1. Advanced Food Processing Research Laboratory, Dept. of Food Engineering; Faculty of Engineering, King Mongkut's Univ. of Technology Thonburi; 126 Pracha u-tid Road, Tungkru Bangkok 10140 Thailand
2. Dept. of Food Technology, Faculty of Science; Siam Univ; 38 Phetkasem Road, Phasicharoen Bangkok 10160 Thailand