Oxalate Content of Silver Beet Leaves (Beta vulgaris var. cicla) at Different Stages of Maturation and the Effect of Cooking with Different Milk Sources
- 30 October 2009
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 57 (22), 10804-10808
- https://doi.org/10.1021/jf902124w
Abstract
The work presented here indicates that people who have a tendency to develop kidney stones should avoid consuming regrowth and developed silver beet (Beta vulgaris var. cicla) leaves. Soluble oxalate contents of leaves range from 58% of the total oxalate for the mature leaves up to 89% for the regrowth tissue, with regrowth tissue containing the highest levels of soluble oxalate at 7267+/-307 mg/100 g of dry matter (DM). Leaves cooked in milk contained significantly (p<0.05) lower levels of soluble oxalate compared to the leaves that were cooked in water. Leaves cooked in low fat milk contained significantly lower levels (p<0.05) of soluble oxalate (1.9%) than leaves cooked in standard milk (5.3%) or cream (6.3%). To maximize the reduction of soluble oxalate during the cooking of high oxalate foods such as spinach and silver beet, a low fat milk cooking medium with neutral pH should be utilized.This publication has 19 references indexed in Scilit:
- Tea OxalateNutrition Reviews, 2009
- Composition of oxalates in baked taro (Colocasia esculenta var. Schott) leaves cooked alone or with additions of cows milk or coconut milkJournal of Food Composition and Analysis, 2009
- Oxalates in some Indian green leafy vegetablesInternational Journal of Food Sciences and Nutrition, 2008
- Effect of Different Cooking Methods on Vegetable Oxalate ContentJournal of Agricultural and Food Chemistry, 2005
- Bioavailability of soluble oxalate from tea and the effect of consuming milk with the teaEuropean Journal of Clinical Nutrition, 2003
- Dietary influences on urinary oxalate and risk of kidney stonesFrontiers in Bioscience-Landmark, 2003
- Comparison of extraction methods for the determination of soluble and total oxalate in foods by HPLC-enzyme-reactorFood Chemistry, 2002
- Effect of Cooking on the Soluble and Insoluble Oxalate Content of Some New Zealand FoodsJournal of Food Composition and Analysis, 2000
- Oxalate content of foods and its effect on humansAsia Pacific Journal of Clinical Nutrition, 1999
- Organic acids and calcium oxalate in tropical root cropsJournal of Agricultural and Food Chemistry, 1989