Determination of total iodine in French Polynesian foods: Method validation and occurrence data

Preparation of Novel Iodized Salt with Natural Iodine‐Rich Sources by Spray Drying

“…Sample pretreatment is a critical step for iodine determination because iodine can be easily formed from volatile species such as HI or I 2 in the environment (Leufroy et al., ). Since acceptable intake of iodine has narrow range, determination of iodine levels in iodized salt is very important.…”

Speciation of Bio‐Available Iodine in Abalone (Haliotis discus hannai) by High‐Performance Liquid Chromatography Hyphenated with Inductively Coupled Plasma‐Mass Spectrometry Using an In Vitro Method

“…Fish samples, lagoon fish, and open‐sea fish from French Polynesia had average iodine contents of about 1.57 mg/kg and giant clam (French Polynesian shell fish) contained 46.2 mg/kg iodine. Therefore, abalone has a greater iodine content than lagoon fish and open‐sea fish (Leufroy et al., ). Further, abalone even has a greater iodine content than other food groups such as French Polynesian fruits including pineapple, banana, melon, and so on, and green vegetables including cabbage leaf and green beans, which have iodine contents of only 0.014 to 0.427 mg/kg (Leufroy et al., ).…”

“…Therefore, abalone has a greater iodine content than lagoon fish and open‐sea fish (Leufroy et al., ). Further, abalone even has a greater iodine content than other food groups such as French Polynesian fruits including pineapple, banana, melon, and so on, and green vegetables including cabbage leaf and green beans, which have iodine contents of only 0.014 to 0.427 mg/kg (Leufroy et al., ). In addition, the iodine content of abalone is also greater than that of eggs and human breast milk, which contain 1.20 μg/g and 80 to 106 μg/L of iodine, respectively (Huynh, Zhou, Gibson, Palmer, & Muhlhausler, ; Toralles et al., ).…”

Analysis of iodine in food samples by inductively coupled plasma-mass spectrometry

“…However, the procedure requires the use of microwave systems designed for combustion decomposition and suffers from low sample throughput. Others have reported alkaline extractions using either NaOH, KOH or tetra-methyl ammonium hydroxide (TMAH) using a hot plate, oven or microwave assisted decomposition (Knapp & Spitzy 1969; Fecher et al 1998; Andrey et al 2001; Fernandez-Sanches et al 2007; Mesko et al 2010; Sullivan & Zywicki 2012; Leufroy et al 2015). Sample preparation and analysis in basic solutions eliminates the formation of volatile iodine species and reduces the absorption of iodine to glassware.…”