ABSTRACT Vanname shrimp (Litopenaeus vannamei) is widely consumed by the community, on the other hand, the skin waste is underutilized. Shrimp shell has a potential use as a chitin product. Chitin can be isolated from shrimp shell by demineralization and then deproteination their shells. The demineralization process was carried out using citric acid. This study aimed to determine the effec…