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EFFECT OF DIFFERENT TECHNIQUES ON THE EXTRACTION OF PHENOLIC COMPOUNDS FROM AGROINDUSTRIAL LIME (Citrus latifolia Tan.) RESIDUE
Amanda Mellissa B Oliveira
Universidade Estadual de Campinas
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Create a topicLime (Citrus latifolia Tan.) is a citrus fruit marketed worldwide. Its processing generates a large amount of waste, of which approximately 50% is represented by bagasse (endocarp and mesocarp). The extraction of bioactive compounds from waste is a strategy to recover and add value to the agro-industrial by-products. Pressurized Liquid Extraction (PLE) and Ultrasound Assisted Extraction (UAE) are emerging techniques for obtaining bioactive compounds from plant matrices. Thus, the objective of this work was to compare different extraction techniques to obtain phenolic compounds from agro-industrial lime by-product. The extraction solvent was a mixture of ethanol and water (3:1, m/m), except for Soxhlet, which used pure ethanol. PLE was carried out at 10 MPa, 60, 85, and 110 °C, for 40 minutes. In UAE, powers of 160, 480, and 792 W were used, ranging time between 2 and 10 minutes at 20 kHz. Agitation extraction (300 rpm) used the same times as UAE and temperature of 72 °C. Soxhlet extraction was carried out for 6 hours. The total phenolic content (TPC) of the extracts was determined by the Folin-Ciocalteu method. The obtained TPCs were, in mg GAE/g sample: PLE (17.65 ± 0.03), UAE (9.95 ± 0.08), Agitation (3.65 ± 0.01), and Soxhlet (2.19 ± 0.05). The highest yield in PLE (110 °C) showed that temperature significantly influenced the extraction, whereas, in UAE, cavitation increased mass transfer and, therefore, the extraction of the target compounds. In general, the TPC of extracts obtained by emerging methods was higher than those obtained by conventional methods, demonstrating the great potential of these techniques to recover bioactive compounds from plant matrices.
Rafael Fernandes Almeida
Parabéns!!
Rayanne Priscilla França de Melo
Adorei seu trabalho, Amanda! Meus parabéns!
Amanda Mellissa B Oliveira
Muito obrigada pelo elogio! :)
Manoel Adenísio
Está de parabéns!! Continue desenvolvendo pesquisa!
Amanda Mellissa B Oliveira
Muito obrigada pelo seu elogio, Manoel!
Enylson Xavier Ramalho
Ótimo trabalho e muito bem apresentado, parabéns!
Amanda Mellissa B Oliveira
Muito obrigada! :)
Dhanus Raj Kanaga Raj
Congratulations on your work! Worth watching. And the summary is neatly elobrated with a interesting title! Looking forward for your upcoming works!
Amanda Mellissa B Oliveira
Hello, Dhanus. Thank you so much for your comment!
Crislei Gonçalves Pereira
Parabéns pela apresentação, Amanda!
Amanda Mellissa B Oliveira
Olá, Crislei. Tudo bem?
Muito obrigada pelo comentário. :)
Ingrid Moraes
Parabéns pelo trabalho Amanda! Adorei seu trabalho!👏🏻👏🏻
Amanda Mellissa B Oliveira
Oi, Ingrid, muito obrigada pelo seu comentário! :)
Luciedry Matheus Souza Carvalho
Ótimo trabalho, parabéns!
Amanda Mellissa B Oliveira
Oi, Luciedry! Muito obrigada pelo seu comentário! :)
Francielle Miranda de Matos
Tente superar essa minha amiga, e falhe haha
Amanda Mellissa B Oliveira
Fraaaaaann!! Que saudade de você, menina! Tava falando isso pro Enylson ontem. hahaa
Amanda Mellissa B Oliveira
Ok, eu admito, talvez eu seja um pouco competitiva. kkkkkkkkk
Francielle Miranda de Matos
Hahaha vc trabalha enquanto eles dormem! Saudades!!!
Celma Oliveira Barbosa
Amanda, obrigada pelo feedback em meu estudo. Aproveito para te parabenizar por seu estudo e brilhante apresentação de seus achados. Sua pesquisa é interessantíssima e de grande relevância para quem trabalha nessa área, pois precisamos de estudos que comparem as técnicas de extração para otimização de resultados. Sucesso!!! E, continue sua pesquisa.
Amanda Mellissa B Oliveira
Oi, Celma. Tudo bem? Muito obrigada pelo seu comentário! Essa linha de pesquisa tem muito potencial para avançar ainda mais. No doutorado irei testar novas matérias-primas e condições. Abraços!
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Amanda Mellissa B Oliveira
Muito obrigada! :)