the advantages: (1) taking cells as experimental subjects to avoid the using of experimental animals and conforming to the rule of 3R; (2) having high sensitivity; (3) having good specificity; (4) having good repeatability; and (5) having simple and convenient sample extraction and low matrix effects.
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