Caracterização físico-química e microestrutural de conchas de moluscos bivalves provenientes de cultivos da região litorânea da ilha de Santa Catarina Physical chemistry and micro structural characterization of shells of bivalve mollusks from sea farmer around the Santa Catarina island

Autor: Denyo Silva, Nito Angelo Debacher, Armando Borges de Castilhos Junior, Fabio Rohers
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2010
Předmět:
Zdroj: Química Nova, Vol 33, Iss 5, Pp 1053-1058 (2010)
Druh dokumentu: article
ISSN: 0100-4042
1678-7064
DOI: 10.1590/S0100-40422010000500009
Popis: Samples of shells of oysters and mussels from sea farm around the Santa Catarina Island in south Brazil were collected and analyzed by DRX, FRX, SEM, CHN-S, FTIR, TG, AAS/Flame and AAS /GF. The results showed that the crystalline structure of mussel's shells is mainly formed by aragonite and the oyster's shells by calcite. The calcium percentage in both shells species was in the range of 33 to 35% and also 850 and 1200 mg/kg of strontium was detected in the shells of oysters and mussels, respectively. The content of organic matter was larger in the mussel's shells and the thermal degradation of both shells species occurred by three events at different temperatures from 250 to 830 ºC.
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