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首页> 美国卫生研究院文献>Molecules >Zuccagnia punctata Cav. Essential Oil into Poly(ε-caprolactone) Matrices as a Sustainable and Environmentally Friendly Strategy Biorepellent against Triatoma infestans (Klug) (Hemiptera Reduviidae)
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Zuccagnia punctata Cav. Essential Oil into Poly(ε-caprolactone) Matrices as a Sustainable and Environmentally Friendly Strategy Biorepellent against Triatoma infestans (Klug) (Hemiptera Reduviidae)

机译：Zuccagnia punctata cav。精油中的聚（ε-己内酯）矩阵作为可持续和环保的策略BioRepellent对抗三元嗜睡症（Klug）（HemipteraReduviidae）

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The main strategies against Triatoma infestans (primary vector responsible for the Chagas disease transmission) are the elimination or reduction of its abundance in homes through the application of insecticides or repellents with residual power, and environmental management through the improvement of housing. The use of plant-derived compounds as a source of therapeutic agents (i.e., essential oils from aromatic plants and their components) is a valuable alternative to conventional insecticides and repellents. Essential oil-based insect repellents are environmentally friendly and provide reliable personal protection against the bites of mosquitoes and other blood-sucking insects. This study investigates, for the first time to our knowledge, the potential repellent activity of Zuccagnia punctata essential oil (ZEO) and poly(ε-caprolactone) matrices loaded with ZEO (ZEOP) prepared by solvent casting. The analysis of its essential oil from aerial parts by GC–FID and GC-MS, MS allowed the identification of 25 constituents representing 99.5% of the composition. The main components of the oil were identified as (−)-5,6-dehydrocamphor (62.4%), alpha-pinene (9.1%), thuja-2, 4 (10)-diene (4.6%) and dihydroeugenol (4.5%). ZEOP matrices were homogeneous and opaque, with thickness of 800 ± 140 µm and encapsulation efficiency values above 98%. ZEO and ZEOP at the lowest dose (0.5% wt./wt., 96 h) showed a repellency of 33 and 73% respectively, while at the highest dose (1% wt./wt., 96 h) exhibited a repellent activity of 40 and 66 %, respectively. On the other hand, until 72 h, ZEO showed a strong repellent activity against T. infestans (88% repellency average; Class V) to both concentrations, compared with positive control N-N diethyl-3-methylbenzamide (DEET). The essential oils from the Andean flora have shown an excellent repellent activity, highlighting the repellent activity of Zuccagnia punctata. The effectiveness of ZEO was extended by its incorporation in polymeric systems and could have a potential home or peridomiciliary use, which might help prevent, or at least reduce, Chagas’ disease transmission.
机译：对骚扰锥蝽的主要策略（负责恰加斯病传输初级矢量）是通过外壳的改进的消除或通过杀虫剂或驱虫剂的应用具有残余功率降低其丰度在家庭的，和环境管理。作为治疗剂（即，来自芳香植物及其部件精油）的源的使用植物来源的化合物是常规杀虫剂和驱虫剂一种有价值的替代。基本石油为基础的驱虫剂是环境友好的，并提供对蚊子等吸血昆虫叮咬可靠的个人防护。本研究探讨，在第一次就我们所知，Zuccagnia的电位驱避活性点状通过溶剂浇铸制备精油（ZEO）和聚（ε - 己内酯）的矩阵装入ZEO（ZEOP）。其挥发油通过GC-FID和GC-MS地上部分的分析，MS允许的表示所述组合物的99.5％的25种成分的鉴定。油的主要成分被确定为（ - ） - 5,6- dehydrocamphor（62.4％），α-蒎烯（9.1％），金钟柏-2，4（10） - 二烯（4.6％）和二氢丁香酚（4.5％ ）。 ZEOP矩阵是均匀的和不透明的，具有98％以上800个±140微米和包封效率值的厚度。 ZEO和ZEOP在最低剂量（0.5％wt./wt。，96小时）显示出的33和73％分别排斥性，而在最高剂量（1％wt./wt。，96小时）显示出驱避活性的40和66％之间。在另一方面，直至72小时，ZEO显示针对T.霉很强的驱避活性（88％驱虫平均值; V类），以两种浓度，与阳性对照N-N二乙基-3-甲基苯甲酰胺（DEET）相比较。从安第斯菌群精油已经显示优异的驱避活性，突出Zuccagnia点状的驱避活性。 ZEO的有效性进行了在聚合物体系掺入延长，并可能有潜在的家庭或peridomiciliary使用，这可能有助于防止，或至少减少，南美锥虫病的传播。

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