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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
§ 73.500 Saffron.
（a） Identity. （1） The color additive saffron is the dried stigma of Crocus sativus L. The definition of saffron in this paragraph is for the purpose of identity as a color additive only, and shall not be construed as setting forth an official standard for saffron under section 401 of the act.
（2） Color additive mixtures made with saffron may contain as diluents only those substances listed in this subpart as safe and suitable in color additive mixtures for coloring foods.
（b） Uses and restrictions. Saffron may be safely used for the coloring of foods generally, in amounts consistent withgood manufacturing practice, except that it may not be used to color foods for which standards of identity have been promulgated under section 401 of the act, unless the use of added color is authorized by such standards.
（c） Labeling. The color additive and any mixtures intended solely or in part for coloring purposes prepared therefrom shall bear, in addition to the other information required by the act, labeling in accordance with the provisions of §70.25 of this chapter.
（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.
§73.500 藏红花
（a）特性：
（1）着色剂藏红花，系藏红花（Crocus sativus L.）的干燥柱头。本栏所指的藏红花，仅指用做着色剂的藏红色，不同于法规401节中所指具有法定标准的藏红花。
（2）用藏红花配制成的食用着色剂混合物，只能选用本分部中所列的安全和适用于食品着色的着色剂混合物稀释剂。
（b）使用和限制条件：藏红花在符合现行GMP用量条件下，可安全地用于一般食品的着色，但不得用于本法规§401中所颁布的已确定标准的食品的着色，除非所加入的色素是这类标准所允许的。
（c）标签标注方式：本着色剂和任何含有本着色剂的混合物，拟单独使用或起部分着色效果时，除法规所规定的其它所需说明以外，其标签还应符合本章§70.25中的规定。
（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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