scholarly journals Proximate analysis and nutrient content estimation of marine fish species of saint martin’s island in Bangladesh

2021 ◽  
Vol 44 (2) ◽  
pp. 191-195
Author(s):  
Tanhaul Islam ◽  
Mohammad Shoeb ◽  
Md Nazrul Islam ◽  
Rafiza Islam ◽  
Md Mizanur Rhaman ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Fatty Acid ◽  
Protein Content ◽  
Fish Species ◽  
Solid Phase ◽  
Nutrient Content ◽  
Proximate Analysis ◽  
Toxic Heavy Metals ◽  
Fish Samples ◽  
Fatty Acid Compositions

Saint Martin’s Island is a unique coral island in Bangladesh. Locally available fish species (both fresh and dry fish) were collected from the island to study moisture, ash, fat, protein content, fatty acid compositions and heavy metals. Fish oil was extracted from samples by solid phase dispersion method and fatty acid compositions were analyzed by GC-FID. Protein content in fresh fish samples was determined by the micro-Kjeldahl method.  Homogenized samples were digested, filtered and analyzed by AAS for determining toxic heavy metals in the fish samples. The fresh fishes appear to be a good source of dietary protein. Journal of Bangladesh Academy of Sciences, Vol. 44, No. 2, 191-195, 2020

scholarly journals Residual DDTs and Fatty Acid Compositions in Popular Two Sea Fish Samples

2017 ◽  
Vol 65 (1) ◽  
pp. 77-80
Author(s):  
Mohammad Shoeb ◽  
Muhammad Shamim Al Mamun ◽  
Radwan Ebna Noor ◽  
Md Nashir Uddin Al Mahmud ◽  
MIR Mamun ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Unsaturated Fatty Acids ◽  
Solid Phase ◽  
Saturated Fatty Acids ◽  
Internal Standard ◽  
Pampus Argenteus ◽  
Fish Samples ◽  
Sea Fish ◽  
Fatty Acid Compositions

Fatty acid compositions, DDT and its metabolites of popular two sea fishes i.e., Pampus argenteus (Pomfret) and Lates calcarifer (Vernacular) were determined. Lipid was extracted by ethylacetate, saponified and converted to methyl ester using BF3-MeOH to determine fatty acid compositions by GC-FID.For DDTs,edible parts of the fish samples were extracted by solid phase dispersion method, cleaned up with concentrated H2SO4 and finally analyzed by GC-ECD. The LOD and LOQ for DDE, DDD, 2, 4´-DDT and 4, 4´-DDT were found to be 0.39, 0.39, 1.56, 1.56 and 1.36, 1.36, 4.89 and 4.89 μg/kg respectively. Internal Standard CB53 (0.25mg/g) was used to determine the recovery of the experiment and was within range of 77.48-92.35 %. The residual amount of DDT (2, 4´-DDT+4, 4´-DDT), DDE and DDD in pomfret and vernacular were found to be in the range of 13.56-81.05, 3.86-21.08, 4.32-35.4, and 23.44-85.59, 2.90-5.81 and 6.33-12.44 μg/kg respectively. The ratios of DDT/ΣDDTs in pomfret and vernacular were 0.675 and 0.773 respectively. Among the saturated fatty acids, palmitic acid was predominant (62.84% for pomfret and 41.81% for vernacular) whereas among the unsaturated fatty acids oleic acid was predominate and higher in pomfret (15.11 %). Dhaka Univ. J. Sci. 65(1): 77-80, 2017 (January)

scholarly journals Fatty Acid Compositions and Heavy Metals in Marine Fish Samples of Banglades

2020 ◽  
pp. 46-51
Author(s):  
Khandoker Tahmina Tasnim ◽  
Sunjida Akter ◽  
Mohammad Shoeb ◽  
Waziha Farha
Keyword(s):  
Heavy Metals ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Marine Fish ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Freeze Dried ◽  
Fish Samples ◽  
The Individual ◽  
Fatty Acid Compositions

