Lee Junseok, Shin Hojun, Sadeghi Kambiz, Seo Jongchul
Department of Packaging and Logistics, Yonsei University, 1 Yonseidae-gil, Wonju-si 26493, Gangwon State, Republic of Korea.
School for Engineering of Matter, Transport and Energy, Arizona State University, 501 E Tyler Mall, Tempe, AZ 85287, USA.
Molecules. 2025 May 3;30(9):2041. doi: 10.3390/molecules30092041.
Chlorine dioxide (ClO) is a powerful sterilizing agent that is widely used to prevent the spoilage of fresh foods during delivery and storage. However, its practical applications are hindered by a short sterilization duration, complex deployment processes, and high treatment costs. To address these challenges, an innovative ClO self-releasing sachet was developed, which was specifically designed for use in retail and wholesale markets. The sachet utilizes polyether block amide (PEBAX) as a hydrophilic polymer to facilitate the dissociation of sodium chlorite (NaClO) and citric acid (CA), which generates ClO. A PEBAX/CA composite film was coated onto kraft paper to construct the sachet. This design extended the ClO release period to over 3 d, with a controllable release rate being achieved by adjusting the concentrations of NaClO and CA. In practical tests, the sachets inhibited fungal growth by >50% over 14 d at 20 °C within a corrugated box. Furthermore, they preserved the quality of the cherry tomatoes for 16 d during storage. These results demonstrate that the newly developed sachet offers an economical and user-friendly solution for fresh-food packaging, effectively preserving product quality.
二氧化氯（ClO）是一种强大的消毒剂，广泛用于防止新鲜食品在运输和储存过程中变质。然而，其实际应用受到杀菌持续时间短、部署过程复杂和处理成本高的阻碍。为应对这些挑战，开发了一种创新的ClO自释放小袋，专门设计用于零售和批发市场。该小袋利用聚醚嵌段酰胺（PEBAX）作为亲水性聚合物，以促进亚氯酸钠（NaClO）和柠檬酸（CA）的解离，从而产生ClO。将PEBAX/CA复合膜涂覆在牛皮纸上以制作小袋。这种设计将ClO释放期延长至3天以上，通过调整NaClO和CA的浓度可实现可控的释放速率。在实际测试中，这些小袋在20°C的瓦楞纸箱内14天内抑制真菌生长超过50%。此外，它们在储存期间将樱桃番茄的品质保持了16天。这些结果表明，新开发的小袋为新鲜食品包装提供了一种经济且用户友好的解决方案，有效地保持了产品质量。
