. 2017 Nov 30;55(2):619–629. doi: 10.1007/s13197-017-2971-3

Table 2.

Contents of amino acid (µg/100 mL) in lotus root fermented sugar syrup samples

Amino acid	Brown sugar broth (control)		Lotus root fermented sugar syrup
Amino acid	0 day	180 day	0 day	15 day	90 day	180 day
Aspartic acid	0.60 ± 0.13^a	nd	nd	nd	nd	nd
Threonine	nd	nd	0.12 ± 0.00^d	22.87 ± 0.14^c	26.50 ± 0.01^b	27.82 ± 0.04^a
Serine	nd	nd	0.17 ± 0.02^d	23.53 ± 0.14^c	27.41 ± 0.04^b	28.72 ± 0.04^a
Glutamic acid	nd	nd	0.41 ± 0.02^d	13.44 ± 0.17^c	16.86 ± 0.10^b	16.98 ± 0.14^a
Glycine	nd	nd	0.59 ± 0.05^d	4.09 ± 0.03^c	5.44 ± 0.01^b	5.61 ± 0.12^a
Alanine	nd	nd	1.15 ± 0.02^d	28.31 ± 0.12^c	37.06 ± 0.04^a	34.71 ± 0.19^b
Valine	0.41 ± 0.015^e	0.34 ± 0.017^e	2.64 ± 0.95^d	23.31 ± 0.20^c	26.96 ± 0.32^b	28.50 ± 0.63^a
Isoleucine	nd	nd	0.12 ± 0.01^d	11.97 ± 0.74^c	13.39 ± 1.02^b	15.80 ± 1.84^a
Leucine	nd	nd	0.41 ± 0.03^d	9.21 ± 0.92^c	10.39 ± 0.69^b	12.21 ± 1.28^a
Tyrosine	nd	nd	nd	27.39 ± 2.47^c	31.83 ± 0.82^b	33.82 ± 2.05^a
Phenylalanine	nd	nd	nd	6.77 ± 2.00^b	7.73 ± 0.41^ab	8.12 ± 1.03^a
β-Alanine	nd	nd	nd	4.20 ± 0.57^b	4.84 ± 1.08^b	8.64 ± 0.39^a
Ornithine	nd	nd	nd	2.14 ± 0.02^c	2.99 ± 0.00^a	2.27 ± 0.02^b
Lysine	nd	nd	0.13 ± 0.00^d	1.74 ± 0.02^c	6.24 ± 0.01^b	9.98 ± 0.01^a
1-Mehyl histidine	nd	nd	nd	1.72 ± 0.00^b	1.81 ± 0.04^a	1.71 ± 0.02^b
Histidine	nd	nd	nd	8.72 ± 0.02^b	9.51 ± 0.04^a	9.49 ± 0.06^a
Arginine	nd	nd	nd	66.58 ± 0.22^c	77.49 ± 0.23^b	98.09 ± 0.13^a
Proline	nd	nd	nd	6.96 ± 0.35^c	10.65 ± 0.21^a	8.97 ± 0.45^b
Total	1.01	0.34	5.74	262.95	317.1	351.44

All values were expressed as mean ± standard deviation of triplicate determinations

nd not detected

Superscripts sharing a common letter in the same row are not significantly different at p < 0.05 by Duncan’s multiple range test