(unit: mg/L)

Storage period (day)		Control	Sulfur dioxide Pad	Phytoncide pad 1	Phytoncide pad 2
Citric acid	0	89.66	56.45	71.56	62.54
	3	129.50	36.64	44.41	41.64
	6	217.73	74.20	45.64	56.04
	9	55.72	49.58	71.47	61.84
	12	47.73	47.61	59.42	46.45
Tartaric acid	0	4,266.77	3,663.93	3,563.93	3,663.93
	3	3,926.84	3,539.62	3,426.11	3,571.77
	6	4,257.24	3,295.10	3,473.59	3,454.82
	9	3,146.68	3,242.37	3,610.38	3,414.05
	12	3,160.70	3,222.07	3,593.35	3,189.65
Shikimic acid	0	7.47	8.25	7.24	8.98
	3	10.48	11.11	9.51	8.92
	6	9.69	14.29	10.93	8.72
	9	9.28	11.21	10.61	9.86
	12	9.51	11.30	13.73	6.46
Fumaric acid	0	14.56	6.11	18.99	23.65
	3	13.63	9.61	18.74	22.73
	6	15.28	19.40	22.37	20.90
	9	25.82	14.91	17.06	25.11
	12	27.38	14.83	14.74	22.81
Acetic acid	0	94.10	31.60	17.08	47.16
	3	785.00	78.94	94.10	99.59
	6	2,457.12	96.81	127.07	300.84
	9	558.78	207.19	1,095.07	817.13
	12	64.75	346.60	1,006.81	307.26