Alterations in the fillet quality of myostatin-knockout red sea bream Pagrus major: Preliminary insights into nutritional, compositional, and textural properties

• DOI: 10.1016/j.heliyon.2024.e32242
• Publication Date: 2024-05-31T17:27:04Z
• Authors: Yu Murakami; Masashi Ando; Kenta Kishimoto; Mitsuki Ohama; Yuto Uemura; Reoto Tani; Atsushi Akazawa; Kentaro Matsumiya; Kenji Sato; Masato Kinoshita
• Keywords: Fillet (mechanics); Pagrus major

Myostatin (MSTN) is a negative regulator of skeletal muscle growth and popular target for enhancing the productivity farmed fish. We previously developed an mstn-knockout breed aquaculture fish red sea bream (Pagrus major) using genome editing technology. However, little known about effects mstn disruption on fillet quality other species. In this study, we used fillets mstn-deficient to evaluate their compositional textural changes during refrigeration. Compared wild type, mutant exhibited increase in moisture content decrease drippings, indicating enhanced water-holding capacity. Furthermore, showed increased water retention marginally lower collagen content, resulting breaking force, index texture. conclusion, demonstrated that alters properties fillets.