# Glycerol ester of rosin — Food additive regulatory approval status — US FDA vs EU For Glycerol ester of rosin, jurisdiction is US FDA (21 CFR 172–178); status is permitted; citation is 21 CFR 172.735; use conditions is in food in accordance with the following prescribed conditions: ( a ) It has an acid number of 3 to 9, a drop-softening point of 88 to 96 °C; and a color of N or paler as determined in accordance with Official Naval Stores Standards of the United States, recorded from its source on 2026-08-15. - **Additive:** Glycerol ester of rosin _(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 172.735 _(our reading, not quoted from the source)_ - **Use conditions:** in food in accordance with the following prescribed conditions: ( a ) It has an acid number of 3 to 9, a drop-softening point of 88 to 96 °C; and a color of N or paler as determined in accordance with Official Naval Stores Standards of the United States. _(verified: appears in the quote below)_ ## What the source says > § 172.735 Glycerol ester of rosin. Glycerol ester of wood rosin, gum rosin, or tall oil rosin may be safely used in food in accordance with the following prescribed conditions: ( a ) It has an acid number of 3 to 9, a drop-softening point of 88 to 96 °C; and a color of N or paler as determined in accordance with Official Naval Stores Standards of the United States. It is purified by countercurrent steam distillation or steam stripping. ## 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/).