A practical quality index method (QIM) developed for aquacultured rainbow trout (<i>Oncorhynchus mykiss</i>)

Diler, Abdullah; Genç, İsmail Yüksel

doi:10.1080/10942912.2018.1466326

Cited by 22 publications

(9 citation statements)

References 30 publications

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“…QIM scores of all collected mullets fishes were lower value (less than 1) which contains good freshness condition of fishes. These results were in agreement with Solanki et al (2016) who determined fish freshness for different fish species at Veraval Fish Landing Centre, India and with Diler and Genç (2018) who measured QIM for aquaculture rainbow trout.…”

Section: Resultssupporting

confidence: 91%

Heavy Metals in Grey Mullet (Mugil cephalus) Fish Collected From Barseque Fish Farm, El-Behera Governorate-Egypt

Helmy

Srour

Abdalla

2020

Journal of the Advances in Agricultural Researches

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Heavy metals are the most harmful contaminants which affect people health.The research objective of the present study was to determine the levels of cadmium (Cd), lead (Pb), chromium (Cr), copper (Cu) and zinc (Zn) in grey mullet fish collected from Barseque fish farm (Behera Governorate, Egypt). Moreover, heavy metals were determined in irrigation and Barseque farm water. Quality Index Method (QIM) scores showed good freshness condition of collected fresh fish. Variations in chemical composition of grey mullet fish collected from fish farm during winter and summer were noticed. Moisture content highly significant decreased in summer than in winter while fat increased in summer than in winter. Electric conductivity significantly increased in irrigation and farm water in summer, while there was no difference in pH. The results of heavy metals showed that the levels of Cd, Pb, Cr, Cu and Zn in different fish organs(liver, gills and muscles) were significantly higher in summer than winter, it was in the increasing order of liver>gills> muscles. Cadmium and lead concentrations in irrigation water and farm water that detected during winter and summer season were higher than the maximum permissible limit according to WHO/FAO and Egyptian Ministry of Water Resources and irrigation, law 48/1982.Cadmium, copper, lead and chromium concentrations in irrigation water and farm water showed no significant difference between winter and summer but zinc were significantly higher in summer than winter. Heavy metal concentrations that measured during winter and summer seasons in grey mullet fish organs were lower than the minimum acceptable daily intake recommended by WHO. Generally, the values of metals in the fish muscles were accepted by the international legislation limits and are safe for human consumption. On the other hand, it was strongly recommended not to eat head with gills or livers of fish. Conclusively, a regular monitoring program of heavy metal is recommended for protecting these organisms, and to reduce the environmental risks.

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Section: Resultssupporting

confidence: 91%

Heavy Metals in Grey Mullet (Mugil cephalus) Fish Collected From Barseque Fish Farm, El-Behera Governorate-Egypt

Helmy

Srour

Abdalla

2020

Journal of the Advances in Agricultural Researches

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“…Each point corresponds to 24 data values. Average QDA score (%) TVC (log 10 CFU/cm 2 ) and time for salmon (Sveinsdottir et al, 2002(Sveinsdottir et al, , 2003, blackspot seabream (Sant'Ana et al, 2011) and rainbow trout (Diler and Genç, 2018). In this study, the IMP concentration decreased in the salmon (2.8 to 0.3 mg/g) and cod (8.3 to 1.0 mg/100 g) over the 10 days aerobic storage at 2°C.…”

Section: Resultsmentioning

confidence: 51%

Sensory and ATP derivative-based indicators for assessing the freshness of Atlantic salmon (Salmo salar) and cod (Gadus morhua)

