Hsiao Lab is developing LexMapr, a program for converting shorter biosample text descriptions to an ontology representation. It uses FoodOn, Envo, and other ontologies, and is initially focused on food sample descriptions.

The Global Names Architecture (GNA) is a system of web-services which helps people to register, find, index, check and organize biological scientific names and interconnect on-line information about species. 
https://globalnames.org/

FlavorDB: FlavorDB presents over 25 thousand flavour molecules representing an array of tastes and odours. “Among these 2254 molecules are associated with 936 natural ingredients belonging to 34 categories.”
https://cosylab.iiitd.edu.in/flavordb/ and https://doi.org/10.1093/nar/gkx957

FoodKG: A Semantics-Driven Knowledge Graph for Food Recommendation: A diet logging and recipe substitution system developed by the HEALS: Health Empowerment by Analytics, Learning, and Semantics research team at the Rensselaer Polytechnic Institute.  https://foodkg.github.io/subs.html

Yourterm.org Food: A project to list vocabularies used in the European Union related to food.
https://yourterm.eu/yourterm-food/

Cooklang: Recipe Markup Language: A JSON data structure and related apps for representing recipes.
https://cooklang.org/