Comparative study on chemical composition, polyphenols, flavonoids, carotenoids and antioxidant activities of various cultivars of sweet potato

Summary Chemical composition, polyphenols, flavonoids, carotenoids and antioxidant activities of twenty‐five cultivars of sweet potato were investigated. Starch, crude protein, crude fat, total dietary fibre, reducing sugar and ash contents ranged between 51.88–69.21, 2.36–7.79, 0.24–1.11, 5.02–14.3...

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Published in:International journal of food science & technology 2020-01, Vol.55 (1), p.369-378
Main Authors: Kourouma, Vamougne, Mu, Tai‐Hua, Zhang, Miao, Sun, Hong‐Nan
Format: Article
Language:English
Subjects:
Antioxidant activities
Antioxidants
Carotene
Carotenoids
Chemical composition
Comparative studies
Cultivars
Dietary fiber
Flavonoids
Ipomoea batatas
Organic chemistry
Polyphenols
Potatoes
Starch
sweet potato
Sweet potatoes
β-Carotene
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description Summary Chemical composition, polyphenols, flavonoids, carotenoids and antioxidant activities of twenty‐five cultivars of sweet potato were investigated. Starch, crude protein, crude fat, total dietary fibre, reducing sugar and ash contents ranged between 51.88–69.21, 2.36–7.79, 0.24–1.11, 5.02–14.35, 1.07–9.78 and 1.95–4.29 g per 100 g dry weight (DW), respectively. Cultivars of Longshu, Pushu 32 and Qinshu No.7 (Shanxi province) displayed the highest values in total polyphenol contents (9.38, 9.11 and 8.76 mg GAE per g DW, respectively), Huangmeigui showed higher flavonoids content (2.54 mg RE per g DW), Xiangshu presented higher anthocyanin content (1.02 mg per g DW), whereas Pushu 32 had the highest β‐carotene content (208.11 μg per g DW). Strong significant positive correlations were presented between antioxidant activities and total polyphenol and flavonoid contents, indicating that polyphenols and flavonoids are essential antioxidants in sweet potatoes. Among all cultivars, Pushu 32 presented the highest grey relational grade (GRG) value (0.7811), suggesting its importance as a healthy diet. Chemical composition, polyphenols, flavonoids, carotenoids and antioxidant activities of various cultivars of sweet potato were studied. Among all cultivars, Pushu 32 presented the highest grey relational grade (GRG) value (0.7811), suggesting its importance as a healthy diet.
doi_str_mv 10.1111/ijfs.14336
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Starch, crude protein, crude fat, total dietary fibre, reducing sugar and ash contents ranged between 51.88–69.21, 2.36–7.79, 0.24–1.11, 5.02–14.35, 1.07–9.78 and 1.95–4.29 g per 100 g dry weight (DW), respectively. Cultivars of Longshu, Pushu 32 and Qinshu No.7 (Shanxi province) displayed the highest values in total polyphenol contents (9.38, 9.11 and 8.76 mg GAE per g DW, respectively), Huangmeigui showed higher flavonoids content (2.54 mg RE per g DW), Xiangshu presented higher anthocyanin content (1.02 mg per g DW), whereas Pushu 32 had the highest β‐carotene content (208.11 μg per g DW). Strong significant positive correlations were presented between antioxidant activities and total polyphenol and flavonoid contents, indicating that polyphenols and flavonoids are essential antioxidants in sweet potatoes. Among all cultivars, Pushu 32 presented the highest grey relational grade (GRG) value (0.7811), suggesting its importance as a healthy diet. Chemical composition, polyphenols, flavonoids, carotenoids and antioxidant activities of various cultivars of sweet potato were studied. 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source Oxford Journals Open Access; Wiley-Blackwell Read & Publish Collection
subjects Antioxidant activities
Antioxidants
Carotene
Carotenoids
Chemical composition
Comparative studies
Cultivars
Dietary fiber
Flavonoids
Ipomoea batatas
Organic chemistry
Polyphenols
Potatoes
Starch
sweet potato
Sweet potatoes
β-Carotene
title Comparative study on chemical composition, polyphenols, flavonoids, carotenoids and antioxidant activities of various cultivars of sweet potato
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