Encapsulation of Citronellal from Citronella Oil using β-Cyclodextrin and Its Application as Mosquito (Aedes aegypti) Repellent

3rd International Conference on Mathematics, Science and Education 2016

数学;自然科学;教育

Pujiastuti, A.^1 ; Cahyono, E.^1 ; Sumarni, W.^1

Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Semarang, Semarang

50229, Indonesia^1

关键词: Beta-cyclodextrin;    Coating technologies;    Controlled release;    ITS applications;    Mosquito repellency;    Repellent effects;    Sensitive materials;    Three dimensions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/824/1/012016/pdf
DOI  :  10.1088/1742-6596/824/1/012016

来源: IOP

【 摘 要 】

Mosquito (Aedes aegypti) is a threat to human health due to its capability to spread dengue fever. Citronellal in citronella oil is one ofnatural active compound that has repellent activity. Essential oil is a sensitive material whichiseasy to degrade. Encapsulation is coating technology use to avoid essential oil from degradation problems. β-Cyclodextrin is frequently used as acoating material in encapsulation. The aims of this study wereto prepare the citronellal encapsulation and to evaluate its control-released and repellency. In this study, encapsulated citronellal was prepared using 83.65% citronellal and encapsulation were prepared with the theemulsion-based method and dried using freeze-dryer. The best-controlled release was performed in citronellal encapsulate with a weight ratio of 1:1 (citronellal : β-Cyclodextrin). The morphology of encapsulated citronellal was analyzed using SEM. SEM result showed it has three dimensions random shape and agglomerate in some part with thebrighter spot. Citronellal encapsulate showed the highest repellent effect at 84,67% for 5 minutes in mosquito repellency test although it has lower result compared with citronellal inliquid form.