Comparative elucidation on the phenolic fingerprint, sugars and antioxidant activity of white, orange and purple-fleshed sweet potatoes (Ipomoea batatas L.) as affected by different cooking methods

In this study, three cooking methods (baking, boiling, sous vide (SV)) were applied to Turkish sweet potatoes with three flesh colors (white, orange, purple) to examine the effects of the product color and cooking methods on the total phenolics, antioxidant activity, sugars, phenolic acids, and anth...

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Main Authors: Gamze Guclu, Mumine Melike Dagli, Ozge Aksay, Muharrem Keskin, Hasim Kelebek, Serkan Selli
Format: Article
Language:English
Published: Elsevier 2023-08-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844023058929
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author Gamze Guclu
Mumine Melike Dagli
Ozge Aksay
Muharrem Keskin
Hasim Kelebek
Serkan Selli
author_facet Gamze Guclu
Mumine Melike Dagli
Ozge Aksay
Muharrem Keskin
Hasim Kelebek
Serkan Selli
author_sort Gamze Guclu
collection DOAJ
description In this study, three cooking methods (baking, boiling, sous vide (SV)) were applied to Turkish sweet potatoes with three flesh colors (white, orange, purple) to examine the effects of the product color and cooking methods on the total phenolics, antioxidant activity, sugars, phenolic acids, and anthocyanins. LC-MS-MS was employed in the characterization of these compounds. It was observed that the product color and cooking method significantly affected the concentrations of bioactive compounds like polyphenols. Both the highest total phenolic content (11.36 mg/g) and antioxidant activity (DPPH (50.3 μM TE/g) and ABTS (63.53 μM TE/g)) were determined in the purple sweet potato cooked with the SV method. 10 phenolic acids were quantified in all samples which were in the highest amounts in the orange colored samples followed by the purple samples. Baking resulted in the highest total phenolic acids in all samples. 13 anthocyanins were detected in the purple-colored samples, while the SV cooking best preserved the anthocyanins. In sum, purple sweet potatoes cooked by SV are recommended for higher phenolic contents, antioxidant capacity and anthocyanins.
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spelling doaj.art-7cdbc0a8ab3941559c099944e059e64d2023-08-30T05:52:12ZengElsevierHeliyon2405-84402023-08-0198e18684Comparative elucidation on the phenolic fingerprint, sugars and antioxidant activity of white, orange and purple-fleshed sweet potatoes (Ipomoea batatas L.) as affected by different cooking methodsGamze Guclu0Mumine Melike Dagli1 Ozge Aksay2Muharrem Keskin3Hasim Kelebek4Serkan Selli5Department of Food Engineering, Faculty of Engineering, Cukurova University, 01330, Adana, TürkiyeDepartment of Food Engineering, Faculty of Engineering, Cukurova University, 01330, Adana, TürkiyeDepartment of Food Engineering, Faculty of Engineering, Adana Alparslan Turkes Science and Technology University, 01250, Adana, TürkiyeDepartment of Biosystems Engineering, Faculty of Agriculture, Hatay Mustafa Kemal University, 31040, Antakya, Hatay, TürkiyeDepartment of Food Engineering, Faculty of Engineering, Adana Alparslan Turkes Science and Technology University, 01250, Adana, Türkiye; Corresponding author.Department of Food Engineering, Faculty of Engineering, Cukurova University, 01330, Adana, Türkiye; Corresponding author.In this study, three cooking methods (baking, boiling, sous vide (SV)) were applied to Turkish sweet potatoes with three flesh colors (white, orange, purple) to examine the effects of the product color and cooking methods on the total phenolics, antioxidant activity, sugars, phenolic acids, and anthocyanins. LC-MS-MS was employed in the characterization of these compounds. It was observed that the product color and cooking method significantly affected the concentrations of bioactive compounds like polyphenols. Both the highest total phenolic content (11.36 mg/g) and antioxidant activity (DPPH (50.3 μM TE/g) and ABTS (63.53 μM TE/g)) were determined in the purple sweet potato cooked with the SV method. 10 phenolic acids were quantified in all samples which were in the highest amounts in the orange colored samples followed by the purple samples. Baking resulted in the highest total phenolic acids in all samples. 13 anthocyanins were detected in the purple-colored samples, while the SV cooking best preserved the anthocyanins. In sum, purple sweet potatoes cooked by SV are recommended for higher phenolic contents, antioxidant capacity and anthocyanins.http://www.sciencedirect.com/science/article/pii/S2405844023058929Sweet potatoIpomoea batatas L.PhenolicsAntioxidant capacityAnthocyanins
spellingShingle Gamze Guclu
Mumine Melike Dagli
Ozge Aksay
Muharrem Keskin
Hasim Kelebek
Serkan Selli
Comparative elucidation on the phenolic fingerprint, sugars and antioxidant activity of white, orange and purple-fleshed sweet potatoes (Ipomoea batatas L.) as affected by different cooking methods
Heliyon
Sweet potato
Ipomoea batatas L.
Phenolics
Antioxidant capacity
Anthocyanins
title Comparative elucidation on the phenolic fingerprint, sugars and antioxidant activity of white, orange and purple-fleshed sweet potatoes (Ipomoea batatas L.) as affected by different cooking methods
title_full Comparative elucidation on the phenolic fingerprint, sugars and antioxidant activity of white, orange and purple-fleshed sweet potatoes (Ipomoea batatas L.) as affected by different cooking methods
title_fullStr Comparative elucidation on the phenolic fingerprint, sugars and antioxidant activity of white, orange and purple-fleshed sweet potatoes (Ipomoea batatas L.) as affected by different cooking methods
title_full_unstemmed Comparative elucidation on the phenolic fingerprint, sugars and antioxidant activity of white, orange and purple-fleshed sweet potatoes (Ipomoea batatas L.) as affected by different cooking methods
title_short Comparative elucidation on the phenolic fingerprint, sugars and antioxidant activity of white, orange and purple-fleshed sweet potatoes (Ipomoea batatas L.) as affected by different cooking methods
title_sort comparative elucidation on the phenolic fingerprint sugars and antioxidant activity of white orange and purple fleshed sweet potatoes ipomoea batatas l as affected by different cooking methods
topic Sweet potato
Ipomoea batatas L.
Phenolics
Antioxidant capacity
Anthocyanins
url http://www.sciencedirect.com/science/article/pii/S2405844023058929
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