Pg. 15-16 SO₂ Residues in Litchi Fruit after Post-Harvest SO₂ Treatments (1990)

During the 1990 season, S0₂ residues in litchi fruit, cv Mauritius and cv Madras, were determined immediately after commercial S0₂ treatment, and after four weeks of cold storage. In both cultivars, S02 concentration in the pulp decreased during the four-week storage period and a big variation in the S0₂ residue concentrations occurred. In 79 per cent of the Madras samples analysed, the S0₂ residues in the pulp exceeded the tolerated 10 ppm level after storage, while only 22 per cent of the Mauritius samples fell into this category.