Iodine Content of American Marine Animals

Lunde, Gulbrand; Böe, Jens; Closs, Karl

doi:10.1093/icesjms/5.2.216

Cited by 5 publications

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“…Botanists have long known that most of the iodine is very loosely bound, and readily set free, probably by enzymes. Lunde and Closs (1930) find that in Laminaria digitata much iodine is extractable with water, and acidification causes precipitation of free iodine. The easily soluble iodine was thought to be present in iodide-like combination.…”

Section: Iodine In New Zealand Sea Weedsmentioning

confidence: 92%

Miscellaneous Studies on the Iodine and Goitre Problem in New Zealand

Hercus

Aitken

1933

J. Hyg.

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1. Methods for the estimation of iodine in natural products are described.2. Common sea weeds on the Pacific coast of Otago have an iodine content of the same order as similar species on the Pacific coast of British Columbia.3. In Cystophora retroflexa, which contains over 0·1 per cent, of iodine, 70–80 per cent, of the iodine appears to be in inorganic or loosely bound combination. Precipitation and colour tests indicate that di-iodotyrosine is also present.4. Observations are recorded of the iodine content of kelp-feeding and other fish.5. Administration of anaesthetics produces fluctuations in the concentration of blood iodine in rabbits, the effect persisting after removal of the thyroid gland. Experiments in vitro suggest that only in the case of inorganic iodine could a redistribution of iodine between tissues and serum be brought about by the direct action of anaesthetics.6. New Zealand cabbage possesses goitrigenous properties for rabbits but in a much smaller degree than American cabbage.7. The urinary excretion of Samoans is compared with that of inhabitants of Christchurch Mental Hospital.8. The incidence and course of development of goitre at Christchurch Mental Hospital is discussed.9. Values are given for the iodine content of Otago pigs' thyroids.

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Section: Iodine In New Zealand Sea Weedsmentioning

confidence: 92%