Table 7. Changes in the free sugar content of grapes during the storage of phytoncide treatment derived from pine bark

(unit: mg/L)

Storage period (day) Control Sulfur dioxide Pad Phytoncide pad 1 Phytoncide pad 2
Glucose 0 54,115.84 56,192.74 57,154.29 51,473.56
3 51,038.11 55,051.14 56,122.75 50,075.63
6 44,508.00 48,516.97 49,081.48 52,621.81
9 49,432.08 46,998.11 45,629.86 47,137.62
12 44,698.72 45,048.47 49,413.54 39,301.59
Fructose 0 78,986.79 81,997.89 80,466.99 77,506.58
3 78,741.35 81,815.79 79,378.13 73,789.21
6 69,369.88 71,716.99 72,327.98 76,789.85
9 73,129.83 70,796.34 68,503.59 69,765.68
12 68,440.72 67,157.12 71,256.77 56,805.88