SR1 as alternative to the sodium metabisulfite in ready to use potatoes

The use of sodium metabisulfite to maintain the quality of peeled and fresh cut potatoes has the advantage of the economy but it use is increasingly questioned in certain markets. Current technology offers potential alternatives as are other types of preservatives and modified atmospheres. An essay evaluates Agricoat SR1 as dip solution, and Amcor plastic packaging with selective permeability. This study suggests that King Edward not only have a longer shelf life than Maris piper when untreated, but they also respond better to the treatments. The trial indicates that a shelf life of P+7 for King Edward, and P+4 for Maris Piper can be achieved when using SR1 at 2.5 % with Amcor microperforated film. For King Edward (picture), after P+4 all samples except the SR1 2.5 % (120 and 160) had become unacceptable, the water dipped samples had become unacceptable at P+3. Both SR1 2.5 % samples had reached end of life at P+7. The picture belongs to the discolouration assessments  in King Edward.