T. Agustin, H. Nursyam, M. Firdaus, M. Rifa'I, I.D. Ekaputri, Mahmiah
Shark's cartilage contains several health-promoting substances, with glucosamine and chondroitin being key components. This study examined the proximate, mineral, amino acid, and chondroitin sulfate content of blue shark (Prionace glauca) cartilage, focusing on how different cartilage diameters affect these characteristics. Using a Complete Randomized Design, the experiment included three treatments based on cartilage diameter: small (A, 1-2 cm), medium (B, 2.1-3 cm), and large (C, 3.1-4 cm), each with four replications. Observed parameters included proximate composition, amino acid profile, mineral content, and chondroitin sulfate levels. Data were analyzed using ANOVA, followed by a Least Significant Difference test. Thehighest protein content (46.20%) was found in the smallest diameter cartilage (A). The cartilagecontained 10 essential and 8 non-essential amino acids, with arginine (6.16%) and glycine (10.91%) being the most abundant in the largest cartilage (C). The highest calcium (184,500 ppm) and phosphorus (89,450 ppm) levels were also found in the largest cartilage. Chondroitinsulfate was most abundant (11.54%) in the medium-sized cartilage (B). ANOVA results showed no significant effect of cartilage diameter on any parameter (P>0.05), suggesting that cartilage size does not determine its potential as a natural health supplement. © Published under licence by IOP Publishing Ltd.
Fisheries and Marine Science Graduate Program, Faculty of Fisheries and Marine Science, University of Brawijaya, Jl. Veteran Malang, East Java, 65149, Indonesia; Fisheries Study Program, Faculty of Engineering Marine Science, University of Hang Tuah, Jl. Arief Rahman Hakim 150, Surabaya, 60111, Indonesia; Department of Aquatic Product Technology, Faculty of Fisheries and Marine Science, University of Brawijaya, Jl. Veteran Malang, East Java, 65149, Indonesia; Department of Biology, Faculty of Mathematics and Natural Sciences, University of Brawijaya, Malang, Indonesia
