Study on the Technology of SO₂ Fumigation in August Grapes

Abstract:

Taking August Grape as material, studied on the effect of 1000, 500 and 100 μL/L SO₂ fumigation treatments on postharvest quality and SO₂ residue of fruit stored under 0 °C. The results indicated that after 90 days of storage, all treatment could decrease the decay rate and bleaching. The 500 μL/L SO₂ fumigation treatment showed an ability to significantly inhibit decreasing of vitamin C content. The SO₂ residue in grape pulp treated by 500μL/L and 100 μL/L of SO₂ were 8.56 mg/kg and 6.03 mg/kg respectively which under the FDA safety standard (10 mg/kg) after 90 days storage, while the SO₂ residue in 1000 μL/L SO₂ fumigation treatment samples was 14.36 mg/kg which beyond the FDA safety standard.

• Periodical: Advanced Materials Research (Volumes 971-973)
• Pages: 187-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.971-973.187
• Online since: June 2014
• Authors: Hong Yuan Ma*, Cai Hong Liu, Xi Hong Li, Lu Zhang, Peng Yu Zhao
• Keywords: August Grape, Postharvest Quality, Residue, SO₂

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