Chuah, L.F. and Bokhari, A. and Yusup, S. and Klemeš, J.J. and Akbar, M.M. and Saminathan, S. (2021) Correction to: Optimisation on pretreatment of kapok seed (Ceiba pentandra) oil via esterification reaction in an ultrasonic cavitation reactor (Biomass Conversion and Biorefinery, (2017), 7, 1, (91-99), 10.1007/s13399-016-0207-9). Biomass Conversion and Biorefinery, 11 (6). p. 3071. ISSN 21906815