Differential toxicological effects of natural and synthetic sources and enantiomeric forms of limonene on mosquito larvae

Ross, Perran A., Nematollahi, Neda, Steinemann, Anne, Kolev, Spas D., and Hoffmann, Ary A. (2022) Differential toxicological effects of natural and synthetic sources and enantiomeric forms of limonene on mosquito larvae. Air Quality, Atmosphere and Health, 15. pp. 31-34.

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Common fragranced consumer products, such as cleaning supplies and personal care products, emit chiral compounds such as limonene that have been associated with adverse effects on human health. However, those same compounds abound in nature, and at similar concentrations as in products, but without the same apparent adverse human health effects. We investigated whether different types of limonene may elicit different biological effects. In this study, we investigated the mortality rate of mosquito larvae in response to changes in their environment. Specifically, we tested different sources of naturally occurring R-limonene and chemically synthetized limonene, containing one of its enantiomeric forms (R-, S-) in mortality bioassays with Aedes aegypti mosquito larvae. We found that a natural source of limonene extracted from oranges induced lower mortality of mosquito larvae compared to synthetic sources at the same concentration. However, enantiomeric forms did not differ in their effects on mortality. Our results provide novel evidence that natural sources of a chemical can cause lower rates of mortality than synthetic sources.

Item ID: 70548
Item Type: Article (Research - C1)
ISSN: 1873-9326
Keywords: Bioassay, Biological effects, Fragranced consumer products, LC 50, Limonene, Mosquitoes
Copyright Information: © The Author(s) 2021 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funders: National Health and Medical Research Council (NHMRC)
Date Deposited: 28 Sep 2022 05:53
FoR Codes: 40 ENGINEERING > 4011 Environmental engineering > 401199 Environmental engineering not elsewhere classified @ 100%
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