Presence of Arsenic in Argentinian Rices. Strategies to Minimize Them
Abstract
Arsenic (As) is a ubiquitous chemical element present in nature that is harmful to live beings; it has been classified as a carcinogen class 1, and its toxicity depends on its chemical form, resulting in the inorganic forms being more toxic than organic forms. It is known that rice is one of major contributors to the consumption of inorganic As for humans. Because of this, the Codex Alimentarius defined as maximum values of total As and inorganic As in polished rice of 0.30 mg kg -1 and 0.20 mg kg -1 , respectively. Rice is efficient in absorb high amounts of As because anaerobic condition generated from flood increase As availability and mobility. Natural resources used for rice production (soil and water) in Entre Ríos province of Argentina are characterized by low total contents of As, while in white polished rice grains mean value is 0.34 mg total As kg -1 .
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2023-02-08
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