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Effect of Cooking on the Soluble and Insoluble Oxalate Content of Some New Zealand Foods

✍ Scribed by G.P. Savage; L. Vanhanen; S.M. Mason; A.B. Ross

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 94 KB
Volume: 13
Category: Article
ISSN: 0889-1575
DOI: 10.1006/jfca.2000.0879

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✦ Synopsis

Oxalates occur as end products of metabolism in a number of plant tissues; some leafy plants and some root crops contain markedly high levels of soluble and insoluble oxalates. When consumed these oxalates can bind calcium and other minerals. Measurement of oxalate content in vegetables commonly consumed in New Zealand shows that cooking reduces the oxalate content of the food by leaching losses into the cooking water. Roots and brassicas grown in New Zealand appear to contain relatively low levels of oxalates. Leafy vegetables such as silverbeet and NZ spinach appear to approach and exceed levels found in rhubarb stalks, although New Zealand silverbeet stems contain lower levels.

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