1. State Key Lab. of Food Science and Technology; Jiangnan Univ.; 1800 Lihu Avenue Wuxi 214122 Jiangsu China
2. Dept. of Food Process Engineering; Addis Ababa Science and Technology Univ.; P. O. Box 16417 1000 Addis Ababa Ethiopia
3. Dept. of Nutrition and Food Technology, Faculty of Science and Technology; Omdurman Islamic Univ.; P.O. Box 382 14415 Khartoum Sudan
4. School of Food Science and Technology; Jiangnan Univ.; 1800 Lihu Ave Wuxi 214122 Jiangsu China