Table 1. Physicochemical properties of heat-treated ginger slices under various temperature and time conditions

Samples	pH	Soluble solid contents (°Brix)	L*	a*	b*
Temperature¹⁾ (°C)	Control	6.26±0.09^cd2)	0.93±0.06^g	82.97±3.02^de	-4.61±1.05^ef	48.97±3.96^e
	60	6.33±0.03^d	0.77±0.06^f	85.36±1.60^f	-7.18±0.83^bc	47.80±3.76^de
	70	6.26±0.02^cd	0.63±0.06^e	83.67±2.94^ef	-7.63±0.45^ab	46.30±4.19^cd
	80	6.21±0.01^bc	0.43±0.06^d	77.50±5.26^c	-7.99±0.78^a	44.76±4.67^bc
	90	6.15±0.07^b	0.27±0.06^c	73.54±4.03^b	-6.69±1.02^c	44.70±6.25^bc
	100	6.07±0.03^a	0.17±0.06^ab	69.83±2.67^a	-4.81±1.36^de	43.90±4.55^bc
Time (h)	1	6.21±0.01^bc	0.43±0.06^d	77.50±5.26^c	-7.99±0.78^a	44.76±4.67^bc
	2	6.20±0.02^bc	0.23±0.06^bc	81.21±3.91^d	-6.70±1.15^c	44.70±3.70^bc
	3	6.32±0.01^d	0.20±0.00^bc	78.19±3.83^c	-6.62±1.13^c	42.30±4.47^ab
	4	6.27±0.01^cd	0.10±0.00^a	77.55±5.45^c	-5.30±1.44^d	42.95±5.58^ab
	5	6.32±0.03^d	0.10±0.00^a	76.28±5.67^c	-4.11±1.47^f	40.85±6.93^a

Temperature treatment, 1 h; time treatment, 80°C.
Mean±SD (n=3) with different letters are significantly different (p<0.05).