Levels of Cadmium in White and Brown Meat of Warty Crab (Eriphia verrucosa)

2015 ◽  
Vol 78 (12) ◽  
pp. 2253-2256 ◽  
Author(s):  
A. ARIANO ◽  
A. LO VOI ◽  
M. D'AMBOLA ◽  
R. MARRONE ◽  
D. CACACE ◽  
...  
Keyword(s):  
Microwave Digestion ◽  
Absorption Spectrometry ◽  
Mean Value ◽  
Human Consumption ◽  
Tyrrhenian Sea ◽  
White Meat ◽  
Limit Of Quantification ◽  
Wet Weight ◽  
Southern Tyrrhenian Sea ◽  
Crab Meat

European Union regulations that establish the maximum cadmium (Cd) levels for crab take into account only concentrations found in crab muscle (white meat), mainly from appendages; therefore, other organs and tissues (brown meat) are excluded. The objective of the present study was to evaluate Cd levels in both white and brown crab meat, in order to achieve a more complete assessment of health risk related to human consumption of warty crab. Microwave digestion and atomic absorption spectrometry were used to determine Cd concentrations in warty crab (Eriphia verrucosa) samples collected from the southern Tyrrhenian Sea in Italy. Cd concentrations in all samples of white crab meat were found to be very low (below the limit of quantification), although brown crab meat showed significantly higher Cd concentrations (up to 5.629 mg/kg wet weight; mean value, 1.465 mg/kg). Thus, the consumption of brown meat, common among certain populations of the Mediterranean region, where whole crustaceans are traditionally eaten, substantially increased Cd intake, resulting in alarmingly high estimated weekly intake values.

scholarly journals Determination of Hg in Farmed and Wild Atlantic Bluefin Tuna (Thunnus thynnus L.) Muscle

Molecules ◽  
2019 ◽  
Vol 24 (7) ◽  
pp. 1273 ◽  
Author(s):  
Anna Annibaldi ◽  
Cristina Truzzi ◽  
Oliana Carnevali ◽  
Paolo Pignalosa ◽  
Martina Api ◽  
...  
Keyword(s):  
Microwave Digestion ◽  
Health Benefit ◽  
Absorption Spectrometry ◽  
Bluefin Tuna ◽  
Mediterranean Area ◽  
Human Consumption ◽  
Thunnus Thynnus ◽  
Atlantic Bluefin Tuna ◽  
Wet Weight ◽  
The Mediterranean

Mercury (Hg) is a well-known toxic element, diffused in the environment, especially in the Mediterranean Sea which is rich in cinnabar deposits. Mercury bioaccumulation in fish is of great concern, especially for top-level aquatic predators (e.g., shark, tuna, swordfish) and above all for species of large human consumption and high nutritional value. This work aimed to determine Hg concentrations in farmed and wild Atlantic Bluefin tuna (Thunnus thynnus) caught in the Mediterranean area in order to evaluate the level of Hg bioaccumulation. selenium (Se) content was also determined, since this element is an antagonist of mercury toxicity. Mercury and Se were analysed by atomic absorption spectrometry after microwave digestion of the samples. Hg content in farmed tuna was below the legal limit (1 mg/kg, wet weight, w.w.) for all specimens (0.6 ± 0.2 mg/kg), whereas the wild ones had a content over the limit (1.7 ± 0.6 mg/kg); Se concentration was higher in farmed specimens (1.1 ± 0.9 mg/kg) compared to wild ones (0.6 ± 0.3 mg/kg). A safe seafood could show a Se/Hg ratio >1 and a health benefit value (HBVSe) > 0: farmed tuna had higher values than the wild specimens (Se/Hg 5.48 vs. 1.32; HBVSe 11.16 vs. 0.29). These results demonstrate that for Hg, there is a better risk/benefit ratio in farmed T. thynnus. making it safer than wild tuna.

scholarly journals Toxicity and Organ Distribution of Mercury in Freshwater Fish (Oreochromis niloticus) after Exposure to Water Contaminated Mercury (HgII)

Toxics ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 58
Author(s):  
Suhendrayatna ◽  
Arahman ◽  
Sipahutar ◽  
Rinidar ◽  
Elvitriana
Keyword(s):  
Freshwater Fish ◽  
Oreochromis Niloticus ◽  
Total Concentration ◽  
Absorption Spectrometry ◽  
Dry Weight ◽  
Mean Value ◽  
Organ Distribution ◽  
Mercury Analyzer ◽  
Wet Weight ◽  
Probit Method

