بررسي ويژگي هاي ضد ميكروبي فيلم تركيبي سلولز غني شده با اسانس ميخك

Investigation of antimicrobial activity of cinnamon-enriched cellulose film

دو پليمر كربوكسي متيل سلولز (CMC) و متيل سلولز (MC) به عنوان فيلم هاي زيست تخريب پذير خوراكي با هم مخلوط شد. CMC)) و متيل سلولز (MC) با نسبت هاي 25:75، 50:50 و 75:25 با يكديگر تركيب شده و مورد ارزيابي قرار گرفت. در مرحله بعد اسانس ميخك با سه سطح غلظتي 1، 5/1 و 2 درصد به ماتريس بيوپليمري فيلم ها اضافه گشت و خصوصيات فيزيكي، مكانيكي و ضدميكروبي آنها نيز مورد ارزيابي قرار گرفت. نتايج به دست آمده نشان دادند كه افزودن اسانس موجب شد تا درصد حلاليت فيلم ها بطور معني داري بيشتر از فيلم شاهد بدون اسانس گردد (05/0p

Both Carboxymethylcellulose (CMC) and Methyl Cellulose (MC) as biodegradable film mixed together. Physical and chemical properties of the mixed mention component that add together in 25/78, 50/50 and 75/20 ratios were investigated. The next step three levels of Clove essence (1, 1.5 and 2 percentage of media) were added to the biopolymers that were made before. The results indicated that added essential Clove essence to the media caused the solubility of film to raise more than control. Tensile strength and film length of the film affected by added essence in which tensile strength increased while essence had negative effect on film stretch. At the end Clove essence had inhibitor effect on Psedomonas aeroginose and Staphylococcus aureus. In 2 percentage of essence in pure mixed media had better inhibition effect on Staphylococcus aureus when it compared with control. The best physical and chemical condition was observed in media with equal level of CMC and MC and 1 percentage of Clove essence.