Provitamin a carotenoids, tocopherols, ascorbic acid and minerals in indigenous leafy vegetables from Tanzania

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dc.contributor.authorGowele, V. F.
dc.contributor.authorKinabo, J.
dc.contributor.authorJumbe, T.
dc.contributor.authorKirschmann, C.
dc.contributor.authorFrank, J.
dc.contributor.authorStuetz, W.
dc.date.accessioned2021-04-24T08:22:29Z
dc.date.available2021-04-24T08:22:29Z
dc.date.issued2019
dc.descriptionFoods 2019, 8, 35; doi:10.3390/foods8010035en_US
dc.description.abstractThe essential micronutrients in indigenous leafy vegetables (ILVs) could substantially contribute to the micronutrient supply in rural communities in Tanzania, but concentrations differ between species. Provitamin A carotenoids, tocopherols, ascorbic acid, minerals, and phytate were analysed in 13 different species using HPLC-, ICP-OES, and photometric techniques. Eight of the 13 ILVs, including Amaranthus ssp. and Sesamum angustifolium, had high -carotene concentrations (2.91–4.84 mg/100 g fresh weight), which could provide 50% of vitamin A’s recommended nutrient intake (RNI). Six ILVs including Cleome hirta and Sonchus luxurians had high iron contents (34.5–60.4 mg/100 g, >50% RNI); Amaranthus ssp. represented the ILV with high calcium, magnesium and zinc contents (85%, 207% and 21% of RNI per 100 g); Cleome hirta and Cleome gynandra had high ascorbic acid contents (>15 mg/100 g, 34–35% of RNI), while Sesamum angustifolium was the only ILV with a high tocopherol content (7.34 mg -TE/100 g). The highest phytate concentration was found in Amaranthus ssp., which could negatively affect its role as a very good source of minerals. Results indicate that the analysed ILVs could make a substantial contribution to the vitamin A and iron supply in the diets of rural Tanzanian populations.en_US
dc.identifier.urihttps://www.suaire.sua.ac.tz/handle/123456789/3486
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.subjectLeafy vegetablesen_US
dc.subjectMicronutrientsen_US
dc.subjectCarotenoidsen_US
dc.subjectNutrient intakeen_US
dc.subjectTanzaniaen_US
dc.titleProvitamin a carotenoids, tocopherols, ascorbic acid and minerals in indigenous leafy vegetables from Tanzaniaen_US
dc.typeArticleen_US
dc.urldoi:10.3390/foods8010035en_US

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