期刊
FRONTIERS IN CHEMISTRY
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2021.679116
关键词
chemical composition; antimicrobial; insecticidal; essential oil; perfume lemon; leaves
资金
- National Natural Science Foundation of China [81803390]
- Guangdong Basic and Applied Basic Research Foundation [2021A1515010221]
- Special Fund Project of Science and Technology Innovation Strategy of Guangdong Province [(2018)352, (2020)182]
- project of Jiangmen city social welfare innovation platform construction [2016350100170008351, 2018090103460022105]
- foundation of Department of Education of Guangdong Province [2020KZDZX1202, 2018KTSCX236, 2017KSYS010, 2016KCXTD005]
- Jiangmen Program for Innovative Research Team [2018630100180019806]
- Youth Foundation of Wuyi University [2017td01]
Two essential oils were isolated from discarded perfume lemon and leaves with good yield, rich in essential phytochemicals. The oils showed interesting chemotypes and exhibited similar biological activities against bacterial strains and Ae. albopictus larvae and adult mosquitoes. The study highlights the potential of using agricultural by-products for eco-friendly disinfectants and mosquito control products.
Two essential oils were isolated from discarded perfume lemon and leaves (Citrus limon (L.) Burm. F.) by hydro-distillation with good yield (0.044% for perfume lemon and 0.338% for leaves). Their biological activities were evaluated against five selected bacterial strains and Aedes albopictus (Ae. albopictus, Diptera: Culicidae). Chemical composition indicated that both essential oils were rich in essential phytochemicals including hydrocarbons, monoterpenes and sesquiterpene. These constituents revealed some variability among the oils displaying interesting chemotypes (R)-(+)-limonene (12.29-49.63%), citronellal (5.37-78.70%) and citronellol (2.98-7.18%). The biological assessments proved that the two essential oils had similar effect against bacterial (inhibition zones diameter ranging from 7.27 +/- 0.06 to 10.37 +/- 0.15 mm; MICs and MBCs ranging from 1.6 to 6.4 mg/mL); against Ae. albopictus larvae (LC50 ranging from 384.81 to 395.09 ppm) and adult mosquito (LD50 ranging from 133.059 to 218.962 mu g/cm(2)); the activity of the two chemotypes ((R)-(+)-limonene and citronellal): larvae (LC50 ranging from 267.08 to 295.28 ppm), which were all presented in dose-dependent manners. Through this work, we have showcased that recycling and reusing of agriculture by-products, such as discarded perfume lemon and leaves can produce eco-friendly alternatives in bacterial disinfectants and mosquito control product.
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