| 摘要 |
<p>A process for the extraction of an anthocyanin-type color from a natural product which comprises bringing the natural product containing said color into contact with a sulfite ion-containing aqueous solution at a temperature of 85 DEG C. or higher for 30 minutes or less, at which time the sulfite ion content of said aqueous solution firstly contacting the natural product is adjusted to at least 10,000 ppm in terms of SO2.</p> |
