Content, speciation and in vitro bioaccessibility of trace elements in seaweeds and derived food products

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…They also investigated the effects of cooking (frying, grilling, boiling) on the bioaccessibility from black scabbard sh. The three methods of extraction were (a) Simplied Bioaccessibility Extraction Test (SBET) (Method EPA 9200.1-86), also called the relative 102 In addition, As and Hg speciation were measured and the effects of washing investigated. For total element determination, 0.2 g of the dried, ground samples were subjected to MAD with 65% HNO 3 and diluted to 50 mL.…”

“…A study of the contents and the bioaccessibilities of seven trace elements (As, Cd, Hg, I, Ni, Pb and Se) in 231 seaweed product samples available in Belgium has been made. 102 In addition, As and Hg speciation were measured and the effects of washing investigated. For total element determination, 0.2 g of the dried, ground samples were subjected to MAD with 65% HNO 3 and diluted to 50 mL.…”

Atomic spectrometry update: review of advances in elemental speciation

“…Seaweed products are increasingly consumed in Europe although there is concern over potential contamination by toxic elements. A study to assess the contents and bioaccessibility of trace elements in seaweed products available in Belgium has be presented by da Silva Junior et al 66 A total of 231 samples were collected in markets and As, Cd, Hg, I, Ni, Pb, and Se concentrations were measured. The As speciation and the effect of a washing treatment on total concentrations of trace elements were also studied.…”

Seaweeds and Corals from the Brazilian Coast: Review on Biotechnological Potential and Environmental Aspects

“…To expand these studies and investigate the effects (beneficial or toxic) of these chemical elements, it is necessary to develop analytical methodologies for the sample preparation (wet digestion, using inorganic acids, and oxidizing agents) of seaweed;, as well as bioaccessibility tests (simulating the physiological conditions of the organism during digestion, considering three areas of the digestive system: mouth, stomach, and intestine) and bioavailability (the evaluation of permeability and absorption) in the gastrointestinal tract [86]. In the literature, studies have investigated the bioaccessibility of phenolic compounds and carotenoids in algae [87][88][89][90][91][92][93][94], but few have evaluated essential and potentially toxic elements [95][96][97].…”