Effect of the method of preparation for consumption on calcium retention, calcium:phosphorus ratio, nutrient density and recommended daily allowance in fourteen vegetables.
The aim of this work was to evaluate calcium retention in 14 species of vegetable (from four usable groups). The material investigated consisted of raw and boiled fresh vegetables and two types of frozen product prepared for consumption after 12-month storage: one traditionally produced; the other obtained using the modified method (convenience food). The highest calcium content was found in leafy vegetables, followed (in descending order) by leguminous, root and brassica vegetables. The proportion by weight of Ca to P was highest in leafy vegetables and decreased with calcium retention despite the fact that levels of phosphorus were highest in leguminous and lowest in leafy vegetables. The nutrient density (ND%) of calcium for adults exceeded 100 for each individual vegetable species. The recommended daily allowance (RDA) percentage value varied between 23.04 (kale) and 1.46 (white cauliflower). Of the three types of product, ND and RDA values were generally greater in the frozen convenience products.
Department of Fruit, Vegetable and Mushroom Processing, University of Agriculture , Krakow , Poland.
Jacek
J
Słupski
Piotr
P
Gębczyński
Anna
A
Korus
Zofia
Z
Lisiewska
D000328:Adult; D000465:Algorithms; D001937:Brassica / Q000737:chemistry; D002136:Calcium, Dietary / Q000032:analysis / Q000378:metabolism*; D003296:Cooking; D007887:Fabaceae / Q000737:chemistry; D057140:Fast Foods / Q000032:analysis*; D005260:Female; D061353:Food Storage; D005628:Frozen Foods / Q000032:analysis*; D006801:Humans; D008297:Male; D009753:Nutritive Value; D016226:Phosphorus, Dietary / Q000032:analysis / Q000378:metabolism*; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D011044:Poland; D064167:Recommended Dietary Allowances; D012639:Seeds / Q000737:chemistry; D014675:Vegetables / Q000737:chemistry*
D002136:Calcium, Dietary; D016226:Phosphorus, Dietary
Calcium; calcium:phosphorus ratio; nutrient density; preparation; recommended daily allowance; vegetables