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作者对印度市场上使用的30多种食用色素作了八种微量金属的测定,结果表明有些未被政府批准使用的色素中金属含量超出了规定的最高容许浓度,对Cd、Co、Mn、Ni和Zn的含量虽未有规定,但受污染的可能性是存在的。被批准使用的9种混合色素及2种未被批准使用的混合色素(为表中所列单一色素2～3种的混合配方)的情况亦类似。对各地采集的12,515份食物样品的调查发现,有70%左右的色素是属于本次检查的18种非食用色素。作者认为食用色素的使用量虽少,但其中所含金属超过了限量,应引起重视。
The authors tested eight trace metals in more than 30 food colors used in the Indian market. The results show that some of the pigments that are not approved by the government exceed the maximum allowable concentration for Cd, Co, Mn, Ni Although the content of Zn is not specified, the possibility of contamination exists. The same is true for the nine mixed colors approved and the two mixed colors not approved for use (two to three mixed formulations listed in the table). A survey of 12,515 food samples collected from around the country found that about 70% of the pigments were 18 non-food colors under the current inspection. The author believes that although the use of food coloring is small, but the metal contained therein exceeds the limit, should be taken seriously.