This study investigated the fatty acid compositions, moisture content, ash content and heavy metals in ten marine fish samples namely, Lates calcarifer, Tenualosa toli, Pampus chinensis, Laptoracanthus savala, Harpodon nehereus, Johnius angentatus, Awaous guamensis, Setipinna phasa, Sillogenopsis panigus, Sardina pilchardus collected from Kuakata sea beach, Bangladesh. Analysis was carried out according to AOAC (1990) method. Fatty acid compositions were determined by saponification and esterification followed by identification and quantitation by gas chromatograph equipped with flame ionization detector (GC-FID). Ash, fat and moisture contents of the fish samples were in the range of 3.25-6.27%, 0.89-6.08% and 71.47-90.16%, respectively. The amount of saturated fatty acids (SFA) varied in the range of 55.53-89.04% whereas unsaturated fatty acids (USFA) were of 16.45-44.48%. Lauric (3.93-15.19%), palmitic (40.27-67.34%) and stearic acids (5.18-22.88%) were predominant among the individual SFA compositions, whereas oleic (0.91-34.26%), linoleic (0.69-9.95%) and palmitoleic acids (7.66-19.05%) were predominant among USFA in these species. Samples were freeze dried, digested and finally analysed by atomic absorption spectroscopy (AAS) for the presence of Pb, Cu, Zn, Mn and the range of these metals were 0.5-1.9, 2.4-30.4, 3.2-10.5, 0.3-8.5 mg.kg-1, respectively. However, the values were below the permitted level set by FAO/WHO 2004.

Organic and metallic pollutants in water treatment and natural wetlands: a review

2012 ◽  
Vol 65 (1) ◽  
pp. 76-99 ◽  
Author(s):  
K. Haarstad ◽  
H. J. Bavor ◽  
T. Mæhlum
Keyword(s):  
Heavy Metals ◽  
Aquatic Plants ◽  
Metal Uptake ◽  
High Capacity ◽  
Treatment Wetlands ◽  
The European Union ◽  
Toxic Heavy Metals ◽  
Limit Values ◽  
Fish Samples ◽  
Other Substances

A literature review shows that more than 500 compounds occur in wetlands, and also that wetlands are suitable for removing these compounds. There are, however, obvious pitfalls for treatment wetlands, the most important being the maintenance of the hydraulic capacity and the detention time. Treatment wetlands should have an adapted design to target specific compounds. Aquatic plants and soils are suitable for wastewater treatment with a high capacity of removing nutrients and other substances through uptake, sorption and microbiological degradation. The heavy metals Cd, Cu, Fe, Ni and Pb were found to exceed limit values. The studies revealed high values of phenol and SO4. No samples showed concentrations in sediments exceeding limit values, but fish samples showed concentrations of Hg exceeding the limit for fish sold in the European Union (EU). The main route of metal uptake in aquatic plants was through the roots in emergent and surface floating plants, whereas in submerged plants roots and leaves take part in removing heavy metals and nutrients. Submerged rooted plants have metal uptake potential from water as well as sediments, whereas rootless plants extracted metals rapidly only from water. Caution is needed about the use of SSF CWs (subsurface flow constructed wetlands) for the treatment of metal-contaminated industrial wastewater as metals are shifted to another environmental compartment, and stable redox conditions are required to ensure long-term efficiency. Mercury is one of the most toxic heavy metals and wetlands have been shown to be a source of methylmercury. Methyl Hg concentrations are typically approximately 15% of Hgt (total mercury). In wetlands polycyclic aromatic hydrocarbons (PAH), bisphenol A, BTEX, hydrocarbons including diesel range organics, glycol, dichlorodiphenyltrichloroethane (DDT), polychlorinated biphenyls (PCB), cyanide, benzene, chlorophenols and formaldehyde were found to exceed limit values. In sediments only PAH and PCB were found exceeding limit values. The pesticides found above limit values were atrazine, simazine, terbutylazine, metolachlor, mecoprop, endosulfan, chlorfenvinphos and diuron. There are few water quality limit values of these compounds, except for some well-known endocrine disrupters such as nonylphenol, phtalates, etc.

scholarly journals Evaluation of the Nutrient Composition of Fruits Selected From Different Markets in Lagos, Nigeria Together With Their Heavy Metals Contents

2019 ◽  
Vol 2 (4) ◽  
Keyword(s):  
Heavy Metals ◽  
Trace Metals ◽  
Zinc Content ◽  
Proximate Analysis ◽  
Nutrient Composition ◽  
Toxic Heavy Metals ◽  
Crude Fibre ◽  
Fruit Samples ◽  
The Government ◽  
The Right

