Aksaray University, Güzelyurt Vocational School, Department of Vegetable and Animal Production, Güzelyurt, Aksaray, Turkey.
Aksaray University, Faculty of Science and Letters, Department of Biotechnology and Molecular Biology, 68100 Aksaray, Turkey.
Int J Biol Macromol. 2018 Jul 15;114:1224-1232. doi: 10.1016/j.ijbiomac.2018.04.029. Epub 2018 Apr 7.
To overcome the drawbacks of synthetic films in food packaging industry, researchers are turned to natural bio-based edible films enriched with various plant additives. In current study chitosan blend films were produced by incorporating Camelina sativa seed oil at varying concentrations to chitosan matrix. The chitosan blend films were characterized both physicochemically (structural, morphological, thermal, optical and mechanical) and biologically (antimicrobial and antioxidant activity). The incorporation of C. sativa seed oil notably enhanced thermal stability, antioxidative, anti-quorum sensing and antimicrobial activity. Except elongation at break, other mechanical properties of the blend films were not affected by incorporation of C. sativa seed oil. The surface morphology of blend films was recorded as slightly rough, non-porous and fibre-free surface. As it was expected the optical transmittance in visible region was gradually decreased with increasing fraction of seed oil. Interestingly the hydrophilicity of the blend films revealed a swift increase which can be explained by the formation of micelle between glycerol and Tween 40 in blend films. This study provides valuable information for C. sativa seed oil to be used as a blending ingredient in chitosan film technology.
为了克服食品包装行业中合成薄膜的缺点，研究人员转向了富含各种植物添加剂的天然生物可食用薄膜。在当前的研究中，通过在壳聚糖基质中加入不同浓度的荠蓝籽油，制备了壳聚糖共混膜。对壳聚糖共混膜进行了物理化学（结构、形态、热学、光学和力学）和生物学（抗菌和抗氧化活性）特性的表征。荠蓝籽油的加入显著提高了热稳定性、抗氧化、抗群体感应和抗菌活性。除了断裂伸长率外，共混膜的其他力学性能不受荠蓝籽油的影响。共混膜的表面形貌记录为稍微粗糙、无孔和无纤维的表面。正如预期的那样，可见光区域的透光率随着种子油分数的增加而逐渐降低。有趣的是，共混膜的亲水性迅速增加，这可以用甘油和吐温 40 在共混膜中形成胶束来解释。这项研究为荠蓝籽油作为壳聚糖膜技术的共混成分提供了有价值的信息。
