蜂胶
食品科学
食物腐败
食品包装
淀粉
复合数
聚乙烯醇
活性包装
花青素
硼酸
巴氏杀菌
化学
材料科学
复合材料
有机化学
细菌
生物
遗传学
作者
Pakeeza Mustafa,Muhammad Bilal Khan Niazi,Zaib Jahan,Ghufrana Samin,Arshad Hussain,Tahir Ahmed,Salman Raza Naqvi
摘要
Abstract Active and intelligent food packaging films has taken more importance over conventional packaging. The aim of this study was to develop active and intelligent food packaging films based on bio‐degradable polymers like polyvinyl alcohol and starch, incorporated with natural additives, that is, propolis extract (PE) and Anthocyanin. Boric acid was used as a cross‐linker. The results proved the compatibility of films mixture. The mechanical strength was also measured and highest value was achieved 6.1 MPa for films containing 20% PE. Moreover, the maximum zone of inhabitation, that is, 21 and 15 mm, was also achieved at same composition against Escherichia coli and methicillin‐resistant Staphylococcus aureus , respectively. Furthermore, all films had shown great color response against different pH ranging from 2 to 14. Finally, food spoilage test was performed using pasteurized milk. Films responded visibly by changing color and protected milk from spoilage. Hence, formulated bio‐degradable active and intelligent films can be used as food packaging material.
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