A novel bio-based time-temperature dependent colorimetric indicator film incorporated with Amaranthus leaf extract for beef freshness tracking - Muhammad Shahar Yar; Isaiah Henry Ibeogu; Muhammad Adnan; Faiza Rehman; Abisikha Regmi; Meng Zhou; Muhammad Bilal; Zheng Liu; Hadiza Kabir Bako; Chunbao Li (Food Chemistry, 2025)