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更多關于美國 FDA 21 CFR 第 73 部分的內容，請詳見美國FDA 21 CFR 第73部分關于免除產品證書的食品用著色劑種類匯總
§ 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 藻類干粉
（a）特性：著色劑藻類干粉，是一種藻細胞（Spongiococcum屬，由其培養液分離而得）、糖蜜、玉米漿和不超過0.3%的乙氧基喹組成的干混合物。藻細胞由純Songiococcum屬的培養液在控制條件下發酵而得。
（b）使用和限制條件：著色劑藻類干粉可安全地用于雞飼料，但應符合下列規定條件：
（1）這種著色劑用于加深雞皮和雞蛋的黃色。
（2）這種著色劑在飼料中的混入量，應使飼料成品能達到：
（i）作為葉黃素和類胡蘿卜素的增補料，能達到本節（b）（1）規定的效果。
（ii）乙氧基喹在動物飼料中的用量，應符合本章§573.380中所規定的允許限量。
（c）標簽標注方式：本著色劑和任何混有本著色劑的預混合物，其標簽除本章§70.25中規定所需標明的資料之外，還應標明：
（1）其中所含葉黃素和乙氧基喹的濃度情況聲明。
（2）詳細的使用說明，以保證成品能完全符合本章（b）中所規定的限制條件。
（d）免除產品證書：本著色劑免除產品證書以保護公眾健康。所生產的每一批產品也免除按法規§721（c）中所規定的需要產品證書。
