Table 1.

Contents of BAs in Douchi samples.

Douchi Sample	Histamine (mg/Kg)	Tyramine (mg/Kg)	Tryptamine (mg/Kg)	β-Phenethylamine (mg/Kg)	Putrescine (mg/Kg)	Cadaverine (mg/Kg)	Total (mg/Kg)
JXJJ	75.16 ± 3.41 c	54.80 ± 4.32 f	14.71 ± 1.24 d	191.24 ± 2.93 j	97.08 ± 1.27 j	246.47 ± 4.16 f	679.46 ± 17.33 j
GXWZ	1.43 ± 0.11 a	64.33 ± 1.85 h	ND	86.58 ± 0.91 i	45.62 ± 0.48 h	397.70 ± 4.35 g	595.66 ± 7.70 i
GDYJ	213.13 ± 2.37 d	20.81 ± 1.31 d	9.08 ± 1.79 bc	69.44 ± 3.40 h	171.00 ± 3.13 k	25.08 ± 0.90 e	508.54 ± 12.9 h
SXHZ	ND	45.33 ± 3.72 e	11.38 ± 0.48 cd	38.57 ± 1.38 f	71.66 ± 0.23 i	2.69 ± 0.03 abc	169.63 ± 5.84 g
YNKM	11.54 ± 0.47 b	59.94 ± 6.56 g	0.86 ± 0.18 a	69.11 ± 0.65 h	12.68 ± 0.33 d	5.62 ± 0.18 cd	159.75 ± 8.37 fg
GZTR	ND	2.09 ± 0.23 ab	99.31 ± 6.41 e	24.02 ± 2.05 e	19.25 ± 1.31 f	4.83 ± 0.57 bcd	149.50 ± 10.57 f
HNLY	11.84 ± 1.61 b	11.30 ± 2.39 c	ND	48.47 ± 4.79 g	15.09 ± 2.86 e	7.39 ± 0.91 d	94.09 ± 12.56 e
HBYC	ND	16.64 ± 2.94 d	5.89 ± 0.21 b	14.59 ± 0.54 d	8.59 ± 0.38 c	1.70 ± 0.16 ab	47.41 ± 4.23 d
CQ	ND	5.44 ± 0.38 b	ND	4.90 ± 0.46 ab	18.85 ± 0.05 f	0.54 ± 0.00 a	29.73 ± 0.89 c
GSLN	ND	ND	ND	ND	23.33 ± 0.30 g	1.93 ± 0.17 ab	25.26 ± 0.47 c
SCCD	ND	0.26 ± 0.09 a	ND	ND	21.46 ± 0.68 g	2.87 ± 0.14 abc	24.53 ± 0.91 c
TJ	ND	6.24 ± 0.84 b	ND	7.19 ± 2.40 bc	12.72 ± 1.24 d	ND	26.15 ± 4.48 c
ZJJS	ND	4.08 ± 0.13 ab	ND	8.79 ± 0.25 c	8.16 ± 0.41 c	ND	21.03 ± 0.79 bc
JSXZ	ND	1.37 ± 0.34 ab	ND	1.47 ± 0.24 a	5.49 ± 0.06 b	0.49 ± 0.20 a	8.82 ± 0.84 ab
HNLB	ND	2.44 ± 0.44 ab	ND	ND	2.65 ± 0.14 a	ND	5.09 ± 0.58 a

Data are presented as mean ± SDs of three replicates; ND means “not detected”. Different letters (a, b, c, etc.) indicate significantly different means at P < 0.05.