TY - JOUR
T1 - In-vitro testing for assessing oral bioaccessibility of trace metals in soil and food samples
AU - Intawongse, Marisa
AU - Dean, John
PY - 2006
Y1 - 2006
N2 - In-vitro gastrointestinal extraction, also known as oral bioaccessibility, is important when assessing chemical risk to humans. In use, it purports to simulate the release of chemicals from sample matrices (e.g., food and soil) that may be consumed intentionally or unintentionally in the diet, so in-vitro conditions are created to simulate, principally, enzymatic action in the mouth, the stomach and the intestines. This article reviews the current status of oral bioaccessibility in terms of the release of metals or metalloids from food and soil samples. We place particular emphasis on the parameters that influence gastrointestinal extraction, including gastric and intestinal pH, food constituents, residence time and particle size. It is clear that future development is needed to validate and standardize the methods.
AB - In-vitro gastrointestinal extraction, also known as oral bioaccessibility, is important when assessing chemical risk to humans. In use, it purports to simulate the release of chemicals from sample matrices (e.g., food and soil) that may be consumed intentionally or unintentionally in the diet, so in-vitro conditions are created to simulate, principally, enzymatic action in the mouth, the stomach and the intestines. This article reviews the current status of oral bioaccessibility in terms of the release of metals or metalloids from food and soil samples. We place particular emphasis on the parameters that influence gastrointestinal extraction, including gastric and intestinal pH, food constituents, residence time and particle size. It is clear that future development is needed to validate and standardize the methods.
KW - Bioaccessibility
KW - food sample
KW - in vitro
KW - simulated gastrointestinal extraction
KW - soil sample
KW - trace metal
U2 - 10.1016/j.trac.2006.03.010
DO - 10.1016/j.trac.2006.03.010
M3 - Article
VL - 25
SP - 876
EP - 886
JO - TrAC - Trends in Analytical Chemistry
JF - TrAC - Trends in Analytical Chemistry
SN - 0165-9936
IS - 9
ER -