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§184.1769a 食品添加剂硅酸钠(Sodium metasilicate)

2011-07-28 中国食品网 中食网 821 0

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

  § 184.1769a Sodium metasilicate.

  (a) Sodium metasilicate (CAS Reg. No. 6834–92–0) is a strongly alkaline white powder. It does not occur naturally but rather is synthesized by melting sand with sodium carbonate at 1400 °C. The commercially available forms of sodium metasilicate are the anhydrous form (Na2SiO3), the pentahydrate (Na2SiO3·5H2O), and the nonahydrate (Na2SiO3·9H2O).

  (b) The ingredient must be of a purity suitable for its intended use.

  (c) In accordance with§184.1(b)(1), the ingredient is used in food with no limitation other thancurrent 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 as a processing aid as defined in§170.3(o)(24) of this chapter.

  (2) The ingredient is used to treat the following foods at levels not to exceed current good manufacturing practice: for use in washing and lye peeling of fruits, vegetables, and nuts when used in accordance with §173.315 of this chapter; for use as a denuding agent in tripe; for use as a hog scald agent in removing hair; and for use as a corrosion preventative in canned and bottled water when used in accordance with §165.110 of this chapter.

  (d) Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived.

  [50 FR 38781, Sept. 25, 1985; 50 FR 42011, Oct. 17, 1985, as amended at 72 FR 10357, Mar. 8, 2007; 73 FR 8608, Feb. 14, 2008]

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