| 摘要 |
A beverage comprises an aqueous medium containing up to 5 ppm of transition metal ions, for example demineralised water and demineralised glucose syrup, together with 0.005 to 0.5% by weight of ascorbic acid, and sufficient naturally occurring carotenoid pigment for example crocin to provide from 1 to 250 ppm of active colouring ingredient in the beverage. The beverage has a reduced tendency to colour fade during its normal shelf life. |
