Over 3 billion people share a diet consisting mainly of rice, which may contain significant amounts of arsenic. Because the toxicity of arsenic is dependent on its chemical form and that it may be in a form that is not bio-accessible (i.e. dissolved in the gastrointestinal tract) and can thus not become bio-available (i.e. end up in the blood stream, where it may exert its toxic effect), the bio-accessibility of arsenic was determined in thirteen different types of rice. The effects of washing and cooking were also studied. The total concentration of arsenic ranged from 93 to 989 µg kg and its bio-accessibility ranged from 16 to 93%. Cooking only changed arsenic speciation in a few cases. However, simply washing rice with arsenic-free water before cooking removed 3-43% of the arsenic, resulting in all the rice tested except the most contaminated one being safe to consume by adults.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.foodchem.2018.03.015 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Feasible approaches for arsenic speciation analysis in foods for dietary exposure assessment: a review.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
January 2025
Department of Food Science and Nutrition, Hong Kong Polytechnic University, Kowloon, Hong Kong, China.
Arsenic (As) occurs naturally in different forms and oxidation states. Amongst them, inorganic arsenic (iAs) is classified as both genotoxic and carcinogenic whilst other organic arsenic species are considered less toxic. As in rice is mainly present in the form of iAs which therefore poses a health risk to populations that consume rice as a staple food.
View Article and Find Full Text PDFContrasting effects of arsenic on mycorrhizal-mediated silicon and phosphorus uptake by rice.
J Environ Manage
January 2025
Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
Silicon (Si) and arbuscular mycorrhizal fungi (AMF) increase plant resistance to various environmental stresses, including heavy metal (and metalloid) toxicity. Although Si and AMF each independently enhance plant tolerance, the nature of their interactions and their combined impacts on nutrient uptake, especially in the context of toxic elements such as arsenic (As), remains to be elucidated. This study investigated AMF-mediated regulation of plant nutrient uptake under As stress using rice, a model Si-accumulating plant.
View Article and Find Full Text PDFBoosting Rice Resilience: Role of Biogenic Nanosilica in Reducing Arsenic Toxicity and Defending against Herbivore.
Environ Sci Technol
December 2024
Institute of Biology, University of Neuchatel, 2000 Neuchatel,Switzerland.
The use of nanoparticles is a promising ecofriendly strategy for mitigating both abiotic and biotic stresses. However, the physiological and defense response mechanisms of plants exposed to multiple stresses remain largely unexplored. Herein, we examined how foliar application of biogenic nanosilica (BNS) impacts rice plant growth, molecular defenses, and metabolic responses when subjected to arsenic (As) toxicity and infested by the insect .
View Article and Find Full Text PDFAttenuated cadmium and arsenic enrichment in rice by co-application of organic composting and chemical fertilization.
Sci Rep
December 2024
College of Resources and Environment, Department of Environment Science and Engineering, Southwest University, Chongqing, 400715, China.
A pot experiment was conducted on arsenic (As) and cadmium (Cd) co-contaminated soil to discern the influence of varying proportions of pig manure compost (PM) vis-à-vis chemical fertilizers (NPK) on the mitigation of Cd and As absorption by rice. Our findings illustrated that by increasing the PM proportions from 25 to 100%, it manifested a statistically significant reduction in the mobilized fractions of Cd, accounting for up to 77% reduction in soil CaCl-Cd concentrations. Conversely, the NaHCO-As reactions were contingent on the distinct PM application rates.
View Article and Find Full Text PDFTotal arsenic and inorganic arsenic in Myanmar rice.
Heliyon
December 2024
Department of Earth and Environmental Sciences and Williamson Research Centre for Molecular Environmental Sciences, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, M13 9PL, United Kingdom.
Myanmar is a major rice exporter. Rice is an important source of nourishment for its population. However, rice can be contaminated with toxic elements, including arsenic, long-term exposure to which has been linked to several illnesses, including cancer.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!