How to pronounce“tastant”in English

In order to taste a bite of pizza, those food chemicals, or tastants, must dissolve in saliva so they can diffuse through those taste pores, and bind to receptors on those gustatory cells,

Taste begins with taste receptor epithelial cells, rather than nervous cells, where tastants bind to receptors that trigger action potentials to four different cranial nerves that tell you: PIZZA.