§ 172.811 Glyceryl tristearate.
The food additive glyceryl tristearate may be safely used in food in accordance with the following prescribed conditions:
（a） The food additive （CAS Reg. No. 555–43–1） is prepared by reacting stearic acid with glycerol in the presence of a suitable catalyst.
（b） The food additive meets the following specifications:
Acid number: Not to exceed 1.0.
Iodine number: Not to exceed 1.0.
Saponification number: 186–192.
Hydroxyl number: Not to exceed 5.0.
Free glycerol content: Not to exceed 0.5 percent.
Unsaponifiable matter: Not to exceed 0.5 percent.
Melting point （Class II）: 69 °C–73 °C.
（c） The additive is used or intended for use as follows when standards of identity established under section 401 of the Act do not preclude such use:
| Uses | Limitations |
| 1. As a crystallization accelerator in cocoa products, in imitation chocolate, and in compound coatings | Not to exceed 1 percent of the combined weight of the formulation. |
| 2. As a formulation aid as defined in §170.3(o)(14) of this chapter, lubricant and release agent as defined in §170.3(o)(18) of this chapter, and surface-finishing agent as defined in §170.3(o)(30) of this chapter in food | Not to exceed 0.5 percent. |
| 3. As a formulation aid as defined in §170.3(o)(14) of this chapter in confections | Not to exceed 3.0 percent of the combined weight of the formulation. |
| 4. As a formulation aid as defined in §170.3(o)(14) of this chapter in fats and oils as defined in §170.3 (n)(12) of this chapter | Not to exceed 1.0 percent of the combined weight of the formulation. |
| 5. As a winterization and fractionation aid in fat and oil processing | Not to exceed 0.5 percent by weight of the processed fat or oil. |
（d） To assure safe use of the additive:
（1） In addition to the other information required by the act, the label or labeling of the additive shall bear the name of the additive.
（2） The label of the additive shall bear adequate directions to provide a final product that complies with the limitations prescribed in paragraph（c） of this section.
[53 FR 21632, June 9, 1988, as amended at 59 FR 24924, May 13, 1994]
更多关于美国 FDA 已批准的直接用于人类食品的添加剂种类法规，请点击美国FDA 21 CFR 第172部分已批准的直接用于人类食品的添加剂种类汇总
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