Mosquito repellent microcapsules of nepeta essential oil were prepared by electro-atomization complex coacervation

被引：2

作者：

Zhang, Zhongkai ^{[3
]}

Hu, Xueqing ^{[3
]}

Pei, Yifeng ^{[4
]}

Han, Xiao ^{[3
]}

Yan, Bin ^{[3
]}

Qian, Yinjie ^{[3
]}

Dong, Hao ^{[4
]}

Yu, Xiaobin ^{[1
,3
]}

Cheng, Zhiqiang ^{[2
,5
]}

机构：

[1] Jilin Agr Univ, Coll Plant Protect, Changchun 130118, Peoples R China

[2] Jilin Agr Univ, Coll Resources & Environm, Changchun 130118, Peoples R China

[3] Jilin Agr Univ, Coll Plant Protect, Changchun, Peoples R China

[4] Jilin Agr Univ, Coll Life Sci, Changchun, Peoples R China

[5] Jilin Agr Univ, Coll Resources & Environm, Changchun, Peoples R China

来源：

POLYMER INTERNATIONAL | 2023年 / 72卷 / 07期

关键词：

complex coacervation; nepeta essential oil; mosquito repellent; sodium alginate; gelatin; MICROENCAPSULATION;

D O I：

10.1002/pi.6525

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Microcapsules containing nepeta essential oil (NEO) are prepared by electro-atomization complex coacervation with sodium alginate and gelatin as wall materials. The effects of conditions such as sodium alginate solution concentration, core-to-wall ratio and emulsifier content on the release of essential oil and mosquito repellent properties of the microcapsules are studied. The microcapsules prepared under optimal preparation conditions have good performance and morphology, the encapsulation efficiency and loading capacity being 86.65% and 13.93%, respectively. The prepared microcapsules have adequate morphological characteristics observed using scanning electron microscopy. Fourier transform infrared spectra and thermogravimetric analysis show that NEO is successfully loaded in the microcapsules, and the thermal stability of NEO is improved. In addition, the results of release and repellent tests show that the NEO in the microcapsules could achieve stable release within 15 days and maintain an avoidance rate above 80% within 48 h, indicating the potential application of the microcapsules in the field of mosquito repellents. (C) 2023 Society of Industrial Chemistry.

引用

页码：671 / 676

页数：6