Arsenic Species in Edible Seaweeds Using In Vitro Biomimetic Digestion Determined by High-Performance Liquid Chromatography Inductively Coupled Plasma Mass Spectrometry

Table 4

Four arsenic species contents of the water extracts and gastrointestinal extracts from the five seaweeds (calculations based on the As contents, mg/kg, dry weight) (𝑛=3).

	DMA	As (III)	MMA	As (V)
L. japonica
Water extracts	36.7 ± 3.2	0.20 ± 0.03	0.0 ± 0.0	0.0 ± 0.0
Gastric extracts	0.0 ± 0.0	0.19 ± 0.02	0.0 ± 0.0	0.0 ± 0.0
Intestinal extracts	0.64 ± 0.04	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0
P. yezoensis
Water extracts	19.1 ± 2.0	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0
Gastric extracts	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0
Intestinal extracts	0.0 ± 0.0	0.31 ± 0.05	0.0 ± 0.0	0.0 ± 0.0
U. pinnatifida
Water extracts	0.74 ± 0.02	0.10 ± 0.01	0.0 ± 0.0	0.0 ± 0.0
Gastric extracts	0.44 ± 0.04	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0
Intestinal extracts	0.0 ± 0.0	0.10 ± 0.01	0.0 ± 0.0	0.0 ± 0.0
H. fusiformis
Water extracts	4.38 ± 0.26	0.0 ± 0.0	0.10 ± 0.02	23.0 ± 2.5
Gastric extracts	1.68 ± 0.15	1.47 ± 0.20	0.0 ± 0.0	0.0 ± 0.0
Intestinal extracts	2.22 ± 0.18	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0
E. prolifera
Water extracts	0.16 ± 0.02	0.0 ± 0.0	0.0 ± 0.0	0.15 ± 0.02
Gastric extracts	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0
Intestinal extracts	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0