The FEMA GRAS assessment of lactones used as a flavour ingredients. The Flavor and Extract Manufacturers' Association. Generally recognized as safe.

@article{Adams1998TheFG,
  title={The FEMA GRAS assessment of lactones used as a flavour ingredients. The Flavor and Extract Manufacturers' Association. Generally recognized as safe.},
  author={Timothy B Adams and Des Greer and John Doull and Ian C Munro and Paul M. Newberne and Philip S. Portoghese and Robert L. Smith and Bernard M. Wagner and Carrol S. Weil and Louis A. Woods and Richard A. Ford},
  journal={Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association},
  year={1998},
  volume={36 4},
  pages={249-78}
}