§172.215 食品添加剂香豆酮-茚树�?Coumarone-indene resin)

　　�� 172.215 Coumarone-indene resin.

　　The food additive coumarone-indene resin may be safely used on grapefruit, lemons, limes, oranges, tangelos, and tangerines in accordance with the following prescribed conditions:

　　（a� The food additive is manufactured by the polymerization of a crude, heavy coal-tar solvent naphtha meeting the following specifications:

　　�?� It is a mixture of indene, indan （hydrindene�? substituted benzenes, and related compounds.

　　�?� It contains no more than 0.25 percent tar bases.

　　�?� 95 percent distills in the range 167 ��C�C184 ��C.

　　（b� The food additive meets the following specifications:

　　�?� Softening point, ring and ball: 126 ��C minimum as determined by ASTM method E28�C67 （Reapproved 1982�? ��Standard Test Method for Softening Point by Ring-and-Ball Apparatus,�� which is incorporated by reference. Copies may be obtained from the American Society for Testing Materials, 100 Barr Harbor Dr., West Conshohocken, Philadelphia, PA 19428-2959, or may be examined at the National Archives and Records Administration （NARA�? For information on the availability of this material at NARA, call 202�C741�C6030, or go to:http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

　　�?� Refractive index � n 25 / D � 1.63�C1.64.

　　（c� It is used or intended for use as a protective coating for grapefruit, lemons, limes, oranges, tangelos, and tangerines whereby the maximum amount of the resin remaining on the fruit does not exceed 200 parts per million on a fresh-weight basis.

　　（d� To assure safe use of the additive:

　　�?� The label of the market package or any intermediate premix of the additive shall bear, in addition to the other information required by the act:

　　（i� The name of the additive, coumarone-indene resin.

　　（ii� A statement of the concentration of the additive therein.

　　�?� The label or accompanying labeling shall bear adequate directions that, if followed, will result in a finished food not in conflict with the requirements of this section.

　　[42 FR 14491, Mar. 15, 1977, as amended at 49 FR 10103, Mar. 19, 1984]

　　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 �?72部分已批准的直接用于人类食品的添加剂种类汇怺�/a>