Table 1.
Effects of different freezing and thawing method on total color difference of mushroom

Freezing system	Thawing system	Lightness	Redness	Yellowness	Total color difference
Control		78.66±4.15ABCD3)	-0.91±0.53C	13.6±2.06D
CF2)	NT1)	77.3±2.22ABCDb4)	-0.78±0.37Bc	16.11±1.39Aa	3.53±1.47A
	FT	75.26±2.71BCDb	-0.47±0.54ABCb	13.67±1.48CDb	3.93±2.37AB
	ST	77.3±2.1ABCDb	-0.51±0.83ABC	14.84±1.77ABCa	2.74±1.94AB
	MT	78.01±1.61ABCDa	-1.03±0.54Cc	14.02±1.35BCDb	1.96±1.04Bb
ABF	NT	80.55±2.25ABa	-0.67±0.45Bc	15.11±1.75ABCa	3.33±1.59AB
	FT	80.62±2.35ABCa	-0.54±0.44ABCb	14.03±1.67BCDb	3.1±1.53AB
	ST	80.98±2.03Aa	-0.85±0.29C	15.75±1.34ABa	3.67±1.45A
	MT	76.3±1.25CDb	-0.42±0.34ABCb	14.62±1.08ABCDb	2.79±1.34ABab
LNF	NT	77.71±3.85ABCDb	-0.95±0.31C	13.4±0.95CDb	3.63±1.42A
	FT	77.4±2.60ABCDb	0.36±0.65Aa	15.94±1.96ABa	3.78±2.18A
	ST	75.03±1.76Dc	-0.83±0.54C	13.43±1.12CDb	3.88±1.58AB
	MT	79.55±1.98ABCDa	0.31±0.69ABa	16.07±1.52ABa	3.61±1.23ABa

Thawing was finished at 4°C of core temperature of sample (NT: Natural air convection thawing, FT: Flowing thawing, ST: sonification thawing, MT: Microwave thawing).
Freezing was done at -12°C of core temperature of sample (CF: Conventional freezing, ABF: Air blast freezing, LNF: Liquid nitrogen freezing)
A-DMeans with different superscript letters in a row are significantly different (p<0.05) by Duncan’s multiple range test.
a-cMeans with different superscript letters within different thawing method at same freezing system are significantly different (p<0.05) by Duncan’s multiple range test.