Introduction: Fruits are a form of staple food for humans obtained naturally. They contain various quantities of essential nutrients in the right proportion. Intake of fruits in the diet is usually a very heathy lifestyle as fruits prevents disease and keeps us healthy. Ingestion of trace amount of heavy metals through fruits leads to bioaccumulation producing serious health hazards. The aim of the study is to investigate the amount of heavy metals in fruits obtained from different markets in Lagos, Nigeria. Materials and methods: Five trace metals and five toxic metals were analyzed in different fruit samples obtained from Lagos, Nigeria using the atomic absorption Spectrophotometer. Proximate analysis was carried out to determine the nutrient composition of the fruits. Result: The result showed that 80% of the composition of fruits is made of moisture content. The carbohydrate content in fruits is about 10% while crude fibre makes up about 2%. From the analysis of trace metals carried out, paw paw (7.71 mg/kg) had the highest amount of zinc content followed by pineapple (6.60 mg/kg). Iron is high in pears (3.12 mg/kg) and Banana (2.26 mg/kg) while it is lowest in apple (0.59 mg/kg). Copper and Mn ranged from 0.40 t0 2.20 mg/kg. Analysis of the toxic heavy metals showed that lead ranged from 0.0 mg/kg to 0.12 mg/kg in carrot. This is high. Cd range from 0.0 in orange to 0.14mg/kg in apples. Cr ranged from 0.01mg/kg in healthyto 0.07mg/kg in orange. Nickel is highest in banana (9.21mg/kg) and lowest in water melon (0.37mk/kg). Conclusion: Bioaccumulation of these heavy metals over time can be hazardous to health. It is better for the government to check the sources of these heavy metals and remediate them so as to prevent the exposure of the populace to diseases.

scholarly journals Keban Baraj Gölü Örencik Mevkiinden (Elazığ) Yakalanan Capoeta trutta’nın Kas Dokusundaki Bazı Ağır Metal Düzeylerinin Karşılaştırılması

2021 ◽  
Vol 9 (7) ◽  
pp. 1250-1257
Author(s):  
Özgür Canpolat ◽  
Metin Çalta
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Muscle Tissue ◽  
Fish Species ◽  
Human Consumption ◽  
Potential Health ◽  
Fish Samples ◽  
Metal Levels ◽  
Biological Aspects ◽  
The Relationship

Keban Dam Lake is the second largest dam lake in Turkey. In addition, it has the feature of being one of the most important dam lakes in our country in terms of both aquaculture potential and electricity generation. In this study, fish samples belong to Capoeta trutta caught from Örencik region of Keban Dam Lake were used. The concentrations of some heavy metals (copper, iron, zinc, chromium, nickel, cadmium, arsenic and mercury) in muscle of Capoeta trutta and the potential health risk from consumption of this fish species were examined. In addidion, the relationship between the heavy metal levels and some biological aspects of fish (weight, length and sex) were determined. As a result of the study, it was determined that the most and the least accumulated heavy metals in the muscle tissue of Capoeta trutta were zinc and cadmium respectively. The concentration of heavy metals showed differences according to weight, length and sex of fish. The results were found indicated that heavy metal levels in the muscle tissue of Capoeta trutta are below the tolerable values recommended by EPA, WHO and FAO. Therefore, there is not any risk for human consumption of this fish species.

Effects of season and location of catch on the fatty acid compositions of some Australian fish species

1994 ◽  
Vol 51 (3) ◽  
pp. 295-305 ◽  
Author(s):  
Sharyn G. Armstrong ◽  
S.Grant Wyllie ◽  
David N. Leach
Keyword(s):  
Fatty Acid ◽  
Fish Species ◽  
Australian Fish ◽  
Fatty Acid Compositions

scholarly journals The Contents af Fatty Acid, Cholestrol, and Description of Tissue in Fresh and Boiled Eel

2014 ◽  
Vol 17 (2) ◽  
Author(s):  
Agoes Mardiono Jacoeb ◽  
Pipih Suptijah ◽  
Rezki Kamila
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Saturated Fatty Acids ◽  
Nutrient Content ◽  
Proximate Analysis ◽  
Tissue Structure ◽  
Aquatic Biota ◽  
Monopterus Albus ◽  
Boiling Process ◽  
High Nutrient

