Bulletin of the Society of Sea Water Science, Japan
Online ISSN : 2185-9213
Print ISSN : 0369-4550
ISSN-L : 0369-4550
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Volume 59, Issue 3
Displaying 1-5 of 5 articles from this issue
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  • Salt and Health with Special Reference to Regulation of Body Fluid and Blood Pressure
    Masashi IMAI
    2005 Volume 59 Issue 3 Pages 179-188
    Published: 2005
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.59.179
    JOURNAL FREE ACCESS
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    The kidney plays important roles in the maintenance of sodium balance. Regulation of glomerular filtration rate (GFR) and subsequent renal tubular reabsorption of sodium are essential. Various hormones and autacoids regulate renal hemodynamics and tubular reabsortion. The autoregulation of the kidney also plays a critical role. The responses of the kidney to salt depletion are more effective than those to salt overloading. Although the kidney participates in major way in the pathogenesis of hypertension, it is a matter of considerable dispute whether excessive dietary salt intake causes hypertension. Salt restriction is effective only in salt-sensitive subjects. Strict salt restriction might be of hazard to health. The policy of universal salt restriction should be avoided. It is expected to find simple method to identify the saltsensitivity.
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  • Bittern as a Supplement of Minerals
    Toshio HASHIMOTO
    2005 Volume 59 Issue 3 Pages 189-194
    Published: 2005
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.59.189
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    Bittern is a concentrate of seawater condensed by one thirtieth to one fortieth by volume. It contains, therefore, most of the minerals dissolved in seawater. But constituents and their contents are a little changed by depending on producing methods. What kinds of constituents in bittern are useful for human body as a supplement of minerals? Only major minerals such as magnesium, calcium and potassium are useful as nutrients of minerals. Many other minor minerals are not enough included to be useful for human body. Common bittern has little calcium, but the bittern made by ionexchange membrane electrodialysis method has calcium and more potassium than common bittern. So the former is superior to the later as supplement of minerals. One milliliter of the former bittern can supplement twenty and ten percent of magnesium and potassium intake needed in a day, respectively. Toshio, HASHIMOTO
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  • Minerals Contained in Deep Ocean Water and Their Current Utilization
    Masayuki Mac TAKAHASHI
    2005 Volume 59 Issue 3 Pages 195-200
    Published: 2005
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.59.195
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    Deep ocean water (DOW), existing below ca 200m from the surface in the ocean, has been characterized with cleanliness and containing a number of minerals, which can be used for various purposes. One of the most significant effects of minerals in seawater is acceleration and completeness of fermentation processes for foods, alcohol and many others. Tastes of foods and drinks can also be improved by adding seawater and/or its salts. A stimulation of the growth of human skin cells and formation of cornified envelope during skin cell maturation opened DOW applications into skin care and subsidiary uses for medical skin treatments. Seawater is also applied for soil improvement by adding minerals and for improving tastes of vegetables, crop and fruits by spraying onto leaves. Although many of these effects can be made by surface seawater, DOW has a great advantage for foods, drinks and skin cares because these require high cleanliness.
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  • Production of Riboflavins by Marine Bacteria and Photolysis of Dimethyl Sulfide by Riboflavins
    Hiroyuki FUSE, Yukiho YAMAOKA, Toshio OMORI
    2005 Volume 59 Issue 3 Pages 201-204
    Published: 2005
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.59.201
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    Marinobacterium sp. DMS-S1 is a marine bacterium that can assimilate dimethyl sulfide (DMS) as a sulfur source only with light. It released several hundred nmol/L of FAD, several dozen nmol/L of FMN, and several nmol/L of riboflavin into the media while it grew with enough sulfate. Most of the photooxidized products derived from DMS were dimethyl sulfoxide (DMSO) in the presence of methylene blue or chlorophyll a.On the other hand, several dozen % of DMS was photooxidized into methansulfonate and several % of DMS was photooxidized into sulfonate other than DMSO in the presence of riboflavins. This suggests that riboflavins have a different photooxidation mechanism than that of methylene blue or chlorophyll a.
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  • The Method for Measuring Properties of Solid Particles of Salt-Part2
    Noboru OGATA
    2005 Volume 59 Issue 3 Pages 205-208
    Published: 2005
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.59.205
    JOURNAL FREE ACCESS
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