Table 5. Changes in free amino acid concentrations of white cultivar Hypsizygus marmoreus during storage

(1) Free amino acid (mg/mL)		Storage period (day)
		EG2020				H6				HKT
		0	14	28	42	0	14	28	42	0	14	28	42
Total free amino acid		18.15	15.813	17.500	18.491	18.35	15.032	15.920	17.065	23.37	16.516	20.621	19.491
Essential amino acid	Lysine	1.466	1.587	1.558	1.861	0.870	1.426	1.812	1.612	1.273	1.477	1.731	1.756
	Methionine	0.179	0.221	0.231	0.259	0.174	0.223	0.246	0.254	0.133	0.237	0.229	0.249
	Leucine	1.056	1.155	1.207	1.314	0.972	1.145	1.357	1.298	1.257	1.227	1.243	1.316
	Phenylalanine	0.677	0.686	0.717	0.804	0.556	0.677	0.768	0.762	0.642	0.722	0.744	0.765
	Valine	0.768	0.729	0.845	0.845	0.894	0.722	0.989	0.820	1.048	0.775	0.901	0.895
	Histidine	0.339	0.377	0.371	0.468	0.258	0.332	0.422	0.389	0.307	0.337	0.436	0.413
	Threonine	0.640	0.579	0.638	0.734	0.578	0.540	0.766	0.664	0.719	0.589	0.712	0.732
	Isoleucine	0.549	0.566	0.651	0.636	0.576	0.570	0.746	0.627	0.709	0.615	0.672	0.668
Non-essential amino acid	Glycine	0.517	0.456	0.533	0.583	0.527	0.446	0.611	0.550	0.611	0.479	0.593	0.562
	Cystine	0.237	ND1)	ND	0.165	0.449	0.070	ND	0.158	0.497	0.091	ND	0.206
	Arginine	1.313	1.491	1.467	1.761	0.856	1.448	2.110	1.628	0.887	1.650	1.527	2.248
(2) Free amino acid (mg/mL)		Storage period (day)
		EG2020				H6				HKT
		0	14	28	42	0	14	28	42	0	14	28	42
Tyrosine		0.618	0.652	0.663	0.799	0.493	0.610	0.757	0.725	0.585	0.661	0.730	0.768
Proline		0.519	0.417	0.413	0.436	0.513	0.354	0.410	0.394	0.733	0.318	0.554	0.336
Glutamic acid		2.133	1.756	1.709	1.773	4.799	1.765	2.110	1.663	4.929	1.833	1.803	1.914
Aspartic acid		1.024	0.853	0.968	0.893	1.140	0.908	1.601	0.926	1.722	1.222	0.852	1.626
Serine		0.846	0.769	0.872	0.998	0.538	0.753	1.014	0.940	0.721	0.805	0.931	1.030
Alanine		1.628	1.574	1.524	1.850	1.740	1.438	1.878	1.718	2.031	1.614	1.696	2.007
Phosphoserine		0.102	0.064	0.072	0.068	0.155	0.060	0.099	0.068	0.173	0.079	0.053	0.128
Taurine		0.060	0.083	0.049	0.066	0.068	0.061	0.106	0.064	0.105	0.110	0.041	ND
Phosphoethanol amine		0.097	0.062	0.072	ND	0.095	0.074	0.109	ND	0.138	0.089	0.068	ND
Urea		1.738	ND	ND	ND	1.070	ND	0.955	ND	1.836	ND	0.249	ND
Sarcosine		ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
α-Amino adipic acid		0.051	0.106	0.084	0.154	0.085	0.084	0.085	0.129	0.065	0.081	0.095	0.124
Citrulline		ND	ND	ND	ND	ND	ND	ND	ND	0.592	ND	ND	ND
α-Amino-n-butyric acid		ND	0.025	0.023	ND	ND	0.034	ND	ND	ND	0.029	0.020	ND
Cystathionine		0.076	0.073	0.094	0.096	0.055	0.081	0.126	0.101	0.112	0.092	0.085	0.137
(3) Free amino acid (mg/mL)		Storage period (day)
		EG2020				H6				HKT
		0	14	28	42	0	14	28	42	0	14	28	42
β-Alanine		0.045	0.039	0.037	0.060	0.056	0.044	0.043	0.087	0.061	0.049	0.040	0.069
β-Amino isobutyric acid		0.070	0.065	0.051	0.124	0.070	0.044	0.038	0.071	0.084	0.071	0.027	0.080
γ-Amino-n-butyric acid		0.028	0.026	0.016	0.033	0.033	0.014	0.021	0.031	0.039	0.022	0.022	0.028
Ethanol amine		0.072	0.090	0.105	0.132	0.122	0.103	0.111	0.129	0.059	0.094	0.128	0.127
Ammonia		0.040	0.025	0.042	0.053	0.111	0.026	0.063	0.036	0.135	0.036	0.047	0.052
Hydroxylysine		ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Ornithine		1.301	1.308	0.950	1.564	0.607	1.001	1.332	1.216	1.306	1.138	1.317	1.747
1-Methylhistidine		ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
3-Methylhistidine		ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Anserine		ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Carnosine		ND	0.004	ND	0.018	ND	0.006	ND	0.040	ND	0.010	ND	0.037
Hydroxyproline		ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND

Not detected.