1. Dept. of Food Technology, Facul. of Food Science and TechnologyUniv. Putra Malaysia 43400 Serdang Selangor Malaysia
2. Dept. of Food Science, Facul. of Food Science and TechnologyUniv. Putra Malaysia 43400 Serdang Selangor Malaysia
3. Dept. of Biochemistry, Facul. of ScienceUsmanu Danfodiyo Univ., Sokoto P.M.B 2346 Sokoto Nigeria
4. Dept. of Food Technology, School of Engineering TechnologyUniv. College of Technology Sarawak Persiaran Brooke 96000 Sibu Sarawak Malaysia
5. Inst. of Chemical and Bioengineering TechnologyUniv. Kuala Lumpur Malaysia 78000 Malacca Malaysia