| 摘要 |
<p>Curcumin is employed for the purpose of detecting and warning of the presence of cyanide in a food, drug or other oral composition. Curcumin may be added to the composition or it may be incorporated in packaging material, preferably on or near the side which contacts the product packaged therein. In the presence of cyanide, the curcumin displays a color change of at least a portion of the food, drug or oral composition, the packaging material or both. The color change is sufficient to be detected by an observer thereby providing a warning of cyanide adulteration of the product. A printed message means may also be provided to warn against consumption of the composition upon detection of the color change.</p> |
