Bahrami Arash, Fattahi Reza
Department of Food Science and Technology Faculty of Agriculture University of Tabriz Tabriz Iran.
Department of Food Science and Technology Faculty of Agriculture Tarbiat Modares University Tehran Iran.
Food Sci Nutr. 2021 Jul 5;9(9):4974-4985. doi: 10.1002/fsn3.2449. eCollection 2021 Sep.
L. root essential oil (GGEO) has well-known antimicrobial and therapeutic features. In this study, a new antimicrobial carboxymethyl cellulose-polyvinyl alcohol (CMC-PVA) binary film was developed using GGEO as an active compound. The effects of various concentrations of GGEO (0.25%, 0.50%, and 0.75%) were scrutinized on the physicochemical and antibacterial properties of composites. It was discovered that GGEO significantly reduced the composite ultimate tensile strength from 17.01 to 3.86 MPa. Further, by increasing the concentration of GGEO to 0.75%, the water vapor permeability and moisture content increased to 13.61 × 10 g/m s Pa and 41.06%, respectively. The results indicated that the active films possessed good inhibitory effects against the gram-positive bacteria () and were less powerful against gram-negative bacteria (). Finally, the results highlighted that GGEO can act as an excellent antimicrobial agent in combination with CMC-PVA composite.
罗勒根精油（GGEO）具有众所周知的抗菌和治疗特性。在本研究中，以GGEO作为活性化合物制备了一种新型抗菌羧甲基纤维素 - 聚乙烯醇（CMC - PVA）二元膜。研究了不同浓度（0.25%、0.50%和0.75%）的GGEO对复合材料理化性能和抗菌性能的影响。结果发现，GGEO使复合材料的极限拉伸强度从17.01MPa显著降低至3.86MPa。此外，将GGEO浓度提高到0.75%时，水蒸气透过率和含水量分别增加到13.61×10 g/m s Pa和41.06%。结果表明，活性膜对革兰氏阳性菌（）具有良好的抑制作用，而对革兰氏阴性菌（）的抑制作用较弱。最后，结果表明GGEO与CMC - PVA复合材料结合可作为一种优异的抗菌剂。
