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
§ 184.1012 &b.alpha;-Amylase enzyme preparation from Bacillus stearothermophilus.
（a） α-Amylase enzyme preparation is obtained from the culture filtrate that results from a pure culture fermentation of a nonpathogenic and nontoxicogenic strain of Bacillus stearothermophilus. Its characterizing enzyme activity is α-amylase （1,4 α-D glucan glucanohydrolase （E.C. 3.2.1.1））.
（b） The ingredient meets the general and additional requirements for enzyme preparations in the “Food Chemicals Codex,” 3d ed. （1981）, pp. 107–110, which is incorporated by reference in accordance with 5 U.S.C. 552（a） and 1 CFR part 51. Copies are available from the National Academy Press, 2101 Constitution Ave. NW., Washington, DC 20418, or may be examined at the Office of Premarket Approval （HFS–200）, Center for Food Safety and Applied Nutrition, Food and Drug Administration, 1110 Vermont Ave. NW., suite 1200, Washington, DC, 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.
（c） In accordance with §184.1（b）（1）, the ingredient is used in food with no limitation other than current good manufacturing practices. The affirmation of this ingredient as 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 an enzyme, as defined in §170.3（o）（9） of this chapter, in the hydrolysis of edible starch to produce maltodextrins and nutritive carbohydrate sweeteners.
（2） The ingredient is used at levels not to exceed current good manufacturing practices.
[60 FR 55789, Nov. 3, 1995]
