Antibacterial and antibiofilm activities of chitosan nanoparticles loaded with Ocimum basilicum L. essential oil

被引：64
作者：
Cai, Mingdi [1 ]
Wang, Yiting [1 ]
Wang, Ru [1 ]
Li, Miaomiao [1 ]
Zhang, Wei [1 ]
Yu, Jicheng [1 ]
Hua, Ruinian [1 ]
机构：
[1] Dalian Minzu Univ, Coll Life Sci, Dalian 116600, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2022年 / 202卷
关键词：
Ocimum basilicum L. essential oil; Chitosan; Encapsulation; Antibacterial activity; Antibiofilm activity; STAPHYLOCOCCUS-AUREUS; ANTIOXIDANT; MECHANISM; MICROPARTICLES; FABRICATION; ANTIFUNGAL; RELEASE; THYMOL; DRUG;
D O I：
10.1016/j.ijbiomac.2022.01.066
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Nanoencapsulation has been verified to be an effective technique to improve the physical stability of essential oils. In this study, Ocimum basilicum L. essential oil (BEO) was encapsulated into chitosan nanoparticles by emulsion and ionic gelation. The success of BEO loading was revealed by Fourier transform infrared (FTIR) spectroscopy, ultraviolet visible spectrophotometry and X-ray diffraction (XRD) analyses. Scanning electron microscopy (SEM) images and dynamic light scattering (DLS) illustrated regular distribution and spherical morphology with a particle size range of 198.7 - 373.4 nm. The prepared samples had an encapsulation efficiency (EE) range of 50.39 5.13% and a loading capacity (LC) range of 7.22-19.78%. Encapsulation of BEO into chitosan nanocarriers demonstrated strong antibacterial and antibiofilm capacity against E. coli and S. aureus with inhibition diameter of 15.3 mm and 21.0 mm, respectively, and the obtained nanoparticles were found to damage cell membranes and cause the leakage of biological macromolecules.
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收藏
页码：122 / 129
页数：8
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