Fogarty

Smyth

Whyte

et al. 2019

Irish Journal of Agricultural and Food Research

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To estimate the shelf life of fresh fish, the processor must know the period of time between catch/harvest and arrival at the processing plant. This information is not always available, necessitating the provision of methods to estimate the time since catch or harvest. The objectives of this study were therefore to develop and/or validate sensory and ATP derivative-based methods for rapidly assessing the freshness of fish. A quality index method (QIM; raw fish) and a quantitative descriptive analysis (QDA; cooked fish) were developed and validated (against bacterial count [total viable count (TVC)] and time) for salmon (Salmo salar) and cod (Gadus morhua). The production of inosine monophosphate (IMP), inosine and hypoxanthine (Hx) and associated ratios (IMP/Hx, K 1 -value or H-value) were also investigated for use as freshness markers. There was a linear relationship between QIM and TVC (R 2 = 0.93 for salmon and R 2 = 0.89 for cod), QIM and time (R 2 = 0.96 for salmon and R 2 = 0.98 for cod), QDA and TVC (R 2 = 0.93 for salmon and R 2 = 0.77 for cod) and QDA and time (R 2 = 0.94 for salmon and R 2 = 0.87 for cod), suggesting that the QIM and QDA schemes developed could be used to monitor/assess freshness. The H-value also increased linearly with TVC (R 2 = 0.88 for salmon and R 2 = 0.89 for cod) and time (R 2 = 0.93 for salmon and R 2 = 0.84 for cod). It was therefore concluded that both the QIM/QDA approach and monitoring ATP degradation, specifically expressed as the H-value, could be used as rapid methods to assess the freshness of salmon and cod arriving at the processing plant. KeywordsAtlantic cod (Gadus morhua) • Atlantic salmon (Salmo salar) • ATP derivatives • quality index method • quantitative descriptive analysis † Corresponding author: Declan J. Bolton

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“…QIM methodologies are being widely applied to various fish species [36,37,38,39] and products [40,41], reflecting the importance of the methodology for fish freshness evaluation and shelf-life prediction. Besides the expected differences between different species, it is also possible to obtain variations in the values of the evaluation parameters for the same fish species, mainly due to storage conditions or type of product [42,43,44,45], reflecting the expected variance that other methods do not incorporate (i.e., EU scheme).…”

Section: Discussionmentioning

confidence: 99%

Freshness Assessment and Shelf-Life Prediction for Seriola dumerili from Aquaculture Based on the Quality Index Method

2019

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Fish and fish-based products are easily perishable foods due to different factors, including fragile organization, abundant endo-enzymes, psychrophilic bacteria, and impact of pre-harvest operations, that contribute to reducing its value. Therefore, a timely effective method for fish freshness and shelf-life evaluation is important. In this context, this study aimed to develop a sensory scheme based on the Quality Index Method (QIM) (sensory table and point system) for freshness monitorization and shelf-life prediction for Seriola dumerili from aquaculture in Madeira Island. Evaluation of appearance, texture, eyes, and gills was performed during 20 days of storage on ice (0 ± 1 °C). The shelf-life prediction was supported by the analysis of microorganisms (total viable colonies, TVC, counts), texture (Torrymeter), and production of trimethylamine (TMA), evaluated by HS-SPME–GC–MS and validated according to Association of Official Analytical Chemists AOAC guidelines. The result is a QIM scheme with 25 demerit points, where zero indicates total freshness. From the integration of sensory analysis, microbial growth at the time of rejection (TVC, 108 cfu/cm2 and H2S producers, 107 cfu/cm2), texture (Torrymeter value < 8), and TMA analyses (>12.5 mg/100 g), shelf-life was estimated as 12 days (±0.5 days). The obtained results show the high-throughput potential of the developed method for fish freshness assessment and shelf-life prediction. This QIM scheme is a secure way to measure quality and provide users with a reliable standardized fish freshness measure.

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A practical quality index method (QIM) developed for aquacultured rainbow trout (Oncorhynchus mykiss)

Cited by 22 publications

References 30 publications

Heavy Metals in Grey Mullet (Mugil cephalus) Fish Collected From Barseque Fish Farm, El-Behera Governorate-Egypt

Heavy Metals in Grey Mullet (Mugil cephalus) Fish Collected From Barseque Fish Farm, El-Behera Governorate-Egypt

Sensory and ATP derivative-based indicators for assessing the freshness of Atlantic salmon (Salmo salar) and cod (Gadus morhua)

Freshness Assessment and Shelf-Life Prediction for Seriola dumerili from Aquaculture Based on the Quality Index Method

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