§ 172.540 DL-Alanine.
DL-Alanine （a racemic mixture of D- and L-alanine; CAS Reg. No. 302–72–7） may be safely used as a flavor enhancer for sweeteners in pickling mixtures at a level not to exceed 1 percent of the pickling spice that is added to the pickling brine.
[56 FR 6968, Feb. 21, 1991]
更多關于美國 FDA 已批準的直接用于人類食品的添加劑種類法規，請點擊美國FDA 21 CFR 第172部分已批準的直接用于人類食品的添加劑種類匯總
