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甘蓝红-塔拉胶膜在巴氏杀菌乳新鲜程度监测中的应用研究 预览

Study on Application of Cabbage Red-tara Gum Film for Pasteurised Milk Freshness Monitoring
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摘要 为制备具有pH变色响应性的功能膜材料,将具有pH敏感性的甘蓝红添加到塔拉胶膜基质中,研究了甘蓝红对膜材料物化性质和力学性能的影响,以及膜材料在巴氏杀菌乳体系中的应用。结果表明,甘蓝红不影响塔拉胶膜的化学组成,但会导致膜晶体结构的变化;甘蓝红的添加使膜材料柔韧性有所提升,其断裂延伸率提高了83.8%,而拉伸强度略有下降。此外,巴氏杀菌乳质量变化过程中的酸度与pH呈线性相关,同时发现不同牛奶溶液的pH与甘蓝红-塔拉胶膜的色度值变化呈线性相关。对巴氏杀菌乳真实体系的质量变化过程的进一步检测表明,甘蓝红-塔拉胶膜能够快速、准确检测其质量变化过程中的酸度变化情况,适用于伴随pH变化的食品新鲜程度的可视化监测。 Cabbage red with pH-sensitivity was added to tara gum film to prepare pH-sensing intelligent film. Effects of cabbage red on physicochemical and mechanical properties of film were initially studied and then application of the film in pasteurised milk system was investigated. Results showed that cabbage red did not affect the chemical composition of films, but led to the change in its crystalline structure. The addition of cabbage red could improve the flexibility of the film, its breaking elongation rate increased by 83.8 %, while the tensile strength decreased slightly. In addition, it was confirmed that the acidity value of the pasteurised milk was linearly related with the pH during the change of freshness, and it was found that the pH of simulated milk solution was linearly related with the chromaticity change of the cabbage red-tara gum film. And further detection of the real system of pasteurised milk freshness showed that the cabbage red-tara gum film could rapidly and accurately monitor the change of acidity during the change of its quality, which was suitable for application in monitoring the food freshness following with pH change.
作者 黄正农 刘飞 钟芳 Huang Zhengnong;Liu Fei;Zhong Fang(Guangdong Experimental High School, Guangzhou 510375;State Key Laboratory of Food Science and Technology, Jiangnan University,Wuxi 214122;School of Food Science and Technology, Jiangnan University, Wuxi 214122, China)
出处 《广东化工》 CAS 2019年第7期107-109,95共4页 Guangdong Chemical Industry
关键词 甘蓝红 塔拉胶膜 巴氏杀菌乳新鲜程度 PH响应 食品新鲜程度监测可视标签 cabbage red tara gum film pasteurised milk freshness pH-sensing visual labels for food freshness monitoring
作者简介 黄正农(2000-),男,广东佛山人,高中学生。
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