Table 1 Changes on total soluble solid, pH and total acidity of Prunus davidiana sugar extracts

Sample¹⁾		Storage period (mon)
		1	3	5	7	9
		Total soluble solid (°;Bx)	PS-25	42.33±0.21^cB	47.13±0.15^bA	51.23±0.15^aA	51.20±0.20^aA	51.07±0.06^aA
PS-25P	41.97±1.12^dB		43.20±0.26^cC	48.10±0.10^bC	49.10±0.10^aC	50.00±0.00^aC
PS-4P	44.37±0.51^bA		43.93±0.06^bB	50.43±0.21^aB	50.63±0.38^aB	50.80±0.10^aB
pH	PS-25	3.94±0.02^aB	3.94±0.02^aB	3.87±0.02^bB	3.87±0.03^bB	3.74±0.03^cB
	PS-25P	3.81±0.04^bC	3.83±0.04^abC	3.88±0.01^aB	3.85±0.01^abB	3.75±0.01^cB
	PS-4P	5.26±0.09^aA	4.83±0.03^bA	4.65±0.00^cA	4.63±0.00^cA	4.65±0.00^cA
Total acidity (%)	PS-25	0.37±0.01^dB	0.50±0.01^cB	0.64±0.02^abA	0.66±0.00^aA	0.63±0.00^bA
	PS-25P	0.56±0.01^bA	0.64±0.05^aA	0.57±0.00^bB	0.55±0.01^bB	0.57±0.00^bB
	PS-4P	0.03±0.01^dC	0.24±0.01^aC	0.13±0.01^cC	0.18±0.00^bC	0.14±0.00^cC

PS-25 : Storage at 25°C without pressure plate, PS-25P : Storage at 25°C with pressure plate, PS-4P : Storage at 4°C with pressure plate.
^A-CValues with different letter within a same column differ significantly by Duncan's multiple range test (p<0.05).
^a-dValues with different letter within a row differ significantly by Duncan's multiple range test (p<0.05).
Values are means±SD (n=3).