Influence of Heat Treatments on the Content of Bioactive Substances and Antioxidant Properties of Sweet Potato (Ipomoea batatas L.) Tubers

Heat treatment can affect the bioactive compounds in sweet potato (SP). In this work, we monitored the influence of heat treatment (boiling, steaming, microwaving, and baking) on the total polyphenols content (TPC), total antioxidant capacity (TAC), total anthocyanins content (TANTC), and phenolics...

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Main Authors: Janette Musilova, Judita Lidikova, Alena Vollmannova, Hana Frankova, Dana Urminska, Tatiana Bojnanska, Tomas Toth
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Journal of Food Quality
Online Access:http://dx.doi.org/10.1155/2020/8856260
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author Janette Musilova
Judita Lidikova
Alena Vollmannova
Hana Frankova
Dana Urminska
Tatiana Bojnanska
Tomas Toth
author_facet Janette Musilova
Judita Lidikova
Alena Vollmannova
Hana Frankova
Dana Urminska
Tatiana Bojnanska
Tomas Toth
author_sort Janette Musilova
collection DOAJ
description Heat treatment can affect the bioactive compounds in sweet potato (SP). In this work, we monitored the influence of heat treatment (boiling, steaming, microwaving, and baking) on the total polyphenols content (TPC), total antioxidant capacity (TAC), total anthocyanins content (TANTC), and phenolics acids (chlorogenic (CGA), neochlorogenic (neo-CGA), and trans-ferulic (tFA)) in two SP varieties grown in Slovakia and Croatia. TPC, TAC, and TANT were determined spectrophotometrically and phenolic acids by HPLC. TPC ranged from 576 (Beauregard, Croatia; Be/HR) to 3828 (414-purple, Slovakia; Pu/SK) mg/kg DW in the raw SP tubers. After heat treatment, TPC increased, most in steamed SP (8438 mg GAE/kg DW; Pu/SK), while only in boiled SP (Be/HR), TPC decreased (353 mg GAE/kg DW). TAC varied from 0.848 (Be/HR) to 8.67 (Pu/HR) (μmol TE/g DW) in raw SP. The TAC increased by heat treatment (max. 14.2 μmol TE/g DW; cooking Be/SK), except for Pu/HR. The TANT ranged from 151 (raw Pu/SK) to 1276 (microwaved Pu/SK) mg CyE/kg FW. Heat treatment had a negative effect on phenolic acid content; the largest reduction was after boiling: CGA by 29% (Pu/SK), neo-CGA by 69% (Pu/HR), and tFA by 29% (Be/HR). The influence of heat treatment on the monitored quantities is not definite.
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institution Kabale University
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spelling doaj-art-84aedef8d0c84e49b27e1a7c9669239a2025-08-20T03:37:12ZengWileyJournal of Food Quality0146-94281745-45572020-01-01202010.1155/2020/88562608856260Influence of Heat Treatments on the Content of Bioactive Substances and Antioxidant Properties of Sweet Potato (Ipomoea batatas L.) TubersJanette Musilova0Judita Lidikova1Alena Vollmannova2Hana Frankova3Dana Urminska4Tatiana Bojnanska5Tomas Toth6Department of Chemistry, Faculty of Biotechnology and Food Sciences, SUA Nitra, Tr. A. Hlinku 2, 949 76 Nitra, SlovakiaDepartment of Chemistry, Faculty of Biotechnology and Food Sciences, SUA Nitra, Tr. A. Hlinku 2, 949 76 Nitra, SlovakiaDepartment of Chemistry, Faculty of Biotechnology and Food Sciences, SUA Nitra, Tr. A. Hlinku 2, 949 76 Nitra, SlovakiaDepartment of Chemistry, Faculty of Biotechnology and Food Sciences, SUA Nitra, Tr. A. Hlinku 2, 949 76 Nitra, SlovakiaDepartment of Biochemistry and Biotechnology, Faculty of Biotechnology and Food Sciences, SUA Nitra, Tr. A. Hlinku 2, 949 76 Nitra, SlovakiaDepartment of Technology and Quality of Plant Products, Faculty of Biotechnology and Food Sciences, SUA Nitra, Tr. A. Hlinku 2, 949 76 Nitra, SlovakiaDepartment of Chemistry, Faculty of Biotechnology and Food Sciences, SUA Nitra, Tr. A. Hlinku 2, 949 76 Nitra, SlovakiaHeat treatment can affect the bioactive compounds in sweet potato (SP). In this work, we monitored the influence of heat treatment (boiling, steaming, microwaving, and baking) on the total polyphenols content (TPC), total antioxidant capacity (TAC), total anthocyanins content (TANTC), and phenolics acids (chlorogenic (CGA), neochlorogenic (neo-CGA), and trans-ferulic (tFA)) in two SP varieties grown in Slovakia and Croatia. TPC, TAC, and TANT were determined spectrophotometrically and phenolic acids by HPLC. TPC ranged from 576 (Beauregard, Croatia; Be/HR) to 3828 (414-purple, Slovakia; Pu/SK) mg/kg DW in the raw SP tubers. After heat treatment, TPC increased, most in steamed SP (8438 mg GAE/kg DW; Pu/SK), while only in boiled SP (Be/HR), TPC decreased (353 mg GAE/kg DW). TAC varied from 0.848 (Be/HR) to 8.67 (Pu/HR) (μmol TE/g DW) in raw SP. The TAC increased by heat treatment (max. 14.2 μmol TE/g DW; cooking Be/SK), except for Pu/HR. The TANT ranged from 151 (raw Pu/SK) to 1276 (microwaved Pu/SK) mg CyE/kg FW. Heat treatment had a negative effect on phenolic acid content; the largest reduction was after boiling: CGA by 29% (Pu/SK), neo-CGA by 69% (Pu/HR), and tFA by 29% (Be/HR). The influence of heat treatment on the monitored quantities is not definite.http://dx.doi.org/10.1155/2020/8856260
spellingShingle Janette Musilova
Judita Lidikova
Alena Vollmannova
Hana Frankova
Dana Urminska
Tatiana Bojnanska
Tomas Toth
Influence of Heat Treatments on the Content of Bioactive Substances and Antioxidant Properties of Sweet Potato (Ipomoea batatas L.) Tubers
Journal of Food Quality
title Influence of Heat Treatments on the Content of Bioactive Substances and Antioxidant Properties of Sweet Potato (Ipomoea batatas L.) Tubers
title_full Influence of Heat Treatments on the Content of Bioactive Substances and Antioxidant Properties of Sweet Potato (Ipomoea batatas L.) Tubers
title_fullStr Influence of Heat Treatments on the Content of Bioactive Substances and Antioxidant Properties of Sweet Potato (Ipomoea batatas L.) Tubers
title_full_unstemmed Influence of Heat Treatments on the Content of Bioactive Substances and Antioxidant Properties of Sweet Potato (Ipomoea batatas L.) Tubers
title_short Influence of Heat Treatments on the Content of Bioactive Substances and Antioxidant Properties of Sweet Potato (Ipomoea batatas L.) Tubers
title_sort influence of heat treatments on the content of bioactive substances and antioxidant properties of sweet potato ipomoea batatas l tubers
url http://dx.doi.org/10.1155/2020/8856260
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