Laboratory of Biotechnology Applied to Agriculture, National Agricultural Research Institute of Tunisia (INRAT), University of Carthage, Tunis, Tunisia.
Laboratory of Biological Sciences, Higher Institute of Biotechnology of Beja.
Int J Environ Health Res. 2024 May;34(5):2315-2332. doi: 10.1080/09603123.2023.2245775. Epub 2023 Aug 16.
This study focused on encapsulation of Rosmarinus officinalis essential oil (EO) on chitosan and gum Arabic matrix in various ratios and with varying essential oil concentrations. Additionally, UV/VIS spectroscopy was used to determine cumulative-release profiles. The insecticidal activity was tested against and , both pests of stored products. In terms of encapsulation efficiency (EE%) and loading capacity (LC%), capsules had EE at 45.8% and LC at 2.31%. Furthermore, many minor compounds were lost after encapsulation, until identifying only 1,8-cineole, α-terpineol, and camphor after 60 d of storage. The fumigant tests demonstrated that encapsulated EO exhibited an effective control against insect pest during storage periods, namely, 30, 45, and 60 d with 99, 66, and 46% mortality for and 100, 84, 82% mortality for .
本研究聚焦于罗勒精油（EO）在壳聚糖和阿拉伯胶基质上的包封，比例和精油浓度各不相同。此外，还使用 UV/VIS 光谱法来确定累积释放曲线。杀虫活性测试针对 和 ，这两种都是仓储害虫。就包封效率（EE%）和载药量（LC%）而言，胶囊的 EE 为 45.8%，LC 为 2.31%。此外，许多微量化合物在包封后丢失，直到储存 60 天后才鉴定出 1,8-桉油醇、α-松油醇和樟脑。熏气测试表明，包封的 EO 在储存期间对害虫表现出有效的控制作用，即在 30、45 和 60 天内，对 和 的死亡率分别为 99%、66%和 46%，对 的死亡率为 100%、84%和 82%。
