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更多关于美国 FDA 21 CFR 第 73 部分的内容，请详见美国FDA 21 CFR 第73部分关于免除产品证书的食品用着色剂种类汇总
§ 73.275 Dried algae meal.
（a） Identity. The color additive dried algae meal is a dried mixture of algae cells （genus Spongiococcum, separated from its culture broth）, molasses, cornsteep liquor, and a maximum of 0.3 percent ethoxyquin. The algae cells are produced by suitable fermentation, under controlled conditions, from a pure culture of the genus Spongiococcum.
（b） Uses and restrictions. The color additive dried algae meal may be safely used in chicken feed in accordance with the following prescribed conditions:
（1） The color additive is used to enhance the yellow color of chicken skin and eggs.
（2） The quantity of the color additive incorporated in the feed is such that the finished feed:
（i） Is supplemented sufficiently with xanthophyll and associated carotenoids so as to accomplish the intended effect described in paragraph （b）（1） of this section; and
（ii） Meets the tolerance limitation for ethoxyquin in animal feed prescribed in §573.380 of this chapter.
（c） Labeling. The label of the color additives and any premixes prepared therefrom shall bear in addition to the information required by §70.25 of this chapter.
（1） A statement of the concentrations of xanthophyll and ethoxyquin contained therein.
（2） Adequate directions to provide a final product complying with the limitations prescribed in paragraph （b） of this section.
（d） Exemption from certification. Certification of this color additive is not necessary for the protection of the public health and therefore batches thereof are exempt from the certification requirements of section 721（c） of the act.
§73.275 藻类干粉
（a）特性：着色剂藻类干粉，是一种藻细胞（Spongiococcum属，由其培养液分离而得）、糖蜜、玉米浆和不超过0.3%的乙氧基喹组成的干混合物。藻细胞由纯Songiococcum属的培养液在控制条件下发酵而得。
（b）使用和限制条件：着色剂藻类干粉可安全地用于鸡饲料，但应符合下列规定条件：
（1）这种着色剂用于加深鸡皮和鸡蛋的黄色。
（2）这种着色剂在饲料中的混入量，应使饲料成品能达到：
（i）作为叶黄素和类胡萝卜素的增补料，能达到本节（b）（1）规定的效果。
（ii）乙氧基喹在动物饲料中的用量，应符合本章§573.380中所规定的允许限量。
（c）标签标注方式：本着色剂和任何混有本着色剂的预混合物，其标签除本章§70.25中规定所需标明的资料之外，还应标明：
（1）其中所含叶黄素和乙氧基喹的浓度情况声明。
（2）详细的使用说明，以保证成品能完全符合本章（b）中所规定的限制条件。
（d）免除产品证书：本着色剂免除产品证书以保护公众健康。所生产的每一批产品也免除按法规§721（c）中所规定的需要产品证书。
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