“…Among them, the taste threshold of acetate was the lowest (TC = 2,000 μM), followed by citrate (TC = 2,600 μM) and malate (TC = 3,700 μM). The contents of oxalic acid (TC = 5,600 μM), tartaric acid, formic acid (TC = 4,345 μM), a C4:0, butyric acid; C6:0, caproic acid; C8:0, caprylic acid; C10:0, capric acid; C11:0, undecanoic acid; C12:0, lauric acid; C13:0, tridecanoic acid; C14:0, myristic acid; C15:0, pentadecanoic acid; C16:0, palmitic acid; C17:0, margaric acid; C18:0, stearic acid; C21:0, heneicosanoic acid; C22:0, behenic acid; C24:0, lignoceric acid; C14:1, myristoleic acid; C16:1, palmitoleic acid; C17:1, heptadecenoic acid; C18:1 n-9t, vaccenic acid; C18:1 n-9c, oleic acid; C18:2, linoleic acid; C18:3, α-linolenic acid; C20:1, eicosenoic acid; C20:2, eicosadienoic acid; C20:3, eicosatrienoic acid; C20:4, arachidonic acid; C20:5, timnodonic acid TA B L E 1 (Continued) pyroglutamic acid (TC = 9,798 μM), and fumaric acid were also determined in chicken/chicken soup (Horio & Kawamura, 1990;Norris et al, 1984;Stark et al, 2006;Zhang et al, 2020). Presently, the sour-tasting peptides reported in chicken or chicken soup include VE (TC = 8,121 μM), WVNEEDHL, NSLEGEFKG, and KDLFDPVIQD (Kong et al, 2017;Zhang, Ma, et al, 2019).…”