Strength Properties of Coated Paper with Cuminum cyminum L. and Prunus mahaleb L.

Abstract

Coating of the paper surface against to microorganism to making it suitable for food packaging is crucial in terms of improving antimicrobial properties. Cuminum cyminum L. known as cumin and Prunus mahaleb L. have the abundant chemical compound. Cumin has antiviral activity that making it proper for coating due to its various components. Mahaleb as well has rich fragrance make it eligible for sugary snacks and chocolate package. After coating with such biomaterials, thanks to varied fatty acids impart protective feature from oxidation to paper surface. It was observed that the odor of substances was trapped from paper samples. Wrapping paper selected as a base paper in this study. Cationic starch used for emulsifying the coating chemical. Cumin and mahaleb added the starch emulsion and coating suspension applied on the top pile of the paper with # 0 drawdown bar. Coating application reduced the paper's tear index results but increase tensile and burst index results in both cases. Mahaleb gives better Cobb60 value and bursting and tensile index and comparing to Cumin. However, cumin coated papers tensile index results in machine direction was better than mahaleb. Both natural substances are suitable material as an additive to the coating.