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. 2020 Nov 6;9(11):1620. doi: 10.3390/foods9111620

Table 4.

The amino acids (g 100 g−1) and biogenic amines (mg kg−1) concentration in extruded and nontreated cereal by-products non-fermented and fermented with L. uvarum strain.

WnonF Wex130/
screwspeed25
Wex130/
screwspeed25Lu
The
amino
acids,
g 100g−1
Asp 0.43 ± 0.03 a 0.44 ± 0.03 a 0.48 ± 0.04 a
Glu 1.75 ± 0.09 b 1.43 ± 0.09 a 1.47 ± 0.08 a
Asn nd nd nd
Ser 0.29 ± 0.03 a 0.26 ± 0.02 a 0.26 ± 0.02 a
His 0.12 ± 0.01 b 0.10 ± 0.01 a 0.11 ± 0.01 a
Gly 0.27 ± 0.02 a 0.24 ± 0.02 a 0.26 ± 0.02 a
Thr 0.25 ± 0.02 a 0.25 ± 0.02 a 0.26 ± 0.02 a
Arg 0.31 ± 0.03 b 0.27 ± 0.02 a 0.27 ± 0.02 a
Ala 0.24 ± 0.02 a 0.21 ± 0.02 a 0.23 ± 0.02 a
Tyr 0.18 ± 0.01 a 0.19 ± 0.01 a 0.17 ± 0.01 a
Cys 0.34 ± 0.03 a 0.38 ± 0.03 b 0.40 ± 0.03 b
Val 0.34 ± 0.03 a 0.32 ± 0.03 a 0.34 ± 0.03 a
Met 0.12 ± 0.01 a 0.13 ± 0.01 a 0.13 ± 0.01 a
Trp 0.36 ± 0.03 c 0.32 ± 0.03 b 0.29 ± 0.02 a
Phe 0.28 ± 0.02 b 0.24 ± 0.02 a 0.22 ± 0.02 a
Ile 0.40 ± 0.04 b 0.32 ± 0.03 a 0.32 ± 0.03 a
Leu 0.14 ± 0.01 b 0.10 ± 0.01 a 0.11 ± 0.01 a
Lys 0.26 ± 0.02 a 0.29 ± 0.02 a 0.34 ± 0.03 b
Pro 0.50 ± 0.04 c 0.27 ± 0.02 b 0.24 ± 0.02 a
BAs con-
centration,
mg kg−1
PHE nd nd nd
PUT 102.3 ± 2.6 a 154.1 ± 5.4 b 160.1 ± 4.0 c
CAD 41.3 ± 1.6 nd nd
HIS 63.6 ± 2.2 nd nd
TYR nd nd nd
SPRMD nd nd nd
SPRM 111.9 ± 3.9 c 32.50 ± 0.8 a 33.6 ± 1.2 b

W, wheat bran; nonF, non-fermented; Lu, fermented with Lactobacillus uvarum; ex130/screwspeed25, extruded at 130 °C, screw speed 25 rpm; nd, not determined; Asp, aspartic acid, Ala, alanine, Gly, glycine, Val, valine, Leu, leucine, Ile, isoleucine, Thr, threonine, Ser, serine, Pro, proline Asn, asparagine, Met, methionine, Glu, glutamine, Phe, phenylalanine, Lys, lysine, His, histidine, Arg, arginine, Tyr, tyrosine, Trp, tryptophan, Cys, cysteine; Bas, biogenic amines; PHE, phenylethylamine; PUT, putrescine; CAD, cadaverine; HIS, histamine; TYR, tyramine; SPRMD, spermidine; SPRM, spermine. Data are represented as means (n = 3) ± SD. a–c, mean values within a row denoted with different letters are significantly different (p ≤ 0.05). nd, not determined.