1. School of Wine and Food Sciences, Charles Sturt University, Wagga Wagga, NSW 2678, Australia.
2. EH Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2678, Australia.
3. School of Chemical Engineering, the University of New South Wales, Sydney, NSW 2052, Australia.
4. Corresponding author. Phone: 61 2 9385 4304. Fax: 612 9385 5966. E-mail: jian.zhao@unsw.edu.au