Cadmium elimination from mid-gut gland of the Japanese scallop [Patinopecten yessoensis] and liver of the Japanese common squid [Todarodes pacificus].
1994
Kurihara H. | Tanibata N. | Hatano M.
The behavior of cadmium (Cd) in the mid-gut gland of the Japanese scallop Patinopecten yessoensis and the liver of the Japanese common squid Todarodes pacificus was investigated when the organs were immersed in a HCl or NaOH solution, or a (NH4)2SO4 or NaCl solution. Cd elimination was evaluated by comparing RS values, defined as the ratio of the amount of Cd in the supernatant to the total amount of Cd after centrifugation of the whole organ after it was dipped in the solution examined. In the case of the scallop mid-gut gland, treatments immersed in a HCl solution (pH 1) exhibited higher RS values than the other treatments examined. In the case of the squid liver, all treatments showed low RS values. Difference in RS values between mid-gut gland and liver was attributed to the lower permeability of the liver membrane to the treated solutions. Moreover, Cd elimination increased when the treatment immersed in a HCl solution was boiled. Boiling of the organs after immersion in the acidic solution (pH 1) was considered to be an effective method for eliminating Cd.
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