1. Postharvest Technology Research Laboratory, South African Research Chair in Postharvest Technology, Department of Food Science, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
2. Postharvest Technology Research Laboratory, South African Research Chair in Postharvest Technology, Department of Horticultural Science, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
3. Department of Botany and Plant Biotechnology, University of Johannesburg, Johannesburg, South Africa