Table 5. Changes in the sugar content of grapes during the storage of phytoncide treatment derived from pine bark

(unit: °Brix)

Storage period (day) Control Sulfur dioxide Pad Phytoncide pad 1 Phytoncide pad 2
0 14.65±0.19a1) 14.70±0.20a 14.90±0.10a 14.80±0.15a
3 14.00±0.12b 14.63±0.08a 14.85±0.05a 14.60±0.12ab
6 13.33±0.04c 14.10±0.21b 14.33±0.27b 14.50±0.07b
9 13.25±0.05c 13.48±0.11c 14.20±0.05b 13.76±0.08c
12 13.53±0.04d 13.13±0.13d 14.05±0.15c 13.50±0.07d
1)a-cMeans within column with different superscripts are significantly different (p<0.05).