Quality evaluation and shelf-life prediction model establishment of magnetic field-assisted modified atmosphere-packaged Gushi goose blocks based on game theory-weighted optimization

Quality preservation and shelf-life extension remain critical challenges in prepared meat products. This study systematically evaluated the preservation efficacy of modified atmosphere packaging (MAP) and magnetic field (MF)-assisted MAP on prepared Gushi goose blocks, while constructing a high-precision shelf-life prediction model integrated with game theory-based weight optimization. Results indicated that low-intensity (5 mT) alternating MF combined with 30% CO 2 /70% N 2 MAP significantly inhibited microbial proliferation and total volatile basic nitrogen (TVB-N) accumulation, preserved water-holding capacity (WHC), and color stability. At 4°C,shelf life was increased by 106.77% (based on total viable count (TVC)) or 115.23% (based on total volatile basic nitrogen (TVB-N)) compared to conventional MAP. After weighting calculations and correction of indicator correlation coefficients, the game theory-optimized model achieved a relative error below 20%, which significantly outperformed traditional models. This research provides theoretical support for the high-quality development of the prepared meat industry and expands the application of game theory in food shelf-life modeling. • A quality assessment of MF-assisted MAP was conducted on Gushi goose blocks. • MF-assisted MAP treatment prolonged shelf life versus MAP-only treatment. • A game theory-optimized model with relative error < 20% has been established. • The application of game theory in modeling meat shelf life has been expanded.