Apiaceae essential oil nanoemulsions as effective wheat protectants against five arthropod pests was written by Kavallieratos, Nickolas G.;Nika, Erifili P.;Skourti, Anna;Perinelli, Diego Romano;Spinozzi, Eleonora;Bonacucina, Giulia;Cappellacci, Loredana;Morshedloo, Mohammad Reza;Canale, Angelo;Benelli, Giovanni;Maggi, Filippo. And the article was included in Industrial Crops and Products in 2022.Application of 499-75-2 This article mentions the following:
The essential oils (EOs) produced by a number of Apiaceae species are well known for their insecticidal efficacy against a wide spectrum of insects, including vectors, stored product and agricultural pests. In the real world, rawly formulated EOs are scarcely effective due to their low chem. stability, limited persistence into the environment, and poor hydrophilicity. Therefore, for practical applications they need to be encapsulated using nanocarriers. In the present study, we evaluated two novel EO-based nanoemulsions (NEs) derived from Pimpinella anisum and Trachyspermun ammi, two plants with documented insecticidal effectiveness, for the management of stored product insects causing economic damages, including Tribolium castaneum, Tribolium confusum, Tenebrio molitor, Trogoderma granarium adults or larvae, and Acarus siro adults or nymphs. The NEs were prepared by a high-pressure homogenization procedure and determined according to the distribution of particle size through dynamic light scattering. Pimpinella anisum EO resulted mainly dominated by the phenylpropanoid (E)-anethole, while T. ammi EO was mainly composed of thymol, p-cymene, and γ-terpinene. Each EO-based NE was tested at two concentrations (500 and 1000 ppm) on stored wheat. We evaluated mortality values of the arthropod pests after 4 h, 8 h, and 16 h, and daily from 1 to 7 days. Complete mortality was achieved for T. castaneum larvae on wheat sprayed with 1000 ppm of 4% (weight/weight) P. anisum EO-based NE after 6 days of exposure. Similarly, the 8% (weight/weight) T. ammi EO-based NE killed 100.0% of the tested T. confusum larvae after 7 days to 1000 ppm. When A. siro adults were exposed to 1000 ppm of the 8% (weight/weight) T. ammi EO-based NE, 89.4% of the tested individuals were killed after 7 days. Binary EO-based NE combination toxicity tests were also carried out. Almost all T. molitor adults (97.8%) died after 7 days to 1000 ppm of 3% (weight/weight) T. ammi + 3% (weight/weight) P. anisum EO-based NE. The 3% (weight/weight) T. ammi + 3% (weight/weight) P. anisum EO-based NE killed 98.6% of T. granarium adults after 7 days at 1000 ppm. Overall, the tested Apiaceae EO-based NEs exhibited relevant pesticidal efficacy under short exposure intervals, therefore they could be taken into account as auxiliary management tools towards the sustainable protection of durable commodities in storages. In the experiment, the researchers used many compounds, for example, 5-Isopropyl-2-methylphenol (cas: 499-75-2Application of 499-75-2).
5-Isopropyl-2-methylphenol (cas: 499-75-2) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Application of 499-75-2
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