Provitamin a carotenoids, tocopherols, ascorbic acid and minerals in indigenous leafy vegetables from Tanzania
| dc.creator | Gowele, V. F. | |
| dc.creator | Kinabo, J. | |
| dc.creator | Jumbe, T. | |
| dc.creator | Kirschmann, C. | |
| dc.creator | Frank, J. | |
| dc.creator | Stuetz, W. | |
| dc.date | 2021-04-24T08:22:29Z | |
| dc.date | 2021-04-24T08:22:29Z | |
| dc.date | 2019 | |
| dc.date.accessioned | 2022-10-25T08:50:13Z | |
| dc.date.available | 2022-10-25T08:50:13Z | |
| dc.description | Foods 2019, 8, 35; doi:10.3390/foods8010035 | |
| dc.description | The 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. | |
| dc.format | application/pdf | |
| dc.identifier | https://www.suaire.sua.ac.tz/handle/123456789/3486 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/89924 | |
| dc.language | en | |
| dc.publisher | MDPI | |
| dc.subject | Leafy vegetables | |
| dc.subject | Micronutrients | |
| dc.subject | Carotenoids | |
| dc.subject | Nutrient intake | |
| dc.subject | Tanzania | |
| dc.title | Provitamin a carotenoids, tocopherols, ascorbic acid and minerals in indigenous leafy vegetables from Tanzania | |
| dc.type | Article |