Journal
FOOD HYDROCOLLOIDS
Volume 118, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2021.106695
Keywords
pH-sensitive film; Curcumin; Anthocyanins; Konjac glucomannan; Meat freshness
Categories
Funding
- 2020-2021 Anhui Province Poultry Industry Competitiveness Improvement Science and Technology Action Project [AHCYJSTX-06-202008]
- Anhui Province University Student Innovation and Entrepreneurship Project [S202010364006]
- Anhui Provincial Major Technology Special Projects [17030701021, 17030701036]
- Third Batch of Industrial Innovation Team in Northern Anhui (the Processing Innovation Team of HighQuality Low-temperature Meat Products)
- National Innovation and Entrepreneurship Training Program for College Students [202010364002]
- Huangshan Science and Technology Plan Project [2018 KN-02]
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Double-layer indicator film was fabricated for monitoring chicken meat freshness, with different components bound together by hydrogen bond. The presence of the KC layer significantly improved the performance of the indicator layer, and the CAR-ATH-KC and CAR-ATH-CUR-KC labels showed more obvious color changes at 25℃ compared to the CAR-CUR-KC label.
Double-layer indicator film (DIF, the indicator layer made of carrageenan (CAR), curcumin (CUR) and/or anthocyanin (ATH), and the emulsified layer (named KC layer) made of konjac glucomannan (KGM) and camellia oil.) was fabricated to monitor the chicken meat freshness in this study. The three kinds of DIFs (CAR-ATH-KC, CAR-ATH-CUR-KC and CAR-CUR-KC) were tested. The results of FTIR demonstrated that different components were bound together by hydrogen bond. The double-layer structure films were clearly observed by SEM images. The presence of KC layer significantly improved the thermal stability, water- and UV-resistance performance, and mechanical properties of the indicator layer. Furthermore, Visual observation indicated that the CAR-ATH-KC and CAR-ATH-CUR-KC labels used to monitor the chicken meat freshness at 25 ?C presented the more obvious color change than the CAR-CUR-KC label.
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