Attempts to Create Products with Increased Health-Promoting Potential Starting with Pinot Noir Pomace: Investigations on the Process and Its Methods

A process for using grape (Pinot noir) pomace to produce products with improved health-promoting effects was investigated. This process integrated a solid–liquid extraction (SLE) method and a method to acylate the polyphenolics in the extract. This report describes and discusses the methods used, in...

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Main Authors: Stephen Lo, Lisa I. Pilkington, David Barker, Bruno Fedrizzi
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/11/14/1999
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author Stephen Lo
Lisa I. Pilkington
David Barker
Bruno Fedrizzi
author_facet Stephen Lo
Lisa I. Pilkington
David Barker
Bruno Fedrizzi
author_sort Stephen Lo
collection DOAJ
description A process for using grape (Pinot noir) pomace to produce products with improved health-promoting effects was investigated. This process integrated a solid–liquid extraction (SLE) method and a method to acylate the polyphenolics in the extract. This report describes and discusses the methods used, including the rationale and considerations behind them, and the results obtained. The study begins with the work to optimize the SLE method for extracting higher quantities of (+)-catechin, (−)-epicatechin and quercetin by trialing 28 different solvent systems on small-scale samples of Pinot noir pomace. One of these systems was then selected and used for the extraction of the same flavonoids on a large-scale mass of pomace. It was found that significantly fewer quantities of flavonoids were observed. The resultant extract was then subject to a method of derivatization using three different fatty acylating agents. The antiproliferative activities of these products were measured; however, the resulting products did not display activity against the chosen cancer cells. Limitations and improvements to the methods in this process are also discussed.
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spelling doaj.art-0fe9c819d0c347e89a0c3b29a74211312023-12-03T15:02:20ZengMDPI AGFoods2304-81582022-07-011114199910.3390/foods11141999Attempts to Create Products with Increased Health-Promoting Potential Starting with Pinot Noir Pomace: Investigations on the Process and Its MethodsStephen Lo0Lisa I. Pilkington1David Barker2Bruno Fedrizzi3School of Chemical Sciences, University of Auckland, 23 Symonds St, Auckland 1010, New ZealandSchool of Chemical Sciences, University of Auckland, 23 Symonds St, Auckland 1010, New ZealandSchool of Chemical Sciences, University of Auckland, 23 Symonds St, Auckland 1010, New ZealandSchool of Chemical Sciences, University of Auckland, 23 Symonds St, Auckland 1010, New ZealandA process for using grape (Pinot noir) pomace to produce products with improved health-promoting effects was investigated. This process integrated a solid–liquid extraction (SLE) method and a method to acylate the polyphenolics in the extract. This report describes and discusses the methods used, including the rationale and considerations behind them, and the results obtained. The study begins with the work to optimize the SLE method for extracting higher quantities of (+)-catechin, (−)-epicatechin and quercetin by trialing 28 different solvent systems on small-scale samples of Pinot noir pomace. One of these systems was then selected and used for the extraction of the same flavonoids on a large-scale mass of pomace. It was found that significantly fewer quantities of flavonoids were observed. The resultant extract was then subject to a method of derivatization using three different fatty acylating agents. The antiproliferative activities of these products were measured; however, the resulting products did not display activity against the chosen cancer cells. Limitations and improvements to the methods in this process are also discussed.https://www.mdpi.com/2304-8158/11/14/1999Pinot noir pomacesolid–liquid extractionvalorizationflavonoidsfatty acidsderivatization
spellingShingle Stephen Lo
Lisa I. Pilkington
David Barker
Bruno Fedrizzi
Attempts to Create Products with Increased Health-Promoting Potential Starting with Pinot Noir Pomace: Investigations on the Process and Its Methods
Foods
Pinot noir pomace
solid–liquid extraction
valorization
flavonoids
fatty acids
derivatization
title Attempts to Create Products with Increased Health-Promoting Potential Starting with Pinot Noir Pomace: Investigations on the Process and Its Methods
title_full Attempts to Create Products with Increased Health-Promoting Potential Starting with Pinot Noir Pomace: Investigations on the Process and Its Methods
title_fullStr Attempts to Create Products with Increased Health-Promoting Potential Starting with Pinot Noir Pomace: Investigations on the Process and Its Methods
title_full_unstemmed Attempts to Create Products with Increased Health-Promoting Potential Starting with Pinot Noir Pomace: Investigations on the Process and Its Methods
title_short Attempts to Create Products with Increased Health-Promoting Potential Starting with Pinot Noir Pomace: Investigations on the Process and Its Methods
title_sort attempts to create products with increased health promoting potential starting with pinot noir pomace investigations on the process and its methods
topic Pinot noir pomace
solid–liquid extraction
valorization
flavonoids
fatty acids
derivatization
url https://www.mdpi.com/2304-8158/11/14/1999
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AT davidbarker attemptstocreateproductswithincreasedhealthpromotingpotentialstartingwithpinotnoirpomaceinvestigationsontheprocessanditsmethods
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