1Nel, A.P., 2du Toit, W.J. and 3van Jaarsveld, F.P.
(1) Cape Peninsula University of Technology, Hexberg Road, Wellington Campus, Wellington 7655, Western Cape, South
Africa.
(2) Department of Viticulture and Oenology, Stellenbosch University, Private Bag X1, Matieland 7062, South Africa
(3) Post-harvest and Agro-processing Technologies Division, ARC Infruitec-Nietvoorbij (The Fruit, Vine and Wine Institute of
the Agricultural Research Council), Private Bag X5026, Stellenbosch 7599, South Africa
