Kelp
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| File:GiantKelp.png | |
| Species | Macrocystis pyrifera |
|---|---|
| Category | seaweed |
| Growing area | warm oceans |
| Range | Western North America, South America, South Africa, New Zealand, Southern Australia, Japan |
| Taxonomy | Heterokontophyta; Phaeophyceae; Laminariales; Laminariaceae |
Kelp is a subcategory of seaweed. In California, the Giant Brown Kelp (Macrocystis Pyrifera) is the most common kind. N.B. In older texts, "kelp" refers to burnt seaweed: its ash and assorted residues.
Uses
Other
- Primary source of iodine
- Source of bromine
- Kelp ash is primarily sodium carbonate, rather than potassium carbonate.
- source of alginate, agar, gelatin, etc.
- Foodstuff
Drying
- Gather kelp
- Wash thoroughly in fresh water
- Dry
- Shred and compact
Iodine content
| Source | Wet Kelp | Dry Kelp | Ash | Iodides | Iodine | Notes |
|---|---|---|---|---|---|---|
| The economic value of pacific coast kelps[1] | 1 | 0.16 | .0001-.0008 | Specifically M. Pyrifera. Also has data for potassium, phosphorus, drying, moisture content... | ||
| A report by Hill Laboratories[2] | 1 | 0.00212-0.00227 | Specifically M. Pyrifera. Assuming wet weight. | |||
| Iofina[3] | 1 | 0.0045 | Assuming wet weight. Not specified. | |||
| Outlines of Industrial Chemistry[4] | 1 | 0.005-0.015 | ||||
| Biomara[5] | 1 | 0.05 | ||||
| Kelp Burning in the Glens[6] | 1 | .333 | .003666 | Not clear what the end result was | ||
| A Spanish chemistry text[7] | 1 | 0.0005 | ||||
| Thyroid[8] | 1 | .000800-.008165 | Dietary analysis of food kelp - not M. Pyrifera | |||
| A Chinese patent[9] | 1 | 0.000180 | ||||
| Interview[10] | 1 | 0.0005 | Numbers are for British Kelp as reported to French Society of Industrial Chemistry. | |||
The references above show 0.1-5 grams (.02 to 1 ml) of iodine per kilo of wet kelp. Wet kelp vs 0% moisture kelp is at least a factor of 6 by itself, leaving a factor of 8.4 or so for the species.
See Also
References
- ↑ Burd, John S (1915) "The economic value of pacific coast kelps"
UC Berkeley College of Agriculture - ↑ Report 318485
courtesy Hill Laboratories, NZ. - ↑ Iodine
courtesy Iofina. - ↑ Thorp, Frank Hall; Demon, Charles D (1905) "Outlines of industrial chemistry: a text-book for students"
- ↑ The Importance of Seaweed Across the Ages
Last accessed 11-Sep-2013. - ↑ Kelp Burning in the Glens
courtesy Glens of Antrim Historical Society. - ↑ (17-March-2000) "TEMA2: GRUPO17: LOS HALÓGENOS"
Universitad de la Habana - ↑ Teas, Jane; Pino, Sam; Critchley, Alan; Braverman, Lewis E. (2004) "Variability of Iodine Content in Common Commercially Available Edible Seaweeds"
Thyroid 14(10); pp836–41. - ↑ Method for determining content of iodine in kelp
courtesy Google Patents. - ↑ Deschiens, Maurice "Fifty tons of iodine made from seaweed in 1925"
J Chem. Ed. 3; pp1043.
link courtesy ACS.