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

Chinnadurai, S.; Elavarasan, K.; Geethalakshmi, V.; Kripa, V.; Mohamed, K S

doi:10.1016/j.fm.2022.104172

Cited by 7 publications

(5 citation statements)

References 51 publications

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“…In this study, the TVC showed an initial decrease followed by an increase, possibly due to the presence of lysozyme and oxidoreductase in shellfish products. These substances are important components of the shellfish's defense system and can inhibit the growth of bacteria (Chinnadurai et al, 2023). The TVC content continues to increase at 20°C and reaches the maximum value of 6.89 log (CFU/g) on the 12th day, as shown in Figure 6d.…”

Section: Resultsmentioning

confidence: 99%

Enhancing quality assessment of live Pacific oysters (Crassostrea gigas) using flexible sensors real‐time monitoring physiological signals

Liu,

Qu,

Glamuzina

et al. 2024

J Food Process Engineering

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Shell‐closing strength (SCS) is commonly used to assess oyster vigor and quality as an important physiological stress indicator of the oyster organism. In this study, a quality decision support system based on flexible wireless sensor network and web services was designed and developed to explore the application of SCS in the rapid assessment of vitality and quality. Based on physiological and environmental information collected by flexible wireless sensor networks, this study proposes a novel quantitative vitality assessment method to identify oyster life decline cycles and processes. Meanwhile, TVB‐N, TVC, and pH were selected as quality indicators, and a back‐propagation artificial neural network (BP‐ANN) was used to predict and evaluate oyster quality indicators. The results showed that the root mean square errors (RMSE) for TVB‐N, TVC, and pH were 0.4624, 0.8827, and 0.1941; the coefficients of determination (R2) were 0.8919, 0.8578, and 0.6249. Therefore, the rapid assessment of oyster vitality and quality based on a flexible wireless sensor network is a reliable and effective means.Practical applicationsThis study aims to explore the application of live oyster SCS for rapid quality evaluation. In this article, a quality decision support system based on a flexible wireless sensor network (WSN) and web services is developed to improve the quality and health of live oysters in the supply chain. The use of the multi‐sensor system enables the monitoring and collection of environmental and physiological signals of live oysters throughout the supply chain process. The evaluation of the quality of live oysters using physiological and environmental information collected by flexible wireless sensor networks is a reliable and efficient method. This will provide an effective and reliable quality evaluation and management for the oyster industry.

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Section: Resultsmentioning

confidence: 99%

Enhancing quality assessment of live Pacific oysters (Crassostrea gigas) using flexible sensors real‐time monitoring physiological signals

Liu,

Qu,

Glamuzina

et al. 2024

J Food Process Engineering

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“…Deterioration in the quality of live oysters over time occurs throughout the cold chain process [ 37 ]. TVB-N, TVC, and pH were selected as quality evaluation indicators to explore the quality deterioration process of oysters.…”

Section: Resultsmentioning

confidence: 99%

“…Adopting reasonable methods to assess oyster quality for effective regulation is the most important issue. Deterioration in the quality of live oysters over time occurs throughout the cold chain process [37]. TVB-N, TVC, and pH were selected as quality evaluation indicators to explore the quality deterioration process of oysters.…”

Section: Quality Evaluation Of Oyster Cold Chain Based On the Knowled...mentioning

confidence: 99%

Flexible Sensing Enabled Nondestructive Detection on Viability/Quality of Live Edible Oyster

Liu,

Qu,

Zhang

et al. 2024

Foods

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Environmental and physiological fluctuations in the live oyster cold chain can result in reduced survival and quality. In this study, a flexible wireless sensor network (F-WSN) monitoring system combined with knowledge engineering was designed and developed to monitor environmental information and physiological fluctuations in the live oyster cold chain. Based on the Hazard Analysis and Critical Control Point (HACCP) plan to identify the critical control points (CCPs) in the live oyster cold chain, the F-WSN was utilized to conduct tracking and collection experiments in real scenarios from Yantai, Shandong Province, to Beijing. The knowledge model for shelf-life and quality prediction based on environmental information and physiological fluctuations was established, and the prediction accuracies of TVB-N, TVC, and pH were 96%, 85%, and 97%, respectively, and the prediction accuracy of viability was 96%. Relevant managers, workers, and experts were invited to participate in the efficiency and applicability assessment of the established system. The results indicated that combining F-WSN monitoring with knowledge-based HACCP modeling is an effective approach to improving the transparency of cold chain management, reducing quality and safety risks in the oyster industry, and promoting the sharing and reuse of HACCP knowledge in the oyster cold chain.

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Section: Introductionmentioning

confidence: 99%

“…Additionally, Regulation (EC) No 853/2004 establishes a relaying period of at least 2 months, which is not attractive for mollusc producers from an economic point of view. However, this relaying time, which depends, among other factors, on the mollusc species, water quality and environmental conditions (Chinnadurai et al., 2023; Cook & Ellender, 1986; WHO and FAO, 2018; Richards, 1988; Son & Fleet, 1980), can be shortened by the competent authority based on the food business operator's risk analysis. A priori, the most rapid relaying can be achieved at low shellfish density and clean waters with high salinity (Lee et al., 2008; Richards, 1988).…”

Section: Introductionmentioning

confidence: 99%

Shellfish relaying on longlines in the open sea: A note

Zorita

Solaun

Rodríguez

2023

Aquaculture Fish & Fisheries

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Since bivalves are filter-feeding organisms that can concentrate microorganisms and contaminants from the surrounding environment, there are strict sanitary requirements to ensure food safety. The legislation establishes a time limit of 2 months for shellfish relaying processes, but this study aims to determine whether the purification time can be reduced to make relaying an attractive activity for producers. For this purpose, mussels (Mytilus galloprovincialis) and Pacific oysters (Magallana gigas) were submerged for 6 weeks in a port near untreated urban discharges and then transferred to a relaying site located in open waters off the Basque coast (Southeastern Bay of Biscay). Salmonella spp. and Escherichia coli were analysed at 0, 2, 8, 14 and 21 days of depuration. After 2 days, Salmonella spp. was no longer detected in mussels or Pacific oysters. Geometric mean concentrations of E. coli (13068-14662 most probable number [MPN]/100 g) were high at the beginning of the experiment but decreased progressively. Pacific oysters needed 8 days to show E. coli values below the acceptable threshold for human consumption (230 MPN/100 g), while mussels needed 21 days. Under the studied conditions, the shellfish relaying period in open waters could be reduced while ensuring food safety.

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

Cited by 7 publications

References 51 publications

Enhancing quality assessment of live Pacific oysters (Crassostrea gigas) using flexible sensors real‐time monitoring physiological signals

Enhancing quality assessment of live Pacific oysters (Crassostrea gigas) using flexible sensors real‐time monitoring physiological signals

Flexible Sensing Enabled Nondestructive Detection on Viability/Quality of Live Edible Oyster

Shellfish relaying on longlines in the open sea: A note

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