{"data":{"id":"us/21-cfr-172.210","jurisdiction":"us","citation":"21 CFR 172.210","heading":"Coatings on fresh citrus fruit.","body":"Coatings may be applied to fresh citrus fruit for protection of the fruit in accordance with the following conditions:\n(a) The coating is applied in the minimum amount required to accomplish the intended effect.\n(b) The coating may be formulated from the following components, each used in the minimum quantity required to accomplish the intended effect:\n(1) Substances generally recognized as safe for the purpose or previously sanctioned for the purpose.\n(2) One or more of the following:\nComponent Limitations\nFatty acids Complying with § 172.860.\nOleic acid derived from tall oil fatty acids Complying with § 172.862.\nPartially hydrogenated rosin Catalytically hydrogenated to a maximum refractive index of 1.5012 at 100 °C. Color of WG or paler.\nPentaerythritol ester of maleic anhydride-modified wood rosin Acid number of 134-145; drop-softening point of 127 °C-173 °C; saponification number of less than 280; and a color of M or paler.\nDo Acid number of 176-186; drop-softening point of 110 °C-118 °C; saponification number of less than 280; and a color of M or paler.\nPolyethylene glycol Complying with § 172.820. As a defoamer and dispersing adjuvant.\nPolyhydric alcohol diesters of oxidatively refined (Gersthofen process) montan wax acids Complying with § 178.3770 of this chapter and having a dropping point of 77 to 83 °C (170.6 to 181.4 °F), as determined by ASTM Method D566-76 (Reapproved 1982), “Standard Test Method for Dropping Point of Lubricating Grease,” which is incorporated by reference (Copies are available from the American Society for Testing and Materials, 100 Barr Harbor Dr., West Conshohocken, Philadelphia, PA 19428-2959, or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.) using as a solvent xylene-ethyl alcohol in a 2:1 ratio instead of toluene-ethyl alcohol in a 2:1 ratio.\nSodium lauryl sulfate Complying with § 172.822. As a film former.\nWood rosin Color of K or paler.\n(3) In lieu of the components listed in paragraph (b)(2) and (4) of this section, the following copolymer and one or more of the listed adjuvants.\nComponent Limitations\nVinyl chloride-vinylidene chloride copolymer As an aqueous dispersion containing a minimum of 75 percent water when applied.\nPolyethylene glycol Complying with § 172.820. As a defoamer and dispersing adjuvant.\nPolyvinylpyrrolidone As an adjuvant.\nPotassium persulfate Do.\nPropylene glycol alginate Do.\nSodium decylbenzenesulfonate Do.\n(4) In lieu of the components listed in paragraph (b)(2) and (3) of this section, the following rosin derivative and either or both of the listed adjuvants:\nComponent Limitations\nCalcium salt of partially dimerized rosin Having a maximum drop-softening point of 197 °C and a color of H or paler. It is prepared by reaction with not more than 7 parts hydrated lime per 100 parts of partially dimerized rosin. The partially dimerized rosin is rosin that has been dimerized by sulfuric acid catalyst to a drop-softening point of 95 °C to 105 °C and a color of WG or paler.\nPetroleum naphtha As adjuvant. Complying with § 172.250.\nSperm oil As adjuvant.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER B—FOOD FOR HUMAN CONSUMPTION","PART 172—FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION","Subpart C—Coatings, Films and Related Substances"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"0a9d1cb3c7073efbc11fca028c79a54d1a7fde3608bb0bc8c70918d972c99c8c","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-172.190","next":"us/21-cfr-172.215"},"notice":"GroundRules: Original legal text. Not legal advice."}