{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T16:17:32Z","timestamp":1785514652739,"version":"3.56.0"},"reference-count":57,"publisher":"Wiley","license":[{"start":{"date-parts":[[2020,1,28]],"date-time":"2020-01-28T00:00:00Z","timestamp":1580169600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005419","name":"Syngenta Foundation for Sustainable Agriculture","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100005419","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000865","name":"Bill and Melinda Gates Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000865","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000278","name":"Department for International Development","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000278","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100004441","name":"Styrelsen f\u00f6r Internationellt Utvecklingssamarbete","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100004441","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["International Journal of Food Science"],"published-print":{"date-parts":[[2020,1,28]]},"abstract":"<jats:p>This study reports the inherent phytochemical contents in leaves and roots of nine sweet potato varieties from Kenya. Results indicated that vitamin C content varied significantly (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:mrow><\/mml:math>) among the sweet potato varieties regardless of the plant part, leaves having significantly (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mrow><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:mrow><\/mml:math>) higher levels than in the roots. Total flavonoids and phenolic compounds differed significantly (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mrow><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:mrow><\/mml:math>) among varieties, higher values were found in leaves than in roots. Flavonoid contents in roots ranged from below detectable limits (Whitesp) to 25.8\u2009mg CE\/100\u2009g (SPK031), while in leaves it ranged from 4097 to 7316\u2009mg CE\/100\u2009g in SPK4 and Kenspot 5, respectively. Phenolic content was below detectable limits in the roots of whitesp but it was in substantial amounts in orange fleshed varieties. The<jats:italic>\u03b2<\/jats:italic>-carotene content was significantly (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mrow><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:mrow><\/mml:math>) higher in leaves (16.43\u201334.47\u2009mg\/100\u2009g dry weight) than in roots (not detected\u201411.1\u2009mg\/100\u2009g dry weight). Total and phytic phosphorus were directly correlated with phytate contents in leaves and the roots. Tannins and soluble oxalates varied significantly (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M5\"><mml:mrow><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:mrow><\/mml:math>) with variety and plant part being higher in leaves. The current information is important for ration formulations and dietary recommendations utilizing sweet potato leaves and roots. Future studies on effects of processing methods on these phytochemicals are recommended.<\/jats:p>","DOI":"10.1155\/2020\/3567972","type":"journal-article","created":{"date-parts":[[2020,1,28]],"date-time":"2020-01-28T23:34:09Z","timestamp":1580254449000},"page":"1-11","source":"Crossref","is-referenced-by-count":32,"title":["Phytochemicals in Leaves and Roots of Selected Kenyan Orange Fleshed Sweet Potato (OFSP) Varieties"],"prefix":"10.1155","volume":"2020","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2524-7862","authenticated-orcid":true,"given":"George","family":"Ooko Abong\u2019","sequence":"first","affiliation":[{"name":"Department of Food Science, Nutrition and Technology, University of Nairobi, P.O. Box 29053-00625, Kangemi, Kenya"},{"name":"Biosciences Eastern and Central Africa-International Livestock Research Institute Hub, P.O. Box 30709-00100, Nairobi, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2432-2165","authenticated-orcid":true,"given":"Tawanda","family":"Muzhingi","sequence":"additional","affiliation":[{"name":"Food and Nutritional Evaluation Laboratory, International Potato Centre, P.O. Box 25171-00603, Nairobi, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Wandayi Okoth","sequence":"additional","affiliation":[{"name":"Department of Food Science, Nutrition and Technology, University of Nairobi, P.O. Box 29053-00625, Kangemi, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fredrick","family":"Ng\u2019ang\u2019a","sequence":"additional","affiliation":[{"name":"Biosciences Eastern and Central Africa-International Livestock Research Institute Hub, P.O. Box 30709-00100, Nairobi, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Phillis E.","family":"Ochieng\u2019","sequence":"additional","affiliation":[{"name":"Biosciences Eastern and Central Africa-International Livestock Research Institute Hub, P.O. Box 30709-00100, Nairobi, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Mahuga Mbogo","sequence":"additional","affiliation":[{"name":"Food and Nutritional Evaluation Laboratory, International Potato Centre, P.O. Box 25171-00603, Nairobi, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Derick","family":"Malavi","sequence":"additional","affiliation":[{"name":"Food and Nutritional Evaluation Laboratory, International Potato Centre, P.O. 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