Ipomoea batatas (L.) Lam.: a rich source of lipophilic phytochemicals

Cordeiro, Nereida; Freitas, Nélia; Faria, Marisa; Gouveia, Manuela

http://hdl.handle.net/10400.13/3343

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Abstract(s)

The lipophilic extracts from the storage root of 13 cultivars of sweet potato (Ipomoea batatas (L.) Lam.) were evaluated by gas chromatography-mass spectrometry with the aim to valorize them and offer information on their nutritional properties and potential health benefits. The amount of lipophilic extractives ranged from 0.87 to 1.32% dry weight. Fatty acids and sterols were the major families of compounds identified. The most abundant saturated and unsaturated fatty acids were hexadecanoic acid (182-428 mg/kg) and octadeca-9,12-dienoic acid (133-554 mg/kg), respectively. β-Sitosterol was the principal phytosterol, representing 55.2-77.6% of this family, followed by campesterol. Long-chain aliphatic alcohols and α-tocopherol were also detected but in smaller amounts. The results suggest that sweet potato should be considered as an important dietary source of lipophilic phytochemicals.

Keywords

Sweet potato Lipophilic extractives Ipomea batatas (L.) Lam. Sterols Gas chromatography−mass spectrometry . Faculdade de Ciências Exatas e da Engenharia Faculdade de Ciências da Vida

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http://hdl.handle.net/10400.13/3343

Citation

Cordeiro, N., Freitas, N., Faria, M., & Gouveia, M. (2013). Ipomoea batatas (L.) Lam.: a rich source of lipophilic phytochemicals. Journal of agricultural and food chemistry, 61(50), 12380-12384.