Comparison of Caffeoylquinic Acids and Functional Properties of Domestic Sweet Potato (Ipomoea batatas (L.) Lam.) Storage Roots with Established Overseas Varieties
Abstract
:1. Introduction
2. Materials and Methods
2.1. Chemicals
2.2. Plant Material
2.3. Extraction
2.4. Total Phenols
2.5. Quantification of Different Phenolic Compounds
2.6. Antioxidant Properties
2.7. Statistical Analysis
3. Results and Discussion
3.1. Total Phenols
3.2. Untargeted Metabolitle Profile
3.3. Metabolomic and Chemometric Profiles
3.4. Quantified Concentrations of Phenolic Compounds
3.5. Antioxidant Properties
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Phenolic Compounds (mg kg−1) | Bophelo | Beauregard | Monate | 199062.1 | Ndou | Blesbok |
---|---|---|---|---|---|---|
Neochlorogenic acid (5-CQA) | 6.39 ± 0.23 b | 1.91 ± 0.02 c | 1.46 ± 0.43 c | 9.60 ± 0.23 a | 2.93 ± 1.14 c | 2.69 ± 0.21 c |
5-Hydroxy-6-methoxycoumarin 7-glucoside | 0.44 ± 0.07 b | 0.33 ± 0.06 b | 0.39 ± 0.16 b | 1.04 ± 0.05 a | 0.22 ± 0.07 b | 0.30 ± 0.04 b |
Chlorogenic acid (3-CQA) | 24.78 ± 0.14 b | 23.51 ± 0.50 c | 16.90 ± 0.17 e | 35.14 ± 0.45 a | 20.10 ± 0.45 d | 23.10 ± 0.47 c |
Eriodictyol 7-O-neohesperidoside (Neoeriocitrin) | 0.01 ± 0.00 a | 0.01 ± 0.00 a | 0.01 ± 0.00 a | 0.00 ± 0.00 a | 0.00 ± 0.01 a | 0.01 ± 0.01 a |
Caffeic acid | 0.25 ± 0.05 b | 0.30 ± 0.02 a | 0.14 ± 0.02 | 0.27 ± 0.04 a | 0.17 ± 0.05 c | 0.28 ± 0.04 a |
Quercetin 3-glucosyl-(1->2)-galactoside | 0.01 ± 0.01 a | 0.01 ± 0.00 a | 0.01 ± 0.00 a | 0.01 ± 0.00 a | 0.01 ± 0.00 a | 0.02 ± 0.00 a |
Quercetin-3-O-rutinoside (Rutin) | 0.01 ± 0.01 a | 0.01 ± 0.00 a | 0.01 ± 0.01 a | 0.01 ± 0.00 a | 0.01 ± 0.00 a | 0.02 ± 0.00 a |
Quercetin 3-galactoside | 0.16 ± 0.04 ab | 0.09 ± 0.02 b | 0.07 ± 0.02 b | 0.05 ± 0.01 b | 0.03 ± 0.01 c | 0.24 ± 0.05 a |
1,3-Dicaffeoyquinic acid (1,3-diCQA) | 30.79 ± 0.70 b | 23.79 ± 0.29 c | 19.37 ± 0.82 d | 31.97 ± 0.26 a | 16.03 ± 0.78 e | 26.83 ± 0.28 c |
1,4-Dicaffeoyquinic acid (1,4-diCQA) | 12.95 ± 0.80 b | 4.93 ± 0.16 c | 5.76 ± 0.39 c | 21.40 ± 0.93 a | 5.93 ± 3.01 c | 13.27 ± 0.31 b |
3,5-Dicaffeoyquinic acid (3,5-diCQA) | 31.52 ± 0.17 b | 21.00 ± 0.47 d | 10.02 ± 0.56 f | 36.77 ± 0.63 a | 16.57 ± 8.30 e | 26.83 ± 0.39 c |
4,5-Dicaffeoyquinic acid (4,5-diCQA) | 0.70 ± 0.11 a | 0.39 ± 0.08 d | 0.28 ± 0.03 d | 0.86 ± 0.08 a | 0.43 ± 0.03 c | 0.62 ± 0.07 b |
Orange Fleshed Storage Roots | Cream Fleshed Roots | |||||
---|---|---|---|---|---|---|
‘Bophelo’ | ‘Beauregard’ | ‘199062.1′ | ‘Monate’ | ‘Ndou’ | ‘Blesbok’ | |
FRAP (µM TEAC g−1) | 525.63 ± 1.09 b | 459.53 ± 1.84 c | 532.06 ± 7.87 a | 184.20 ± 1.51 f | 231.58 ± 3.27 e | 272.82 ± 1.51 d |
DPPH (IC50 mg mL−1) | 4.27 ± 0.10 b | 4.42 ± 0.03 b | 4.60 ± 0.03 b | 6.39 ± 0.02 a | 6.05 ± 0.10 a | 6.80 ± 0.02 a |
ABTS (IC50 mg mL−1) | 4.32 ± 0.20 b | 4.32 ± 0.20 b | 4.73 ± 0.5 b | 6.67 ± 0.04 a | 6.12 ± 0.30 a | 6.90 ± 0.12 a |
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Phahlane, C.J.; Laurie, S.M.; Shoko, T.; Manhivi, V.E.; Sivakumar, D. Comparison of Caffeoylquinic Acids and Functional Properties of Domestic Sweet Potato (Ipomoea batatas (L.) Lam.) Storage Roots with Established Overseas Varieties. Foods 2022, 11, 1329. https://doi.org/10.3390/foods11091329
Phahlane CJ, Laurie SM, Shoko T, Manhivi VE, Sivakumar D. Comparison of Caffeoylquinic Acids and Functional Properties of Domestic Sweet Potato (Ipomoea batatas (L.) Lam.) Storage Roots with Established Overseas Varieties. Foods. 2022; 11(9):1329. https://doi.org/10.3390/foods11091329
Chicago/Turabian StylePhahlane, Charmaine J., Sunette M. Laurie, Tinotenda Shoko, Vimbainashe E. Manhivi, and Dharini Sivakumar. 2022. "Comparison of Caffeoylquinic Acids and Functional Properties of Domestic Sweet Potato (Ipomoea batatas (L.) Lam.) Storage Roots with Established Overseas Varieties" Foods 11, no. 9: 1329. https://doi.org/10.3390/foods11091329