The effect of ultrasound on improving the extraction of tannins from the Stryphnodendron adstringens bark

Ribeiro, Maurício M. de Souza; Viganó, Juliane; Novais, Nathália Stahl de; Mesquita, Leonardo M. de Souza; Kamikawachi, Renan Canute; Vilegas, Wagner; Lopes, Patrícia S.; Silva, Camila Soares da; Rostagno, Maurı́cio A.; Veggi, Priscilla C.

doi:10.1016/j.scp.2023.101044

Cited by 6 publications

(4 citation statements)

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“…On one hand, in several cases, the ultrasound (US)-assisted technique is used for the extraction of polyphenols and tannins. [15][16][17][18] In this technique, application of mechanical waves at high frequency generates different processes as mechanical agitation, heating, shock waves, and cavitation in the liquid medium and cells, increasing the contact with the solvent and inducing changes in the structure of the plant cell structures. [15,18] Some of the advantages of the use of US are the enhancement of the extraction yield and the reduction of the extraction time.…”

Section: Introductionmentioning

confidence: 99%

“…[15][16][17][18] In this technique, application of mechanical waves at high frequency generates different processes as mechanical agitation, heating, shock waves, and cavitation in the liquid medium and cells, increasing the contact with the solvent and inducing changes in the structure of the plant cell structures. [15,18] Some of the advantages of the use of US are the enhancement of the extraction yield and the reduction of the extraction time. [18] A collection of methods known as response surface methodology (RSM) are employed in empirical research to examine the relationship between a response and several input variables.…”

Section: Introductionmentioning

confidence: 99%

“…[15,18] Some of the advantages of the use of US are the enhancement of the extraction yield and the reduction of the extraction time. [18] A collection of methods known as response surface methodology (RSM) are employed in empirical research to examine the relationship between a response and several input variables. [19] RSM-based methodologies are useful when there are limitations with the number of essays or consumables and have some advantages as higher predicting accuracy and being cheaper and simpler than traditional analysis methodologies.…”

Section: Introductionmentioning

confidence: 99%

“…[ 15,18 ] Some of the advantages of the use of US are the enhancement of the extraction yield and the reduction of the extraction time. [ 18 ]…”

Section: Introductionmentioning

confidence: 99%

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Response surface methodology for the green obtention of polyphenols from yerba mate

Arencibia,

Gomez‐Osuna,

Arencibia

et al. 2024

Can J Chem Eng

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Optimal conditions for polyphenols extraction from plants are moderate conditions and being water‐based is mandatory. In this work, a response surface methodology (RSM) was used to attain optimal conditions for polyphenols extraction from yerba mate (YM, South‐America infusion) using water as solvent under ultrasound (US). The following parameters were varied: mass of YM/volume of water (YM/W), pH, temperature, and time. The optimal conditions were 90°C with a YM/W of 150 g L−1 for 5 min, at which the highest total polyphenol content (TPC) concentration (11,300 mg GAE L−1) was found, together with an antioxidant activity of 132 mmol Trolox equivalent (TE) L−1 of extract. The conditions obtained from the RSM method were applied to other methods as follows: extraction without stirring, magnetic stirring assisted extraction and US with magnetic stirring assisted extraction. Results indicated that the US‐assisted extraction was the most efficient for extracting polyphenols under these conditions. This study helps to developing an eco‐friendly and cost‐effective experimental design, reducing the production of wastes, and using a very fast water‐based method.

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