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Development of a depuration protocol for commercially important edible bivalve molluscs of India: Ensuring microbiological safety

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Title Development of a depuration protocol for commercially important edible bivalve molluscs of India: Ensuring microbiological safety
Not Available
 
Creator Chinnadurai, S.
Elavarasan, K.
Geethalakshmi, V.
Kripa, V.
Mohamed, K.S.
 
Subject Ashtamudi and Vembanad Estuaries
Edible Bivalves
Bacteria
Depuration
Food safety
 
Description Not Available
We investigated the effect of depuration of three naturally contaminated commercially important tropical edible bivalve molluscs by varying temperature, salinity and body-size of animals harvested from Ashtamudi and Vembanad estuaries, India using a static depuration system to ensure microbiological food safety. Before depuration, the levels of faecal indicators and pathogens were above the acceptable limits for live consumption. The depuration water temperature had a significant effect on bacterial elimination. Log reduction of faecal coliforms (FC) and E. coli varied between room-temperature (RTDS) and low-temperature depuration system (LTDS) and it was in the range of 1.39–2.44 and 1.88–2.82 log MPN, respectively under RTDS and LTDS. The elimination of bacterial pathogens such as Vibrio and Salmonella spp. was rapid in RTDS compared to LTDS. The highest elimination of FC and E. coli (2.39 and 2.92 log) was at 35 psμ depuration and the lowest (0.87 and 1.65 log) at 15 psμ depuration. The reduction of FC and E. coli was higher in the medium-sized animals compared to the small animals. Based on the results it is recommended that depuration using the static system under room-temperature (30 ± 1 °C); a salinity range of (25–35 psμ) and using medium-size bivalves (clam>30 mm; mussel >45 mm, and oyster >65 mm length) as optimum conditions for producing microbiologically safe bivalves for live consumption within 36 h.
Not Available
 
Date 2023-09-27T05:58:41Z
2023-09-27T05:58:41Z
2023-04
 
Type Research Paper
 
Identifier Chinnadurai, S., Elavarasan, K., Geethalakshmi, V., Kripa, V. and Mohamed, K.S., (2023) Development of a depuration protocol for commercially important edible bivalve molluscs of India: Ensuring microbiological safety. Food Microbiology, 110:104172.
0740-0020
http://krishi.icar.gov.in/jspui/handle/123456789/80557
 
Language English
 
Relation Not Available;
 
Publisher Elsevier