Abstract
The present paper was undertaken to examine the contents of sodium, calcium, potassium, iron and phosphorus and the forms of sodium and potassium in muscle of Mutugoro (Boleophthalmus pectinirostris) and Warasubo (Odontamblyops rubicundus) in the Ariake Bay. The results may be summarized as follows:
The contents of Na, K, Ca, Fe and P in Mutugoro muscle were ranged 86-140, 300-330, 28-31, 3.7-4.0 and 120-124mg%. And the ranges of 103-140, 330-345, 56-69, 5.1-5.6 and 148-156mg% were found in Warasubo muscle respectively.
These minerals concentration in Mutugoro and Warasubo eggs was found 70, 72; 210, 200; 29, 27; 2.0, 1.4 and 15, 12mg%.
The relation of the concentration between these minerals was found K>P>Na>Ca>Fe in muscle. And its were found K>Na>Ca>P>Fe in eggs.
And then the authors distinguished free forms of sodium and potassium from bound forms in muscle homogenate by 10% trichloroacetic acid treatment.
The ratios of free Na and K of the extracted solution in Mutugoro and Warasubo muscle by water were within the ranges of 52-54.9%, 73-73.1% and 62-63%, 79-80.8%.
The relation of Na, K was maintained in free forms as well.
