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Effect of different cooking methods on the content and bioaccessibility of iodine components in abalone (Haliotis discus hannai)

Authors
Doh, HansolLee, Min HyeockPark, Hyun Jin
Issue Date
15-12월-2019
Publisher
ELSEVIER SCI LTD
Keywords
Iodine; Abalone (Haliotis discus hannai); Cooking; Bioaccessibility; In vitro digestion
Citation
FOOD CHEMISTRY, v.301
Indexed
SCIE
SCOPUS
Journal Title
FOOD CHEMISTRY
Volume
301
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/60919
DOI
10.1016/j.foodchem.2019.125197
ISSN
0308-8146
Abstract
The present study aimed to evaluate the changes in total iodine and iodine species (iodide, iodate, 3-iodo-L-tyrosine, and 3,5-diiodo-L-tyrosine) content in abalone after different treatments (raw, semi-drying, steaming, grilling, and boiling) and in-vitro digestion using high-performance liquid chromatography-inductively coupled plasma-mass spectroscopy (HPLC-ICP-MS). The highest reduction in iodine content was found in boiled abalone (64.95%), followed by steamed (32.40%) and grilled (32.11%) abalones. There is no significant difference between iodine content of raw and semi-dried abalone. Absorption efficiency was determined by an in vitro digestion procedure using simulated gastro/intestinal solutions. Unlike total iodine content after cooking, absorption efficiency increased after cooking. Absorption efficiency of semi-dried abalone is the highest (28.53%), followed by boiled (23.85%), grilled (22.62%), steamed (21.51%), and raw (12.20%) abalones. Iodide was the major form of iodine present in the abalone after cooking and in vitro digestion. No iodate was observed, and the organic iodine content was very low.
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PARK, HYUN JIN
생명과학대학 (식품공학과)
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