| 摘要 |
ANTHOCYANIN COLORANT FROM GRAPE POMACE Grape pomace is contacted with an aqueous extraction solvent containing HSO3- ions to extract anthocyanin-(HSO3) complex. The complex is recovered by treating the liquid extract phase with a non-ionic adsorbent to adsorb the complex. Anthocyanin colorant, free of the HSO3-, ions is recovered by elution with an acidified organic solvent for anthocyanin. The anthocyanin colorant may be provided in dry form by drying the solvent solution. |
