Characterization of Thermal Properties of Ruby Chocolate Using DSC, PDSC and TGA Methods

Barely explored in the prior literature, ruby chocolate was investigated in this study to explore its thermal properties. The fatty acid composition of ruby chocolate (RC) fat was determined using gas chromatography. Differential scanning calorimetry (DSC) was successfully used to determine the melt...

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Main Authors: Ewa Ostrowska-Ligęza, Karolina Dolatowska-Żebrowska, Rita Brzezińska, Magdalena Wirkowska-Wojdyła, Joanna Bryś, Iga Piasecka, Agata Górska
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/9/5221
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author Ewa Ostrowska-Ligęza
Karolina Dolatowska-Żebrowska
Rita Brzezińska
Magdalena Wirkowska-Wojdyła
Joanna Bryś
Iga Piasecka
Agata Górska
author_facet Ewa Ostrowska-Ligęza
Karolina Dolatowska-Żebrowska
Rita Brzezińska
Magdalena Wirkowska-Wojdyła
Joanna Bryś
Iga Piasecka
Agata Górska
author_sort Ewa Ostrowska-Ligęza
collection DOAJ
description Barely explored in the prior literature, ruby chocolate was investigated in this study to explore its thermal properties. The fatty acid composition of ruby chocolate (RC) fat was determined using gas chromatography. Differential scanning calorimetry (DSC) was successfully used to determine the melting behavior and polymorphic forms of the cocoa fat and milk fat present in the RC. The oxidative stability of the fat extracted from the RC was studied with the use of pressurized differential scanning calorimetry (PDSC). The thermal behavior of the chocolate and the fat were investigated using thermogravimetry (TGA). The thermal profile and characteristics of the RC showed how the parameters compared with those of dark and milk chocolate. The melting temperature of the RC obtained by DSC was more similar to that of milk chocolate than to that of dark chocolate. Regression analysis of the PDSC data for the fat extracted from the RC was characterized by very high correlation coefficients (>0.99). It was noticed there was no statistically significant difference between the values of the activation energy (E<sub>a</sub>) of the oxidation process for the fat extracted from the RC, obtained by the means of maximum temperature (dynamic mode) and maximum induction time (isothermal mode).
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spelling doaj.art-4c882f14b7374ca4a644e0e7358bfd892023-11-17T22:31:01ZengMDPI AGApplied Sciences2076-34172023-04-01139522110.3390/app13095221Characterization of Thermal Properties of Ruby Chocolate Using DSC, PDSC and TGA MethodsEwa Ostrowska-Ligęza0Karolina Dolatowska-Żebrowska1Rita Brzezińska2Magdalena Wirkowska-Wojdyła3Joanna Bryś4Iga Piasecka5Agata Górska6Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska Street, 02-776 Warsaw, PolandDepartment of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska Street, 02-776 Warsaw, PolandDepartment of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska Street, 02-776 Warsaw, PolandDepartment of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska Street, 02-776 Warsaw, PolandDepartment of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska Street, 02-776 Warsaw, PolandDepartment of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska Street, 02-776 Warsaw, PolandDepartment of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska Street, 02-776 Warsaw, PolandBarely explored in the prior literature, ruby chocolate was investigated in this study to explore its thermal properties. The fatty acid composition of ruby chocolate (RC) fat was determined using gas chromatography. Differential scanning calorimetry (DSC) was successfully used to determine the melting behavior and polymorphic forms of the cocoa fat and milk fat present in the RC. The oxidative stability of the fat extracted from the RC was studied with the use of pressurized differential scanning calorimetry (PDSC). The thermal behavior of the chocolate and the fat were investigated using thermogravimetry (TGA). The thermal profile and characteristics of the RC showed how the parameters compared with those of dark and milk chocolate. The melting temperature of the RC obtained by DSC was more similar to that of milk chocolate than to that of dark chocolate. Regression analysis of the PDSC data for the fat extracted from the RC was characterized by very high correlation coefficients (>0.99). It was noticed there was no statistically significant difference between the values of the activation energy (E<sub>a</sub>) of the oxidation process for the fat extracted from the RC, obtained by the means of maximum temperature (dynamic mode) and maximum induction time (isothermal mode).https://www.mdpi.com/2076-3417/13/9/5221ruby chocolatedifferential scanning calorimetrythermogravimetrypressurized differential scanning calorimetry
spellingShingle Ewa Ostrowska-Ligęza
Karolina Dolatowska-Żebrowska
Rita Brzezińska
Magdalena Wirkowska-Wojdyła
Joanna Bryś
Iga Piasecka
Agata Górska
Characterization of Thermal Properties of Ruby Chocolate Using DSC, PDSC and TGA Methods
Applied Sciences
ruby chocolate
differential scanning calorimetry
thermogravimetry
pressurized differential scanning calorimetry
title Characterization of Thermal Properties of Ruby Chocolate Using DSC, PDSC and TGA Methods
title_full Characterization of Thermal Properties of Ruby Chocolate Using DSC, PDSC and TGA Methods
title_fullStr Characterization of Thermal Properties of Ruby Chocolate Using DSC, PDSC and TGA Methods
title_full_unstemmed Characterization of Thermal Properties of Ruby Chocolate Using DSC, PDSC and TGA Methods
title_short Characterization of Thermal Properties of Ruby Chocolate Using DSC, PDSC and TGA Methods
title_sort characterization of thermal properties of ruby chocolate using dsc pdsc and tga methods
topic ruby chocolate
differential scanning calorimetry
thermogravimetry
pressurized differential scanning calorimetry
url https://www.mdpi.com/2076-3417/13/9/5221
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AT ritabrzezinska characterizationofthermalpropertiesofrubychocolateusingdscpdscandtgamethods
AT magdalenawirkowskawojdyła characterizationofthermalpropertiesofrubychocolateusingdscpdscandtgamethods
AT joannabrys characterizationofthermalpropertiesofrubychocolateusingdscpdscandtgamethods
AT igapiasecka characterizationofthermalpropertiesofrubychocolateusingdscpdscandtgamethods
AT agatagorska characterizationofthermalpropertiesofrubychocolateusingdscpdscandtgamethods