---
kind: "section"
citation: "21 C.F.R. § 172.540"
title: "21"
number: "172.540"
heading: "DL-Alanine."
url: "https://uscodex.org/cfr/21/172.540"
---

# §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.


## Notes

### Amendments

[56 FR 6968, Feb. 21, 1991]

### Authority

Authority: 21 U.S.C. 321, 341, 342, 348, 371, 379e.

### Source

Source: 42 FR 14491, Mar. 15, 1977, unless otherwise noted.

### Amendments

[56 FR 6968, Feb. 21, 1991]