Development of ammonia-sensitive carboxymethyl cellulose/pectin colorimetric films with sodium lignosulfonate-regulated ZIF-67 for pork freshness monitoring - Zhihang Xu; Jian Du; Peng Shan; Yali Zhao; Chenglong Fu; Jinwen Hu; Yehan Tao; Chao Li; Yanna Lv; Haisong Wang (Food Bioscience, 2026)