Folate content of different edible portions of vegetables and fruits
Author:
Phillips Katherine M.,Rasor Amy S.,Ruggio David M.,Amanna Karen R.
Abstract
PurposeSignificant differences may occur in the nutrient content of different edible portions of vegetables and fruits. The purpose of this study was to screen the folate content of different edible portions of some common fruits and vegetables.Design/methodology/approach5‐methyltetrahydrofolate was measured using high‐performance liquid chromatography/mass spectrometry in composites of asparagus tips and stems, broccoli florets and stems, the bulb and leaves of leeks, and the peel and flesh of apples, pears, peaches, and potatoes.FindingsFolate content was significantly higher (25 µg/100 g) in asparagus tips vs stems or whole vegetable and leek bulbs compared to leaves or the whole plant, on an as‐consumed basis. No significant difference was found in the edible portions within the other products.Practical implicationsSelective consumption of asparagus tips and leek bulbs would increase folate intake compared to the whole vegetable or the stems and leaves. Consideration should be given to possible differences in composition within other vegetables and fruits not studied.Originality/valueThere have been no previous reports on folate distribution in edible portions of vegetables and fruits that are rich sources of this vitamin.
Subject
Nutrition and Dietetics,Food Science
Reference21 articles.
1. Association of Official Analytical Chemists (1990), Official Methods of Analysis of the Association of Official Analytical Chemists, 15th ed., Method 934.01, Association of Official Analytical Chemists, Washington, DC. 2. Booth, S.L., Sadowski, J.A., Weihrauch, J.L. and Ferland, G. (1993), “Vitamin K1 (phylloquinone) content of foods: a provisional table”, Journal of Food Composition and Analysis, Vol. 6 No. 2, pp. 109‐20. 3. Finglas, P.M., Scott, K.J., Witthöft, C.M., Van Den Berg, H. and de Froidmont‐Görtz, I. (1999a), “The certification of the mass fractions of vitamins in flour reference materials: wholemeal flour (CRM121), milk powder (CRM 421), lyophilized mixed vegetables (CRM 485) and lyophilized pigs liver (CRM 487)”, Office for Official Publications of the European Communities, Luxembourg. 4. Finglas, P.M.,Wigertz, K., Vahteristo, L., Witthöft, C, Southon, S. and de Froidmont‐Görtz, I. (1999b), “Standardisation of HPLC techniques for the determination of naturally‐occurring folates in food”, Food Chemistry, Vol. 64, pp. 245‐55. 5. Konings, E.J.M., Roomans, H.H., Dorant, E., Goldbohm, R.A, Saris, W.H. and van den Brandt, P.A. (2001), “Folate intake of the Dutch population according to newly established liquid chromatography data for foods”, American Journal of Clinical Nutrition, Vol. 73, pp. 765‐76.
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