# DL-Alanine — Food additive regulatory approval status — US FDA vs EU

For DL-Alanine, jurisdiction is US FDA (21 CFR 172–178); status is permitted; citation is 21 CFR 172.540; use conditions is 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; cas no. is 302-72-7, recorded from its source on 2026-08-15.

- **Additive:** DL-Alanine _(verified: appears in the quote below)_
- **Jurisdiction:** US FDA (21 CFR 172–178) _(our reading, not quoted from the source)_
- **Status:** permitted _(our reading, not quoted from the source)_
- **Citation:** 21 CFR 172.540 _(our reading, not quoted from the source)_
- **Use conditions:** 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. _(verified: appears in the quote below)_
- **CAS No.:** 302-72-7 _(verified: appears in the quote below)_

## What the source says

> § 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.

## Source

- https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172

Last verified: 2026-08-15. Review by: 2027-08-15.
Part of [Food additive regulatory approval status — US FDA vs EU](https://referencesource.org/food-additive-approval-status-us-vs-eu/).