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首页> 外文期刊>Journal of Microbiology, Biotechnology and Food Sciences >MODIFICATION OF PLA FOIL SURFACE BY ETHYLCELLULOSE AND ESSENTIAL OILS
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MODIFICATION OF PLA FOIL SURFACE BY ETHYLCELLULOSE AND ESSENTIAL OILS

机译：乙基纤维素和精油对PLA箔表面的改性

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The increasing consumer demand for safety and long-term products motivates the packaging industry to produce antimicrobial packaging. The task of the antimicrobial packaging is not only the inhibition of growth of the pathogenic microflora, but also the maintenance of sensory characteristics of the product for a long time. The aim of the study was to evaluate antimicrobial properties of modified PLA foils against Gram-positive and Gram-negative bacteria. Biodegradable PLA foils were covered 10% ethylcellulose (EC) as carrier and commercial essential oils from fennel, rosemary and caraway as active substances. Antimicrobial properties were tested against Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive). The study was conducted using the American method ASTM E 2180-01. The results of experiments showed that modified essential oils PLA foils reduced the amount of Gram-positive and Gram-negative bacteria. The best antibacterial properties would have PLA foil coating 10% EC with 50 mg/dm2 of fennel essential oil.
机译：消费者对安全性和长期产品的需求不断增长，促使包装行业生产抗菌包装。抗菌包装的任务不仅是抑制致病菌的生长，而且还要长期保持产品的感官特性。这项研究的目的是评估改性PLA箔对革兰氏阳性和革兰氏阴性细菌的抗菌性能。可生物降解的PLA箔覆盖有10％乙基纤维素（EC）作为载体，而茴香，迷迭香和香菜中的商业精油则作为活性物质。测试了针对大肠杆菌（革兰氏阴性）和金黄色葡萄球菌（革兰氏阳性）的抗菌性能。该研究使用美国方法ASTM E 2180-01进行。实验结果表明，改性精油PLA箔减少了革兰氏阳性菌和革兰氏阴性菌的数量。最好的抗菌性能是使用10 mg EC的PLA箔涂层和50 mg / dm2的茴香精油。

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