更多关于已证实属于一般公认为安全（GRAS）的可直接加入食品中的物质种类，请点击美国FDA 21 CFR 第184部分已证实属于一般公认为安全（GRAS）的可直接加入食品中的物质种类汇总
§ 184.1505 Mono- and diglycerides.
（a） Mono- and diglycerides consist of a mixture of glyceryl mono- and diesters, and minor amounts of triesters, that are prepared from fats or oils or fat-forming acids that are derived from edible sources. The most prevalent fatty acids include lauric, linoleic, myristic, oleic, palmitic, and stearic. Mono- and diglycerides are manufactured by the reaction of glycerin with fatty acids or the reaction of glycerin with triglycerides in the presence of an alkaline catalyst. The products are further purified to obtain a mixture of glycerides, free fatty acids, and free glycerin that contains at least 90 percent-by-weight glycerides.
（b） The ingredient meets the specifications of the Food Chemicals Codex, 3d Ed. （1981）, p. 201, which is incorporated by reference in accordance with 5 U.S.C. 552（a）. Copies are available from the National Academy Press, 2101 Constitution Ave. NW., Washington, DC 20418, or available for inspection 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.
（c） In accordance with §184.1（b）（1）, the ingredient is used in food with no limitation other than current good manufacturing practice. The affirmation of this ingredient as generally recognized as safe （GRAS） as a direct human food ingredient is based upon the following current good manufacturing practice conditions of use:
（1） The ingredient is used in food as a dough strengthener as defined in §170.3（o）（6） of this chapter; an emulsifier and emulsifier salt as defined in §170.3（o）（8） of this chapter; a flavoring agent and adjuvant as defined in §170.3（o）（12） of this chapter; a formulation aid as defined in §170.3（o）（14） of this chapter; a lubricant and release agent as defined in §170.3（o）（18） of this chapter; a solvent and vehicle as defined in §170.3（o）（27） of this chapter; a stabilizer and thickener as defined in §170.3（o）（28） of this chapter; a surface-active agent as defined in §170.3（o）（29） of this chapter; a surface-finishing agent as defined in §170.3（o）（30） of this chapter; and a texturizer as defined in §170.3（o）（32） of this chapter.
（2） The ingredient is used in food at levels not to exceed current good manufacturing practice.
（d） Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived.
[54 FR 7403, Feb. 21, 1989, as amended at 57 FR 10616, Mar.27, 1992]
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