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Inicio  /  Acta Scientiarum: Technology  /  Vol: 40 Par: 0 (2018)  /  Artículo
ARTÍCULO
TITULO

The effects of ultrasound-assisted extraction on polyphenolics compounds obtained from Physalis angulata using response surface approach

Naira Carniel    
Rogério Marcos Dallago    
Denise Bilibio    
Anderson Luiz Nunes    
João Paulo Bender    
Wagner Luiz Priamo    

Resumen

 Total polyphenols content (TPC), including flavonoids (rutin, mangiferin and kaempferol) and phenolic acids (gallic, caffeic and ellagic acid) from Physalis angulata were recovered by Ultrasound-Assisted Extraction and quantified by UV?vis and HPLC analysis. Process parameters were assessed through a Central Composite Rotatable Design (CCRD) and a model with regression coefficient equal to 0.9640, was used to establish the optimum conditions together with its respective response surfaces. The increase of ethanol percentage and solid-liquid ratio promoted a decrease on TPC but, on the other hand, the increase in the temperature led to an increase in the extraction of these compounds. Experimental results indicated a maximum amount of total polyphenols of 1.039 mg Gallic Acid Eqivalent (GAE) g-1 of extract, 104.88, 4.04, 8.37, 58.28, 13.26 and 1.87mg.L-1 for gallic acid, caffeic acid, ellagic acid, rutin, mangiferin and kaempferol, respectively. 

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