La. Carmichael et Dcw. Sanderson, The use of acid hydrolysis for extracting minerals from shellfish for thermoluminescence detection of irradiation, FOOD CHEM, 68(2), 2000, pp. 233-238
Inorganic grits contained in shellfish can be used for the thermoluminescen
ce detection of irradiation treatment. Acid hydrolysis of the flesh of the
shellfish to leave the minerals behind has been explored as an alternative
to the physical dissection method previously employed. The hydrolysis techn
ique was developed and assessed using six species of shellfish (Nephrops no
rvegicus, brown shrimps, mediterranean crevettes, black tiger prawns, warm
water shrimps and king scallops). It has also been evaluated under interlab
oratory trial conditions. In all cases, excellent discrimination between ir
radiated and unirradiated products was obtained using hydrolysis extracts.
The method produces results which are comparable or better than conventiona
l physical extraction, and has some benefits in sample handling. (C) 1999 E
lsevier Science Ltd. All rights reserved.