Journal
FOOD CHEMISTRY
Volume 106, Issue 3, Pages 1100-1104Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2007.07.037
Keywords
fresh Fijian vegetables; folic acid; total folate; Chinese cabbage (Brassica chinesis); Bele (Abelmoschus manihot); long bean (Vigna sesquipedalis); tri-enzyme method; potease; alpha-Amylase and chicken pancreas
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Folic acid and total folate contents of 18 common foods in the Fijian diet were assayed. Foods were purchased from the central and eastern parts of Viti Levu in Fiji. Tri-enzyme treatment was performed to release bound folates using protease and alpha-amylase, with chicken pancreas as the conjugase. The highest total folate content was recorded for egg yolk (Gallus domesticus) at 256 mu g/100 g, followed by long beans (Vigna sesquipedalis) which contained 130 mu g/100 g of total folate (fresh weight basis). The local leafy vegetable called Bele (Abelmoschus manihot) and the Drumstick leaves (Moringa oleifera) available in Fiji also had high total folate contents, above 100 mu g/100 g (fresh weight basis). For the 18 foods studied, the content of folic acid ranged from 3 to 189 mu g/100 g and the total folate content was in the range of 3-256 mu g/100 g, indicating a very wide range of folate content in the foods studied. (c) 2007 Elsevier Ltd. All rights reserved.
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