Dmitrenko Mariia, Pasquini Daniel, Kuzminova Anna, Dzhakashov Ilnur, Thomas Sabu, Penkova Anastasia
St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia.
Instituto de Química, Universidade Federal de Uberlândia, Campus Santa Mônica, Av. João Naves de Ávila, 2121, Uberlândia, Minas Gerais 38400-902, Brazil.
ACS Omega. 2025 Mar 27;10(13):13555-13569. doi: 10.1021/acsomega.5c00480. eCollection 2025 Apr 8.
The packaging material must be safe for food, humans, and the environment, which makes the work on creating edible biodegradable packaging from polymers relevant. In this work, sustainable edible carrageenan/starch nanodispersions reinforced with nanocellulose (NC) for packaging (coating) of products were developed to improve their shelf life and preservation. The effect of the polysaccharide ratio and NC particle forms on nanodispersion properties and coating process was investigated. Various analysis methods were applied to study nanodispersions, determining particle shape, size, density, surface tension, viscosity, and contact angles onto fruits/vegetables. Nanodispersions were coated onto apples, bananas, and peppers for evaluation of their storage. The nanodispersions with 33.3/66.7 wt % carrageenan/starch with 5% NC fibrils or 10% NC crystals demonstrated the potential for applying on fruits as packaging due to decreased water loss from fruits/vegetables. They can be used prospectively by spraying on fruits/vegetables during harvesting since they consist of components actively used in the food industry.
包装材料必须对食品、人类和环境安全，这使得从聚合物制备可食用生物降解包装的工作具有重要意义。在这项工作中，开发了用纳米纤维素（NC）增强的可持续食用角叉菜胶/淀粉纳米分散体，用于产品包装（涂层），以延长其保质期和保鲜期。研究了多糖比例和NC颗粒形态对纳米分散体性能和涂层工艺的影响。应用各种分析方法研究纳米分散体，确定颗粒形状、尺寸、密度、表面张力、粘度以及在水果/蔬菜上的接触角。将纳米分散体涂覆在苹果、香蕉和辣椒上以评估其储存效果。含有33.3/66.7 wt%角叉菜胶/淀粉以及5%NC原纤维或10%NC晶体的纳米分散体，由于水果/蔬菜水分流失减少，显示出作为水果包装材料的应用潜力。由于它们由食品工业中常用的成分组成，因此有望在收获时喷洒在水果/蔬菜上使用。
