基于纤维素生物复合膜的天然花青素指示剂用于监测鸡里脊肉新鲜度的特性研究。

Characterization of Natural Anthocyanin Indicator Based on Cellulose Bio-Composite Film for Monitoring the Freshness of Chicken Tenderloin.

机构信息

Department of Packaging, Yonsei University, Wonju 220-710, Korea.

Rattanakosin International College of Creative Entrepreneurship (RICE), Rajamangala University of Technology Rattanakosin, Nakhon Pathom 73170, Thailand.

出版信息

Molecules. 2022 Apr 25;27(9):2752. doi: 10.3390/molecules27092752.

Intelligent packaging with indicators that provide information about the quality of food products can inform the consumer regarding food safety and reduce food waste. A solid material for a pH-responsive indicator was developed from hydroxypropyl methylcellulose (HPMC) composited with microcrystalline cellulose (MCC). MCC at 5%, 10%, 20%, and 30% / was introduced into the HPMC matrix and the physical, barrier, thermal, and optical properties of the HPMC/MCC bio-composite (HMB) films were analyzed. At 5, 10, and 20% MCC, improved mechanical, transparency, and barrier properties were observed, where HMB with 20% of MCC (H20MB) showed the best performance. Therefore, H20MB was selected as the biodegradable solid material for fabricating Roselle anthocyanins (RA) pH sensing indicators. The performance of the RA-H20MB indicator was evaluated by monitoring its response to ammonia vapor and tracking freshness status of chicken tenderloin. The RA-H20MB showed a clear color change with respect to ammonia exposure and quality change of chicken tenderloin; the color changed from red to magenta, purple and green, respectively. These results indicated that RA-H20MB can be used as a biodegradable pH sensing indicator to determine food quality and freshness.

智能包装具有提供食品质量信息的指标，可以让消费者了解食品安全并减少食物浪费。本研究以羟丙基甲基纤维素（HPMC）与微晶纤维素（MCC）复合，开发出一种用于 pH 响应指示剂的固体材料。将 5%、10%、20%和 30%的 MCC 分别引入 HPMC 基质中，并分析了 HPMC/MCC 生物复合材料（HMB）薄膜的物理、阻隔、热学和光学性能。在 5%、10%和 20%的 MCC 条件下，观察到机械性能、透明度和阻隔性能得到了改善，其中含有 20% MCC 的 HMB（H20MB）表现出最佳性能。因此，H20MB 被选为用于制备洛神花花青素（RA）pH 传感指示剂的可生物降解固体材料。通过监测其对氨蒸气的响应并跟踪鸡胸肉的新鲜度状态，评估了 RA-H20MB 指示剂的性能。RA-H20MB 对氨气暴露和鸡胸肉质量变化表现出明显的颜色变化，颜色分别从红色变为洋红色、紫色和绿色。这些结果表明，RA-H20MB 可用作可生物降解的 pH 传感指示剂，以确定食品质量和新鲜度。