1. ; Faculty of Food Science and Biotechnology; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
2. ; Department of Food Science and Agricultural Chemistry; Macdonald Campus of McGill University; St. Anne de Bellevue H9X 3V9 Québec Canada
3. ; Department of Mathematics; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia