AACL Bioflux, vol: 14,2 (2021)
Farming and food safety analysis of blood cockles (Anadara granosa) from Rokan Hilir, Riau, Indonesia
Riza S., Gevisioner G., Suprijanto J., Widowati I., Putra I., Effendi I.
Abstract
Blood cockles (Anadara granosa) have been cultivated and became an export commodity from Panipahan, Rokan Hilir, Riau. The study aimed to determine the condition of the bivalve farming, the water quality of the surrounding area and the food safety aspects of the commodity. Samples were taken by purposive sampling method and selected based on the intertidal zone and on the different human activities around the area. Samplings were carried out 4 times during 5 months of observation in 2 intertidal zones, namely the lower and upper intertidal zones. The farming was started in 2010, using a semi-intensive cultivation system, and in 2018 a production of 6,492.47 tons (49.67% of the total aquaculture production in Rokan Hilir Regency) was recorded. Water quality was classified as good for the cockles’ culture and the microbiological analysis of water and the cockles flesh showed that the bacterial densities of Escherichia coli and coliforms were still below the threshold, while the presence of Salmonella was negative. Heavy metals were also found in the A. granosa flesh: Pb (0.118-0.138 mg L-1), Cd (0.074-0.077 mg L-1) and Hg (0.140-0.163 mg L-1). However, the contamination levels were still far below the thresholds, demonstrating the A. granosa suitability for human consumption. © 2021, BIOFLUX SRL. All rights reserved.
Keyword: Bivalve; Cockle farming; Coliform; Heavy metals; Mercury