HANDLING SYSTEMS TO REDUCE MANGO SAPBURN

R.J. Holmes, S.N. Ledger, W.N.B. Macleod
Assessments of 'Kensington Pride' mangoes on Australian wholesale markets have found sapburn to be the major fruit quality problem. Currently, the standard method for harvesting is to pick mangoes with long stems and transport them to the packing shed in plastic crates. The fruit are then de-sapped by removing the stem and placing the fruit, stem end down, on a conveyor or rack for 20 to 30 minutes. This method still results in between 50 and 60 % of the mangoes suffering from some degree of sapburn.

Recent work by officers of the Queensland Department of Primary Industries (QDPI) has demonstrated that these levels can be reduced by a number of methods: (a) using detergent dips and sprays prior to destemming; (b) destemming under a lime solution; (c) packing with short stems; (d) picking without stems onto a harvesting aid and dipping or spraying detergent onto the fruit immediately. All methods resulted in a reduction in both the severity and the percentage of fruit with sapburn. This was noticed during in farm trials and market assessments during the 1991/92 mango season. The harvesting aid proved most effective, reducing total sapburn to 15.9 %. The harvesting aid also offers considerable savings in labour costs by reducing the number of pickers by nearly half.

Holmes, R.J., Ledger, S.N. and Macleod, W.N.B. (1993). HANDLING SYSTEMS TO REDUCE MANGO SAPBURN. Acta Hortic. 341, 528-532
DOI: 10.17660/ActaHortic.1993.341.56
https://doi.org/10.17660/ActaHortic.1993.341.56

Acta Horticulturae