Azhar, A.N.H. and Panirselvam, M. and Amran, N.A. and Ruslan, M.S.H. and Samsuri, S.  (2020) Retention of total phenolic content and antioxidant activity in the concentration of broccoli extract by progressive freeze concentration.  International Journal of Food Engineering, 16 (10).   ISSN 21945764