FeiTianXianGuo牌保鲜纸对红地球葡萄贮藏品质的影响

目的]科学有效地使用保鲜纸,保证红地球葡萄的贮存品质。方法]以市面上常用的Fei Tian Xian Guo牌保鲜纸为材料,采用不同的使用方式对红地球葡萄进行贮藏保鲜,分析了不同使用方式下红地球葡萄中可溶性固形物含量、可滴定酸含量、硬度、果梗新鲜度、腐烂率、漂白率和SO2残留的变化。结果]放置保鲜纸的处理组均能有效地减缓红地球葡萄中可溶性固形物含量、可滴定酸含量、果实硬度及果梗新鲜度的下降,各处理组差别不大,各个处理组均无腐烂现象,各处理组在贮存期间均出现了漂白和SO2残留,贮存至70 d,各处理组的漂白率分别为1.30%、7.53%和8.47%,SO2残留量分别为2.4、6.0和8.5 mg/kg。结论]每5 kg红地球葡萄,放置1张Fei Tian Xian Guo牌保鲜纸的处理组贮存效果最优,既能保证红地球葡萄的贮藏品质,降低贮藏的经济成本,又能有效避免漂白等一系列伤害。

Effects of FeiTianXianGuo Preservative Paper on the Storage Quality of Red Globe Grape

Objective] To scientifically and effectively use the preservative paper, and to ensure the storage quality of Red Globe grape. Method] With FeiTianXianGuo preservative paper in the market as the test material , Red Globe grape was stored and preserved by different using methods.Changes of soluble solid content, titratable acid content, fruit hardness, fruit stem freshness, rotting rate, bleachability and SO2 residue in Red Globe grape were analyzed under different use methods. Result] The treatment groups with preservative papers could ef-fectively delay the decline of soluble solid content, titratable acid content, fruit hardness and fruit stem freshness, showing slight differences between treatment groups.And there was no rotten phenomenon in all treatment groups .Bleachability and SO2 residue appeared in each treat-ment group during the storage.After stored for 70 d, the bleachability rates were 1.30%, 7.53% and 8.47%, and the SO2 residue were 2.4, 6.0 and 8.5 mg/kg, respectively.Conclusion] Treatment of placing one FeiTianXianGuo preservative paper for every 5 kg Red Globe grapes has the optimal storage effect, which ensures the storage quality of Red Globe grape, reduces the economic cost of storage, and effec-tively avoids a series of damage including bleaching .