Effects of natural and synthetic antioxidants on changes in RBD palm olein during deep-fat frying - Che Man, Yaakob; Tan, Chin Ping; Irwandi, Jaswir; Liu, Jia Long; Selamat, Jinap; Mohd Ghazali, Hasanah; Jamilah, B.; Yusoff, M. S. A. (The Research Unit, Universiti Putra Malaysia, 1999)