Eight caviar samples from the different Sturgeons Beluga, Osietra and
Sevruga acid in addition in each case one sample Salmon caviar, Trout
caviar and Lumpfish caviar were investigated for their boric acid cont
ents as well as for lead, cadmium and mercury contamination. Moreover,
the salt and ash contents of the samples were determined. The microbi
al status of the samples was investigated and their declaration was no
ticed. Two iranian caviar samples contained the preservative boric aci
d (0.57 % and 0.32 %). Lead, cadmium and mercury burden of all the inv
estigated samples was below corresponding limits. The salt content of
Malossol caviar was within 1.7 and 5.2 %. The other caviars showed lev
els of salt from 1.0 to 4.5 %. Ash in all the samples was from 0.5 to
2.6 above salt content. One caviar sample showed elevated bacterial co
ntamination before date of expiry.