The purpose of this study was to investigate the toxicity and the distribution of mercury (Hg) in the main tissues of freshwater fish (Oreochromis niloticus) after being exposed to water containing Hg(II). A sample group of 10 fish, of mean weight 80–100 g wet weight, were exposed to different concentrations of Hg (0.0012; 0.0049; 0.0141; 0.0524; 0.1126; and 0.5110 mg-HgII/L) for 72 hours under controlled conditions using the static method in ponds. A control medium was also prepared in two replications. Mortality of fish was closely monitored, and the test was repeated three times. For the toxicity test, observations were based on behavior, mortality, and anatomical pathology. The methodology was based on the OECD guidelines for testing of chemicals and lethal concentration (LC50) and particularly using the probit method. Thus, the mean value was obtained from two replications and then further calculated by a software (MiniTab® 16 version). Prior to analysis, samples were first lyophilized. The total concentration of Hg accumulation in the fish organs was analyzed using heat-vaporization atomic absorption spectrometry (HV-AAS) and a MA2000 automatic mercury analyzer. Results showed that toxicity (LC50) of freshwater fish was 0.1435 mg-Hg(II)/L. The internal organs showed some pathological changes including pale gills, anemic eyes, and a whitish body color after the exposure. Furthermore, histopathologically, exposure to mercury might also affect other organs, such as gills, liver, and hepatopancreas. Mercury was found in trace amounts, and its accumulation was found to be at least in the gills. Meanwhile, the highest accumulation was found in the muscle tissue with approximately 5.7183 µg/g dry weight. If they are put in order, the mercury accumulation in the tissue organs was varied from the highest to lowest one: Muscle > eye > bone > head > gill. Finally, it can be concluded that the Hg exposure could affect the histopathological condition of the tested fish.

scholarly journals Elemental composition of wild colisa lalia in relation to body size and condition factor from Pakistan

2016 ◽  
Vol 4 (2) ◽  
pp. 202
Author(s):  
Summera Fatima ◽  
Muhammad Naeem
Keyword(s):  
Condition Factor ◽  
Industrial Area ◽  
Mean Value ◽  
Human Consumption ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Three Samples ◽  
Two Samples ◽  
Colisa Lalia ◽  
Wet Weight

Twenty three samples of wild fish Colisa lalia were collected from Nala Daik, a stream in Sialkot. The concentration of Cadmium (Cd), Cobalt (Co), Iron (Fe), Manganese (Mn) and Nickel (Ni) in the whole fish were determined by Flame atomic absorption spectrophotometer to estimate the water contamination and health risk of human consumption in Sialkot region which is a popular industrial area. The detected cobalt in twenty two samples and nickel in eight samples exceeds the permitted limits for fish set by IAEA-407 (Wyse et al. 2003).While the concentration of Cadmium, Iron and Manganese in all samples were below permitted level set by European and other International Organizations. The concentration of Cd, Co, Fe, Mn and Ni was ranging from 0.20-1.71, 0.84-55.38, 82.82-137.63, 1.61-22.73, 2.23-5.98 having mean value as 0.67, 39.31, 139.09, 13.26 and 0.56 (ug/g wet weight) respectively. Regressions analysis was performed for both size and condition factor with metal concentrations. As far as correlation with total length and weight was concerned, a decreasing trend was shown by Cd and Ni while Co, Fe and Mn showed an increasing trend and these correlations were found significant for all these elements. No effect of condition factor was observed in the study on Colisa lalia. Inter-elemental regression showed significant correlations among metals.

scholarly journals Lead, mercury and arsenic content in spices: Black, white and green pepper, black cumin and ginger

2015 ◽  
Vol 13 (3) ◽  
pp. 191-202 ◽  
Author(s):  
Slavica Blagojevic ◽  
Stevan Blagojevic ◽  
Biljana Begovic
Keyword(s):  
Maximum Concentration ◽  
Graphite Furnace ◽  
Microwave Digestion ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Human Consumption ◽  
Arsenic Content ◽  
Mineral Contents ◽  
Green Pepper ◽  
Black Cumin

In order to evaluate the safety of selected commercial spices brands, concentration of lead, mercury and arsenic, as well as moisture and mineral contents were analyzed in samples of dried black and white pepper powders, black, white and green peppercorns, black cumin seeds and ginger powder. Lead (Pb), mercury (Hg) and arsenic (As) concentrations in spice samples purchased from local markets in Belgrade were determined, after a microwave digestion of the samples, by atomic absorption spectrometry (AAS), using the graphite furnace AAS technique (Pb), cold vapor AAS technique (Hg) and hydride generation AAS technique (As). Trace levels of Pb, Hg and As in the selected dried spices samples were in the range 0.10 ppm - 0.79 ppm, 0.01 ppm - 0.10 ppm and 0.01 ppm - 0.51 ppm, respectively. The maximum Pb concentration was determined in the sample of ginger and it was 0.79 ppm, the maximum concentration of Hg was 0.10 ppm, determined in green peppercorns samples, while the maximum concentration of As in powdered black pepper sample was 0.51 ppm. The moisture and mineral contents in the different analyzed spices were in the range 1.70-13.10% and 3.40-6.50%, respectively. According to the obtained results, the concentrations of the analyzed toxic elements, as well as the moisture and mineral content in selected spices, were below the maximum permissible limits declared by the national legislations deemed safe for human consumption.

scholarly journals Quality and safety of some commercial spices brands

2013 ◽  
pp. 1-9 ◽  
Author(s):  
Slavica Blagojevic ◽  
Stevan Blagojevic ◽  
Natasa Pejic ◽  
Biljana Begovic ◽  
Spasenka Gajinov
Keyword(s):  
Heavy Metals ◽  
Graphite Furnace ◽  
Microwave Digestion ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Human Consumption ◽  
Quality And Safety ◽  
Sweet Basil ◽  
Graphite Furnace Aas

In this study, in order to evaluate the quality and safety of selected commercial spices brands, contents of moisture and minerals, as well as the concentration of certain heavy metals (As, Hg and Pb) were determined in oregano, sweet basil, parsley and celery. The spice samples were subjected to microwave digestion, and were analyzed by atomic absorption spectrometry (AAS), using hydride generation AAS technique, cold vapor AAS technique, and graphite furnace AAS technique for determination of As, Hg and Pb, respectively. Maximum concentrations of As and Pb were determined in the same brand sample of celery, and are 0.75 ppm and 0.40 ppm, respectively, while the maximum concentration of Hg in various brands sweet basil samples is 0.05 ppm. According to the results, the contents of moisture and minerals, as well as the concentrations of heavy metals in all selected spices were below the maximum permissible limits declared by the national legislations, and are safe for human consumption.

scholarly journals Determination of Total Metals in Cultivated Oysters (Crassostrea gigas) from the Northwest Coast of Mexico by Microwave Digestion and Atomic Absorption Spectrometry

2001 ◽  
Vol 84 (6) ◽  
pp. 1909-1913 ◽  
Author(s):  
Leticia García-Rico ◽  
Rita E Ramos Ruiz ◽  
Javier Vivian Jiménez
Keyword(s):  
Atomic Absorption ◽  
Crassostrea Gigas ◽  
Microwave Digestion ◽  
Absorption Spectrometry ◽  
Regulatory Agencies ◽  
Northwest Coast ◽  
Human Consumption ◽  
Mean Values ◽  
Pollutant Concentrations

Abstract Bivalves such as oysters often accumulate heavy metals, and therefore can be used to monitor changes of pollutant concentrations in the environment. Cultivated oysters from the northwest coast of Mexico are widely used for human consumption and thus have an important commercial value. Information was gathered on the concentration of these elements in oysters (Crassostrea gigas) cultivated on the coast of Sonora. Oysters were randomly collected from April to October 1997, from 6 different locations (65 individuals per site) in 4 different months. Metals were determined by microwave digestion followed by atomic absorption spectroscopy. The mean values (μg/g fresh weight) for each metal were: Cd, 0.76; Cu, 3.64; Zn, 17.71; Pb, 0.50; As, 0.05; Hg, 0.03; and Se, 0.21. The results show that, except for Cd, concentrations of regulated metals were under the maximum permitted values specified by regulatory agencies of Mexico and were comparable to those reported from other areas.

scholarly journals Metal Concentration in Muscle and Digestive Gland of Common Octopus (Octopus vulgaris) from Two Coastal Site in Southern Tyrrhenian Sea (Italy)

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2401 ◽  
Author(s):  
Andrea Ariano ◽  
Raffaele Marrone ◽  
Rebecca Andreini ◽  
Giorgio Smaldone ◽  
Salvatore Velotto ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Digestive Gland ◽  
Marine Resources ◽  
Octopus Vulgaris ◽  
Human Consumption ◽  
Tyrrhenian Sea ◽  
Coastal Site ◽  
Chemical Contaminants ◽  
Southern Tyrrhenian Sea ◽  
Common Octopus

Octopus vulgaris constitute an important part of most suitable marine resources for human consumption, however, they can represent a source in chemical contaminants intake such as heavy metals. In this scenario, the aim of the study was the evaluation of the concentration of lead (Pb), cadmium (Cd) and mercury (Hg) in the muscle and digestive gland of octopus caught from two different locations along Campania coast (Castellammare di Stabia and Napoli) and the estimation of their weekly human intake derived from the ingestion of octopus. Analysing 38 samples showed a higher concentration of Pb in the muscle of octopus in Castellammare di Stabia than in Napoli. No statistical differences were reported for Cd, Pb and Hg concentrations in the digestive gland of octopus between two sampling sites. Differences were observed between the two tissue types, with a higher level of Cd and Pb observed in the digestive gland compared with the muscle. Noteworthy, the consumption of muscle from Castellammare di Stabia could increase Pb intake in heavy consumers of local octopus. In conclusion, the present work determines that it is important to improve strategies to minimize environmental pollution sources in these areas.

Sign in / Sign up

Export Citation Format

Share Document