Table 1.

Chemical compounds for taste appreciation categorization.

Taste	Chemical Compounds
Sweet	Sugar, fructose, saccharin, sucrose, glucose, few amino acids, l-alanine, alcohols.
Salt	Metal ions (inorganic salts) : NaCl, KCl, KNO3
Sour	Acids (detachment of H+ in solution): HCl, H2SO4, CH3COOH, etc.
Bitter	Alkaloids (nicotine, quinine, caffeine) and non-alkaloids (aspirin), MgCl2, urea, l-tryptophan, etc.
Umami	Amino acids (glutamate)