Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract
Betalains are one of the most common groups of plant pigments found in nature, especially in red beetroot ( Beta vulgaris L.) which is the main commercially exploited source of betalains produced in the form of concentrates or powders. This report presents results of thermal decarboxylation studies...
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Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences
2020-02-01
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| Series: | Polish Journal of Food and Nutrition Sciences |
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| Online Access: | http://www.journalssystem.com/pjfns/Thermal-decarboxylation-of-betacyanins-in-red-beet-betalain-rich-extract,114897,0,2.html |
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| author | Agnieszka Kumorkiewicz Katarzyna Sutor Boris Nemzer Zbigniew Pietrzkowski Sławomir Wybraniec |
| author_facet | Agnieszka Kumorkiewicz Katarzyna Sutor Boris Nemzer Zbigniew Pietrzkowski Sławomir Wybraniec |
| author_sort | Agnieszka Kumorkiewicz |
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| description | Betalains are one of the most common groups of plant pigments found in nature, especially in red beetroot ( Beta vulgaris L.) which is the main commercially exploited source of betalains produced in the form of concentrates or powders. This report presents results of thermal decarboxylation studies on betacyanins present in a specifically purified highly concentrated betalain-rich extract (BRE). The first tentative structures formed by decarboxylation of the main pigment present in BRE, betanin and its diastereomer, were established by means of liquid chromatography coupled to diode array detection and electrospray ionization tandem mass spectrometry (LC-DAD-ESI-MS/MS). In the extract, two new isomeric bidecarboxylated betanins were tentatively identified. A high rate of generation of 2-decarboxy-betanin/-isobetanin which are present in the BRE extract at very low level was observed, which was dependent on the starting concentration of the BRE substrate. The bidecarboxylated derivatives were generated at a higher rate mostly from 17-decarboxy-betanin/-isobetanin as well as 15-decarboxy-betanin by further decarboxylation at carbon C-2. Further studies will be performed to demonstrate if the decarboxylated betanins being products of heating B. vulgaris preparations can be used for various food applications with new health-promoting actions and colorant properties. |
| format | Article |
| id | doaj-art-134d781dd6e447ac82ebe8ccf39966bf |
| institution | Kabale University |
| issn | 2083-6007 |
| language | English |
| publishDate | 2020-02-01 |
| publisher | Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences |
| record_format | Article |
| series | Polish Journal of Food and Nutrition Sciences |
| spelling | doaj-art-134d781dd6e447ac82ebe8ccf39966bf2025-02-02T14:48:32ZengInstitute of Animal Reproduction and Food Research of the Polish Academy of SciencesPolish Journal of Food and Nutrition Sciences2083-60072020-02-0170171410.31883/pjfns/114897114897Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich ExtractAgnieszka Kumorkiewicz0Katarzyna Sutor1Boris Nemzer2Zbigniew Pietrzkowski3Sławomir Wybraniec4Department of Analytical Chemistry, Institute C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, Cracow 31-155, PolandDepartment of Analytical Chemistry, Institute C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, Cracow 31-155, PolandChemistry Research, VDF FutureCeuticals, Inc. Momence, IL 60954, USA; Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana IL 61801, USAABC Clinical Research, FutureCeuticals, Inc., 23 Peter Canyon Rd, Irvine, CA 92606, USADepartment of Analytical Chemistry, Institute C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, Cracow 31-155, PolandBetalains are one of the most common groups of plant pigments found in nature, especially in red beetroot ( Beta vulgaris L.) which is the main commercially exploited source of betalains produced in the form of concentrates or powders. This report presents results of thermal decarboxylation studies on betacyanins present in a specifically purified highly concentrated betalain-rich extract (BRE). The first tentative structures formed by decarboxylation of the main pigment present in BRE, betanin and its diastereomer, were established by means of liquid chromatography coupled to diode array detection and electrospray ionization tandem mass spectrometry (LC-DAD-ESI-MS/MS). In the extract, two new isomeric bidecarboxylated betanins were tentatively identified. A high rate of generation of 2-decarboxy-betanin/-isobetanin which are present in the BRE extract at very low level was observed, which was dependent on the starting concentration of the BRE substrate. The bidecarboxylated derivatives were generated at a higher rate mostly from 17-decarboxy-betanin/-isobetanin as well as 15-decarboxy-betanin by further decarboxylation at carbon C-2. Further studies will be performed to demonstrate if the decarboxylated betanins being products of heating B. vulgaris preparations can be used for various food applications with new health-promoting actions and colorant properties.http://www.journalssystem.com/pjfns/Thermal-decarboxylation-of-betacyanins-in-red-beet-betalain-rich-extract,114897,0,2.htmldecarboxylationred beet rootcolorantsbetaninbetalain-rich extractdecarboxy-betacyanins |
| spellingShingle | Agnieszka Kumorkiewicz Katarzyna Sutor Boris Nemzer Zbigniew Pietrzkowski Sławomir Wybraniec Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract Polish Journal of Food and Nutrition Sciences decarboxylation red beet root colorants betanin betalain-rich extract decarboxy-betacyanins |
| title | Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract |
| title_full | Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract |
| title_fullStr | Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract |
| title_full_unstemmed | Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract |
| title_short | Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract |
| title_sort | thermal decarboxylation of betacyanins in red beet betalain rich extract |
| topic | decarboxylation red beet root colorants betanin betalain-rich extract decarboxy-betacyanins |
| url | http://www.journalssystem.com/pjfns/Thermal-decarboxylation-of-betacyanins-in-red-beet-betalain-rich-extract,114897,0,2.html |
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