Results 181 to 190 of about 11,966 (219)
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Adsorption, Oxidation, and Bioaccessibility of As(III) in Soils
Environmental Science & Technology, 2005At As-contaminated sites, where the ingestion of soil by children is typically the critical human-health exposure pathway, information on the bioavailability of soil-bound As is often limited. The influence of various soil physical and chemical properties (iron and manganese oxides, pH, cation exchange capacity, total inorganic and organic carbon, and ...
Jae-Kyu, Yang +4 more
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Bioaccessibility of Calcium in Legumes
2015A review is made of the studies on calcium bioaccessibility (BA) (fraction of calcium that is released from its food matrix in the gastrointestinal tract and thus becomes available for intestinal absorption) in legumes and the dietetic factors that condition BA.
Mª Jesús Lagarda +2 more
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Adsorption, Sequestration, and Bioaccessibility of As(V) in Soils
Environmental Science & Technology, 2002The influence of various soil physical and chemical properties (Fe and Mn oxides, pH, cation exchange capacity, total inorganic and organic carbon, and particle size) on As(V) adsorption, sequestration, and relative bioaccessibility (as a surrogate for oral bioavailability) was investigated in a wide range of well-characterized soils over a 6-month ...
Jae-Kyu, Yang +4 more
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Measurement of Bioaccessibility of Organic Pollutants in Soil
2009The quantification of organic contaminant bioaccessibility in soils and sediments is essential for the risk assessment and remediation of contaminated land. Within this framework, practitioners require standardised protocols. Cyclodextrins are a group of macrocyclic compounds that can form inclusion complexes with organic xenobiotics.
Laura, McAllister, Kirk T, Semple
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Quantification and Bioaccessibility of California Pistachio Bioactives
Journal of Agricultural and Food Chemistry, 2014The content of carotenoids, chlorophylls, phenolics, and tocols in pistachios ( Pistacia vera L.) has not been methodically quantified. The objective of this study was to first optimize extraction protocols for lipophilic nutrients and then quantify the content of two phenolic acids, nine flavonoids, four carotenoids, two chlorophylls, and three tocols
Yuntao, Liu +2 more
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Bioaccessibility of metals in urban playground soils
Journal of Environmental Science and Health, Part A, 2007Children ingest soil. The amount ingested varies with the child's behaviour, and daily ingestion rates have been calculated to be between 39 and 270 mg day(-1). During play, children ingest soil both involuntarily and deliberately, and it can be assumed that the latter may result in ingestion of a larger soil particle size fraction and a larger soil ...
Ljung, K +4 more
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Assessing the bioavailability and bioaccessibility of metals and metalloids
Environmental Science and Pollution Research, 2013Bioavailability (BA) determines the potential harm of a contaminant that exerts on the receptor. However, environmental guidelines for site contamination assessment are often set assuming the contaminant is 100 % bioavailable. This conservative approach to assessing site risk may result in the unnecessary and expensive remediation of a contaminated ...
Ng, Jack C. +3 more
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Journal of Food and Nutrition Research
This study aimed to investigate the formation of malondialdehyde (MDA) and hydroxymethylfurfural (HMF) in cookies under in vitro digestive system conditions. For that purpose, MDA and HMF levels were analysed using high-performance liquid chromatography (HPLC) at initial and after in vitro digestion.
Elif Ede Çintesun +2 more
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This study aimed to investigate the formation of malondialdehyde (MDA) and hydroxymethylfurfural (HMF) in cookies under in vitro digestive system conditions. For that purpose, MDA and HMF levels were analysed using high-performance liquid chromatography (HPLC) at initial and after in vitro digestion.
Elif Ede Çintesun +2 more
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Bioaccessibility of mercury in selected Ayurvedic medicines
Science of The Total Environment, 2013Five Ayurvedic medicines with mercury concentrations of 85mg/kg and higher were characterized with respect to their speciation and their bioaccessibility. X-ray absorption spectroscopy revealed that the mercury in the Ayurvedic medicines was inorganic and best matched to cinnabar, even in samples that had been hypothesized to contain mercury through ...
Iris, Koch +5 more
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Iron amendments to reduce bioaccessible arsenic
Journal of Hazardous Materials, 2014Former sugarcane lands on the Island of Hawaii have elevated levels of soil arsenic (As) from historical use of arsenical pesticides. The bioaccessible fraction of total As (AsTOT), a measure of the potential for human As uptake by incidental ingestion of soil, is used in the assessment of human health risk and the determination of the need for ...
William G, Cutler +5 more
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