Hanif, A. and Afifah , I.Q. 2024. Characteristics of halal gelatin from spanish mackerel (Scomberomorus commersonii) bone gelatin isolated with bromelain enzyme pretreatment. Journal of Halal Product and Research (JHPR). 7, 2 (Dec. 2024), 147–157. DOI:https://doi.org/10.20473/jhpr.vol.7-issue.2.147-157.