{"id":5479,"date":"2025-02-14T05:11:22","date_gmt":"2025-02-14T05:11:22","guid":{"rendered":"https:\/\/mindspaceconferences.com\/traditionalmedicine\/?post_type=program&p=5479"},"modified":"2025-02-14T05:13:29","modified_gmt":"2025-02-14T05:13:29","slug":"janaina-silva-de-freitas","status":"publish","type":"program","link":"https:\/\/mindspaceconferences.com\/traditionalmedicine\/program\/janaina-silva-de-freitas\/","title":{"rendered":"Jana\u00edna Silva de Freitas"},"content":{"rendered":"

Abstract<\/strong><\/p>\n

Aedes aegypti (Linnaeus, 1762) is one of the most medically important mosquitoes because it is a vector of different arboviruses in urban areas, such as dengue, chikungunya and zika. The use of synthetic topical repellent based on N,N-diethyl-3-methylbenzamide (DEET) is one of the main methods of protection against the vector. However, studies show that mosquitoes have been showing resistance to the repellent action of DEET, which demonstrates the importance of alternative topical repellents, such as those based on essential oils (EOs). Among plant species that synthesize EOs is Croton sp. In this sense, the objective was to evaluate the in vitro topical repellent activity of the EO from Croton sp leaves against Ae. aegypti. For the test, mated female mosquitoes up to ten days old were used. Firstly, we sought to estimate two effective concentrations to repel 50 and 99% of mosquitoes from concentrations of 125; 100; 75; 50 and 25 mg\/cm2 formulated in non-ionic emulsion. Each concentration was evaluated as follows: with 50 mosquitoes in the cage, five areas of 4.9 cm2 were marked on the upper part. A quantity of 0.1 g of the formulation initially containing the lowest concentration was applied to one of the markings. Subsequently, an artificial feeder containing 1 mL of blood from Capra aegagrus hircus (Linnaeus, 1758) preheated to 37 \u00b0C was placed over each concentration for three minutes (For the use of blood, the project was approved under registration 23076.058811\/2020). The evaluation criterion was the number of landings. Next, the protection time of the 99% effective repellent concentration was evaluated. The same materials described above were used for the test. However, the evaluations were as follows: After 30 minutes of applying the 99% effective concentration, the artificial feeder was placed over the concentration for three minutes. Afterwards, the feeder was removed and placed in a water bath until the next evaluation, which occurred at 30-minute intervals, until 360 minutes were completed. The evaluation criteria were landings and blood feeding. The results showed that to repel 50 and 99% of mosquitoes, the estimated concentrations were 3 and 109 mg\/cm2, respectively. The concentration of 109 mg\/cm2 offered 64.8% protection against landings in 360 minutes and 100% against blood feeding for 150 minutes. The results indicate that Croton sp leaf EO is a promising alternative topical repellent in protection against the mosquito Ae. aegypti.<\/p>\n

Biography<\/strong><\/p>\n

Prof. Janaina Freitas holds a degree in Biological Sciences (Licentiate and Bachelor\u2019s) from the State University of Para\u00edba (UEPB, 2003) and a Ph.D. in Biochemistry from the Ribeir\u00e3o Preto Medical School \u2013 University of S\u00e3o Paulo (FMRP-USP, 2008). Currently is a Full Professor at the State University of Southwest Bahia (UESB), teaching in the Chemistry, Environmental Engineering, Food Engineering, Animal Science, and Biological Sciences programs.<\/p>\n

Currently is a permanent member of the Graduate Program in Environmental Sciences (PPGCA) and serves as the Local Coordinator of the Multicenter Program in Biochemistry and Molecular Biology (PMBqBM). Her research focuses on microbial metabolism and genetics, as well as biotechnology, particularly in fermentation processes for bioproduct production. She collaborates with the Innovation and Biotechnology Laboratory (InBiotec).<\/p>\n","protected":false},"featured_media":5481,"template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_links_to":"","_links_to_target":""},"program_days":[78],"program_sessions":[58],"class_list":["post-5479","program","type-program","status-publish","has-post-thumbnail","hentry","program_days-day-1","program_sessions-speakers"],"acf":[],"yoast_head":"\nJana\u00edna Silva de Freitas | Traditional Medicine Conference | Alternative Medicine Conference | Mindspace Conferences<\/title>\n<meta name=\"description\" content=\"Prof. Janaina Freitas holds a degree in Biological Sciences (Licentiate and Bachelor\u2019s) from the State University of Para\u00edba (UEPB, 2003) and a Ph.D. in Biochemistry from the Ribeir\u00e3o Preto Medical School \u2013 University of S\u00e3o Paulo (FMRP-USP, 2008). Currently is a Full Professor at the State University of Southwest Bahia (UESB), teaching in the Chemistry, Environmental Engineering, Food Engineering, Animal Science, and Biological Sciences programs.Currently is a permanent member of the Graduate Program in Environmental Sciences (PPGCA) and serves as the Local Coordinator of the Multicenter Program in Biochemistry and Molecular Biology (PMBqBM). Her research focuses on microbial metabolism and genetics, as well as biotechnology, particularly in fermentation processes for bioproduct production. 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Currently is a Full Professor at the State University of Southwest Bahia (UESB), teaching in the Chemistry, Environmental Engineering, Food Engineering, Animal Science, and Biological Sciences programs.Currently is a permanent member of the Graduate Program in Environmental Sciences (PPGCA) and serves as the Local Coordinator of the Multicenter Program in Biochemistry and Molecular Biology (PMBqBM). Her research focuses on microbial metabolism and genetics, as well as biotechnology, particularly in fermentation processes for bioproduct production. 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Currently is a Full Professor at the State University of Southwest Bahia (UESB), teaching in the Chemistry, Environmental Engineering, Food Engineering, Animal Science, and Biological Sciences programs.Currently is a permanent member of the Graduate Program in Environmental Sciences (PPGCA) and serves as the Local Coordinator of the Multicenter Program in Biochemistry and Molecular Biology (PMBqBM). Her research focuses on microbial metabolism and genetics, as well as biotechnology, particularly in fermentation processes for bioproduct production. 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Currently is a Full Professor at the State University of Southwest Bahia (UESB), teaching in the Chemistry, Environmental Engineering, Food Engineering, Animal Science, and Biological Sciences programs.Currently is a permanent member of the Graduate Program in Environmental Sciences (PPGCA) and serves as the Local Coordinator of the Multicenter Program in Biochemistry and Molecular Biology (PMBqBM). Her research focuses on microbial metabolism and genetics, as well as biotechnology, particularly in fermentation processes for bioproduct production. 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Currently is a Full Professor at the State University of Southwest Bahia (UESB), teaching in the Chemistry, Environmental Engineering, Food Engineering, Animal Science, and Biological Sciences programs.Currently is a permanent member of the Graduate Program in Environmental Sciences (PPGCA) and serves as the Local Coordinator of the Multicenter Program in Biochemistry and Molecular Biology (PMBqBM). Her research focuses on microbial metabolism and genetics, as well as biotechnology, particularly in fermentation processes for bioproduct production. 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