gamma-lactone

dairy lactone

Found in 2 ingredients across the CompKitchen flavor graph.

Look up another compound — search by name, CAS number, PubChem CID, or FEMA #.

Properties

Odor description: apricot
Odor threshold — orthonasal, in clean water: 1600 ppb 1 published value · see all 1 with sources
CAS number: 695-06-7

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

? Partial match

FEMA number: 4138
GRAS publication: GRAS 22
FEMA primary name: 4-Hydroxy-2-butenoic acid gamma-lactone

Reported use levels (ppm by food category)

Typical vs maximum reported addition levels in finished food. Use as a regulatory ceiling reference — verify against the current GRAS publication for your product category.

Food category	Typical (ppm)	Maximum (ppm)
beverages (alcoholic)	3.5	5
meat products	3.8	505

Source: FEMA GRAS publications 1-33. 2 related FEMA records for this name — verify the exact substance for regulatory use.

Published thresholds

1 measured value from the literature. Grouped by what was actually measured — a threshold smelled in clean water, tasted in the mouth, or measured in a real food are three different quantities and are not pooled.

Orthonasal, in clean water

1600 ppb

The reference measurement — smelled in water. OAV is computed against this.

Threshold	Matrix	Source	Paper
1600 ppb	water_odor	Leffingwell	—

Only values we can attribute are listed. Where a compendium's licence does not permit public attribution its figures are omitted here, so every number on this page traces to a citable source.

Thresholds in published tables

Numbers printed in open-access papers, grouped by the medium the table states. Median and full range of the values; “agree” means two or more papers whose middle 80% of values sit within 100×. Not reviewed.

Medium	Median	Range	Values	Papers	Papers agree?
ethanol solution	1.858e+05 ppb	1.25e+04–3.59e+05	2	2	yes
food matrix	260 ppb	50–3.59e+05	6	5	no (2.4 decades)
oil	8000 ppb	8e+03–8e+03	1	1	one paper
unstated	1600 ppb	0.26–5e+06	27	23	no (3.9 decades)
water	260 ppb	1.6–1.6e+03	12	11	no (2.3 decades)

Found in

Measured impact first, then profile share

Every ingredient known to contain gamma-lactone. Ingredients with a measured concentration come first, ranked by odour activity; the rest follow by how large a share of that ingredient's profile this molecule is. The figure beside each is how many different compounds that ingredient has in total — not the concentration of gamma-lactone in it.

375 cmpds

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Try the pairing tools to see which ingredient combinations rely on gamma-lactone, or compare two ingredients side-by-side.