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Optimization of Microwave-Assisted Extraction of Antioxidants from Bamboo Shoots of Phyllostachys pubescens

Bamboo is a well-known medicinal plant in Southeast Asia that recently has attracted attention for its high polyphenol content and its medical and nutraceutical applications. In this work, polyphenols have been recovered for the first time by microwave-assisted extraction (MAE) from an unusual Itali...

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Autores principales: Milani, Gualtiero, Curci, Francesca, Cavalluzzi, Maria Maddalena, Crupi, Pasquale, Pisano, Isabella, Lentini, Giovanni, Clodoveo, Maria Lisa, Franchini, Carlo, Corbo, Filomena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6982868/
https://www.ncbi.nlm.nih.gov/pubmed/31948097
http://dx.doi.org/10.3390/molecules25010215
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author Milani, Gualtiero
Curci, Francesca
Cavalluzzi, Maria Maddalena
Crupi, Pasquale
Pisano, Isabella
Lentini, Giovanni
Clodoveo, Maria Lisa
Franchini, Carlo
Corbo, Filomena
author_facet Milani, Gualtiero
Curci, Francesca
Cavalluzzi, Maria Maddalena
Crupi, Pasquale
Pisano, Isabella
Lentini, Giovanni
Clodoveo, Maria Lisa
Franchini, Carlo
Corbo, Filomena
author_sort Milani, Gualtiero
collection PubMed
description Bamboo is a well-known medicinal plant in Southeast Asia that recently has attracted attention for its high polyphenol content and its medical and nutraceutical applications. In this work, polyphenols have been recovered for the first time by microwave-assisted extraction (MAE) from an unusual Italian cultivar of Phyllostachys pubescens bamboo shoots. The effects of three independent variables, such as extraction time, temperature, and solid/liquid ratio, on polyphenol recovery yield were investigated and successfully optimized through the response surface methodology. We demonstrated that MAE is an excellent polyphenols extraction technique from bamboo shoots because the total phenolic content obtained under microwave irradiation optimal conditions (4 min at 105 °C with 6.25 mg/mL ratio) was about eight-fold higher than that obtained with the conventional extraction method. Furthermore, higher total flavonoid content was also obtained under MAE. Consistent with these results, MAE enhanced the extract antioxidant properties with significant improved DPPH, ABTS, and FRAP scavenging ability. Therefore, this innovative extraction process enhances the recovery of biologically active compounds from Phyllostachys pubescens bamboo shoots with a dramatic reduction of time and energy consumption, which paves the way for its industrial application in functional food production.
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spelling pubmed-69828682020-02-06 Optimization of Microwave-Assisted Extraction of Antioxidants from Bamboo Shoots of Phyllostachys pubescens Milani, Gualtiero Curci, Francesca Cavalluzzi, Maria Maddalena Crupi, Pasquale Pisano, Isabella Lentini, Giovanni Clodoveo, Maria Lisa Franchini, Carlo Corbo, Filomena Molecules Article Bamboo is a well-known medicinal plant in Southeast Asia that recently has attracted attention for its high polyphenol content and its medical and nutraceutical applications. In this work, polyphenols have been recovered for the first time by microwave-assisted extraction (MAE) from an unusual Italian cultivar of Phyllostachys pubescens bamboo shoots. The effects of three independent variables, such as extraction time, temperature, and solid/liquid ratio, on polyphenol recovery yield were investigated and successfully optimized through the response surface methodology. We demonstrated that MAE is an excellent polyphenols extraction technique from bamboo shoots because the total phenolic content obtained under microwave irradiation optimal conditions (4 min at 105 °C with 6.25 mg/mL ratio) was about eight-fold higher than that obtained with the conventional extraction method. Furthermore, higher total flavonoid content was also obtained under MAE. Consistent with these results, MAE enhanced the extract antioxidant properties with significant improved DPPH, ABTS, and FRAP scavenging ability. Therefore, this innovative extraction process enhances the recovery of biologically active compounds from Phyllostachys pubescens bamboo shoots with a dramatic reduction of time and energy consumption, which paves the way for its industrial application in functional food production. MDPI 2020-01-05 /pmc/articles/PMC6982868/ /pubmed/31948097 http://dx.doi.org/10.3390/molecules25010215 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Milani, Gualtiero
Curci, Francesca
Cavalluzzi, Maria Maddalena
Crupi, Pasquale
Pisano, Isabella
Lentini, Giovanni
Clodoveo, Maria Lisa
Franchini, Carlo
Corbo, Filomena
Optimization of Microwave-Assisted Extraction of Antioxidants from Bamboo Shoots of Phyllostachys pubescens
title Optimization of Microwave-Assisted Extraction of Antioxidants from Bamboo Shoots of Phyllostachys pubescens
title_full Optimization of Microwave-Assisted Extraction of Antioxidants from Bamboo Shoots of Phyllostachys pubescens
title_fullStr Optimization of Microwave-Assisted Extraction of Antioxidants from Bamboo Shoots of Phyllostachys pubescens
title_full_unstemmed Optimization of Microwave-Assisted Extraction of Antioxidants from Bamboo Shoots of Phyllostachys pubescens
title_short Optimization of Microwave-Assisted Extraction of Antioxidants from Bamboo Shoots of Phyllostachys pubescens
title_sort optimization of microwave-assisted extraction of antioxidants from bamboo shoots of phyllostachys pubescens
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6982868/
https://www.ncbi.nlm.nih.gov/pubmed/31948097
http://dx.doi.org/10.3390/molecules25010215
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