Sharma Shubham, Mulrey Lilly, Byrne Megan, Jaiswal Amit K, Jaiswal Swarna
School of Food Science and Environmental Health, Technological University Dublin-City Campus, Central Quad, Grangegorman, D07 ADY7 Dublin, Ireland.
Environmental Sustainability and Health Institute (ESHI), Technological University Dublin-City Campus, Grangegorman, D07 H6K8 Dublin, Ireland.
Foods. 2022 Aug 5;11(15):2337. doi: 10.3390/foods11152337.
Active packaging improves a packaging system's effectiveness by actively integrating additional components into the packaging material or the headspace around the packaging. Consumer demand and awareness have grown enough to replace chemical agents with natural active agents. Essential oils (EOs) are extensively distributed throughout nature but at low levels and sometimes with poor recovery yields, which poses an issue with their application in food. Due to the instability of EOs when added directly into a food product, they require encapsulation before being added to a packaging matrix such as liposomes, solid-lipid nanoparticles, nano-emulsions, cyclodextrins, and nanostructured lipid nano-carriers. This article is focused on the encapsulation of EOs in different types of nanocarriers. Nanocarriers can improve the efficiency of active substances by providing protection, stability, and controlled and targeted release. The advantages of the many types of nanocarriers that contain active substances that can be used to make antibacterial and antioxidant biopolymeric-based active packaging are discussed. A nanocarrier-encapsulated EO enables the controlled release of oil, stabilizing the packaging for a longer duration.
活性包装通过将额外的成分主动整合到包装材料或包装周围的顶空中，提高了包装系统的有效性。消费者的需求和意识已经发展到足以用天然活性剂取代化学剂的程度。精油（EOs）广泛分布于自然界，但含量较低，有时回收率也不高，这给它们在食品中的应用带来了问题。由于直接添加到食品中时精油不稳定，在添加到脂质体、固体脂质纳米颗粒、纳米乳液、环糊精和纳米结构脂质纳米载体等包装基质之前，它们需要进行封装。本文重点关注精油在不同类型纳米载体中的封装。纳米载体可以通过提供保护、稳定性以及控制和靶向释放来提高活性物质的效率。讨论了多种含有活性物质的纳米载体的优点，这些纳米载体可用于制造基于抗菌和抗氧化生物聚合物的活性包装。纳米载体封装的精油能够实现油的控释，使包装在更长时间内保持稳定。
