Two commercial biopesticides were studied to determine their persistence in two soil types, such as sandy clay loam and clay loam soils. For this purpose, an orange oil-based biopesticide was used, being limonene its main ingredient. The other biopesticide was based on cinnamon extract and trans-cinnamaldehyde as its main component. Degradation of these compounds was monitored, and transformation products or metabolites were detected. Limonene and its metabolites were analyzed by gas chromatography (GC) and trans-cinnamaldehyde by ultra-high-performance liquid chromatography (UHPLC). Both techniques were coupled to a high-resolution mass (HRMS) analyzer, such as quadrupole (Q)-Orbitrap. Limonene and trans-cinnamaldehyde were rapidly degraded as result of first-order kinetics. Possible metabolites such as thymol, cymene, isoterpinolene and cymenene for limonene, and hydroxycinnamic acid for trans-cinnamaldehyde were tentatively identified. Moreover, four other metabolites of trans-cinnamaldehyde, some of them not previously described, were also detected.
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http://dx.doi.org/10.1007/s11356-024-33334-6 | DOI Listing |
Front Pharmacol
November 2024
Infectious Diseases Research Center (IDRC), Arak University of Medical Sciences, Arak, Iran.
Pest Manag Sci
November 2024
China and Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
Background: Citrus huanglongbing (HLB) is a devastating disease in citrus, caused by Candidatus Liberibacter asiaticus (CLas), which primarily resides in the phloem where chemicals cannot effectively reach, posing a significant challenge in controlling HLB. To address these challenges, plant essential oils (EOs), widely used as transdermal enhancers and known for their benefits for plant tissues, were investigated for their potential to enhance chemical permeation.
Results: In this study, seven EOs - eugenol, carvacrol, eucalyptol, geraniol, linalool, cinnamaldehyde, and d-limonene - were evaluated for their potential to enhance chemical penetration into citrus leaves.
Food Chem X
December 2024
College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
To reduce the risk of -nitrosamines in deli meat products, this study formulated a novel non-contact -nitrosamines inhibiting preservative IV (NIP-IV) consisting of biocontrol bacteria and plant essential oils (EOs) ( SR-1 + PP-2 + CF-3+ cinnamon EO + grapefruit EO). Luncheon pork, spiced beef, and red sausage were taken as representatives of typical deli meat products and used to validate the effectiveness of NIP-IV in inhibiting -nitroso dimethylamine (NDMA) production. The results showed that NIP-IV restrain protein degradation and lipid oxidation in deli meat products and effectively control microbial activity.
View Article and Find Full Text PDFVet Parasitol
December 2024
Parasitology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.
Biofouling
September 2024
Department of Medical Microbiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey.
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