Changes in .BETA.-Carotene Content and .BETA.-Carotene Isomer Composition in Sweet Potato during Storage.
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چکیده
منابع مشابه
Beta-carotene content of certain organs from two patients receiving high doses of beta-carotene.
We measured carotene in the livers of two patients receiving beta-carotene therapy for photosensitivity. In both patients, the amount of carotene was within reported ranges for patients on normal diets; no abnormal amounts of beta-carotene had accumulated in the livers after oral administration of large amounts of beta-carotene. Light-microscopic examination of the liver (specimen obtained at c...
متن کاملThe potential contribution of bread buns fortified with beta-carotene-rich sweet potato in Central Mozambique.
BACKGROUND Orange-fleshed sweet potato is an efficacious source of vitamin A. Substituting wheat flour with orange-fleshed sweet potato in processed products could reduce foreign exchange outlays, create new markets for producers, and result in increased vitamin A consumption among consumers provided there is adequate retention of beta-carotene during processing. OBJECTIVE To explore whether ...
متن کاملAbsorption, storage, and distribution of beta-carotene in normal and beta-carotene-fed rats: roles of parenchymal and stellate cells.
Absorption and storage of [14C]beta-carotene in control and beta-carotene-fed (BC-fed) rats were determined. Pre-feeding with beta-carotene for 2 weeks caused a 1.9-fold stimulation of its own absorption as well as its conversion to retinyl esters, whereas the absorption of [3H]retinyl acetate was unaffected. The liver and the lungs accounted for 60% and 30%, respectively, of the total recovere...
متن کاملBeta-carotene and lung cancer*
Does beta-carotene increase, rather than decrease, human lung cancer rates? A large body of observational epidemiologic study has demonstrated that individuals who eat more fruits and vegetables rich in carotenoids and/or who have higher levels of serum betacarotene have a lower risk of cancer, particularly lung cancer. This inverse relationship has been particularly strong in lung cancer patie...
متن کاملBeta-carotene accumulation in serum and skin13
The accumulation off3-carotene in serum and skin was evaluated in human volunteers. A single S I -mg dose of 3-carotene given in the absence of dietary fat resulted in no detectable change in serum /3-carotene. The same dose administered with 200 g fat increased serum /3-carotene 2.5-fold at 40 h. Similarly, administering a-carotene daily in three divided doses with meals raised the serum /3-ca...
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ژورنال
عنوان ژورنال: Engei Gakkai zasshi
سال: 1999
ISSN: 1880-358X,0013-7626
DOI: 10.2503/jjshs.68.1044