Nutrient Composition of Raw and Steamed, Green and Purple Sweet Potato Leaf Varieties (Ipomoea batatas)

Chirwa-Moonga, Taonga; Muzungaile, Toose; Siyumbano, Neleya; Moonga, Himoonga Bernard; Nyau, V.

doi:10.7275/9ns0-1640

Cited by 2 publications

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“…According to studies conducted by Nguyen et al [ 2 ] and Zhang et al [ 11 ], SPLs have higher levels of these compounds compared to other leafy vegetables and even the roots of the plant. Additionally, SPLs can be harvested multiple times, until prior to the harvesting of tubers, making them a competitive option for leafy vegetable crops, as noted by Chirwa-Moonga et al [ 12 ]. Furthermore, SPL has a higher polyphenol content compared to spinach [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Harvesting Stages on Phytonutrients and Antioxidant Properties of Leaves of Five Purple-Fleshed Sweet Potato (Ipomoea batatas) Genotypes

Tshilongo,

Mianda,

Seke

et al. 2024

Foods

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Sweet potatoes (Ipomoea batatas) are highly profitable, contribute to food security, and their leaves contain phytonutrients. This study examined the optimal leaf harvesting stage by harvesting newly formed leaves (leaves 1 to 5) to achieve the highest concentration of carotenoids, phenolic compounds, antioxidant properties and mineral content. Leaves of five purple-fleshed sweet potato genotypes ‘2019-11-2’ and ‘2019-1-1’, ‘Purple-purple’, and from the USA ‘08-21P’ and ‘16-283P’ were harvested based on tuber life cycle [vegetative 8 weeks after planting (VS-8WAP), tuber initiation (TIS-12WAP), and tuber maturation phases (TMS-16WAP)]. At the 8WAP stage, leaves of genotype ‘2019-11-2’ had the highest concentrations of cyanidin-caffeoyl-sophoroside-glucoside (17.64 mg/kg), cyanidin-caffeoyl-feruloyl-sophoroside-glucoside (41.51 mg/kg), peonidin-caffeoyl-hydroxybenzoyl-sophoriside-glucoside (45.25 mg/kg), and peonidin caffeoyl-feruloyl-sophoriside-glucoside (24.47 mg/kg), as well as antioxidant scavenging activity. In contrast, ‘Purple-purple’ harvested at TIS-12WAP showed the highest concentration of caffeoylquinic acid derivatives. Zeaxanthin, lutein, all trans-β-carotene, and cis-β-carotene are the most abundant carotenoids in genotype ‘08-21P’ at VS-8WAP. As a result, local genotypes ‘2019-11-2’ harvested at 8WAP and ‘Purple-purple’ harvested at 12WAP are potential sources of anthocyanins and caffeoylquinic acid derivatives. Conversely, USA’s genotype ‘08-21P’ at the VS-8WAP stage is an excellent source of carotenoids. The leaves of USA’s ‘08-21P’ genotype and the local ‘2019-11-2’ genotype at TMS-16WAP exhibited the highest content of Fe and Mn, respectively. The study identified the optimal leaf stage for consumption of leaves and for use as a functional ingredient.

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Section: Introductionmentioning

confidence: 99%

Influence of Harvesting Stages on Phytonutrients and Antioxidant Properties of Leaves of Five Purple-Fleshed Sweet Potato (Ipomoea batatas) Genotypes

Tshilongo,

Mianda,

Seke

et al. 2024

Foods

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Phytochemical compounds and pharmacological activities of Ipomoea batatas L.: An updated review

Suhendy,

Fidrianny,

Insanu

2023

PHAR

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This article provides an overview of Ipomoea batatas L., the Ipomoea genus. The review covers traditional uses, nutritional value, phytochemical compounds, pharmacological activities, and toxicity studies. Data were collected from scientific databases and search engines. Sweet potatoes are used in various countries for traditional uses such as dietary fiber sources, treating allergies, and providing energy in diabetes mellitus treatment. The primary phytochemical compounds in Ipomoea batatas are phenolic compounds, flavonoids, anthocyanins, and carotenoids. Sweet potato contains several nutritional constituents: vitamin C, protein, fiber, carbohydrates, β-carotene, and minerals. Sweet potato exhibits various pharmacological activities, such as antioxidant, aphrodisiac, anticancer, and anti-inflammatory. The types of phytochemical compounds in each part of the plant are different. Each pharmacological activity and mechanism of action depends on the phytochemical compounds, part and variety of the plant, and extraction solvent. However, further study is required to investigate the chronic toxicity of Ipomoea batatas.

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Nutrient Composition of Raw and Steamed, Green and Purple Sweet Potato Leaf Varieties (Ipomoea batatas)

Cited by 2 publications

References 0 publications

Influence of Harvesting Stages on Phytonutrients and Antioxidant Properties of Leaves of Five Purple-Fleshed Sweet Potato (Ipomoea batatas) Genotypes

Influence of Harvesting Stages on Phytonutrients and Antioxidant Properties of Leaves of Five Purple-Fleshed Sweet Potato (Ipomoea batatas) Genotypes

Phytochemical compounds and pharmacological activities of Ipomoea batatas L.: An updated review

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