1. CSIRO Plant Industry, P.O. Box 1600, Black Mountain, ACT 2601, Australia.
2. Corresponding author, Phone: 612-62-465245. Fax: 612-62-465000. E-mail: cristina.gianibelli@csiro.au
3. NSW Agriculture, Tamworth NSW 2340, Australia.
4. Value Added Wheat Cooperative Research Centre Ltd, P.O. Box 7, North Ryde, NSW 1670, Australia.
5. Present address: Food Science Australia, PO Box 52, North Ryde, NSW 1670, Australia.