Eel (Monopterus albus) is an aquatic biota that have a high nutrient content such as fatty acids and cholesterol. The purpose of this research was to determine the chemical composition, fatty acid, cholesterol, and description of tissue in fresh dan boiled eel. The research was carried out in several steps include sampling, sample preparation, morphometric and yield calculations, boiling eel for 20 minutes at 100ºC. Analysis performed in fresh and boiled eel was proximate analysis, fatty acids, cholesterol, and observation of tissue structure. The highest content of saturated fatty acids (SFA) in fresh eel was palmitic acid 13.79%, the highest content of monounsaturated fatty acid (MUFA) was oleic acid 19.45%, the highest content of polyunsaturated fatty acid (PUFA) was linoleic acid 7.42%. The content of fatty acid and cholesterol in eel has changed overall due to the boiling process. The content of cholesterol were 60 mg/100 g (in fresh eel) and 56.32 mg/100 g (in boiled sample). The structure of eel’s tissue changed due the boiling process.<br />Keywords: cholesterol, eel (Monopterus albus), fatty acid, tissue structure

scholarly journals Pengaruh Penggunaan Ekstrak Kunyit (Curcuma domestica) Terhadap Mutu Kerupuk Cumi (Loligo sp.) [Effect of Using Turmeric Extract (Curcuma domestica) on The Quality of Squid Crackers (Loligo sp.)]

2019 ◽  
Vol 11 (1) ◽  
pp. 55
Author(s):  
Jumiati Jumiati ◽  
Dewi Ratnasari ◽  
Achmad Sudianto
Keyword(s):  
Protein Content ◽  
Nutrient Content ◽  
Proximate Analysis ◽  
Plate Count ◽  
Test Analysis ◽  
Total Plate Count ◽  
Turmeric Extract ◽  
Randomized Design ◽  
Completely Randomized Design

AbstrakKerupuk cumi saat ini cukup banyak diminati masyarakat di semua kalangan karena kandungan gizi cumi yang tinggi terutama kandungan proteinnya yaitu 17,9 g/100 g cumi segar. Penelitian ini bertujuan untuk mengetahui mutu kerupuk cumi (Loligo sp.) yang terbaik dengan penambahankunyit(Curcuma domestica) yang berbeda. Analisis yang dilakukan meliputi: analisa proksimat (kadar : air, abu, lemak, protein, dan karbohidrat), dan uji Total Plate Count (TPC Penelitian ini merupakan penelitian eksperimental menggunakan Rancangan Acak Lengkap (RAL), dengan empat perlakuanyaitu: tanpa pemberian ekstrak kunyit (O) , pemberian dosis 12,5% (A), 15% (B) dan 17,5% (C) masing-masing enam ulangan. Hasil analisa uji proksimat, penggunaan ekstrak kunyit pada pembuatan kerupuk cumi berpengaruh nyata terhadap mutu kerupuk cumi dengan pemakaian ekstrak kunyit terbaik yaitu: dosis kunyit 12,5% (kadar air : 9,622%), dosis kunyit 17,5% ( kadar lemak: 4,765%), dosis kunyit 17,5% (kadar protein : 18,112%), dosis kunyit 12,5% (kadar karbohidrat : 68,253%), dan dosis kunyit 12,5% (kadar abu: 1,278%). Penggunaan ekstrak kunyit berpengaruh sangat nyata terhadap TPC pada kerupuk cumi, perlakuan yang paling baik adalah perlakuan C dengan nilai TPC sebesar 28.350 koloni/ gram. Penggunaan esktrak kunyit sebagai bahan anti bakteri pada proses pembuatan kerupuk cumi mampu menghambat aktivitas bakteri dan mempunyai kandungan gizi yang cukup tinggi. AbstractSquid crackers are currently quite popular with people in all circles because of the high nutritional content of squid, especially the protein content of 17.9 g / 100 g of fresh squid. This study aims to determine the quality of the best squid crackers (Loligo sp.) by adding different turmeric (Curcuma domestica). The analysis carried out included: Proximate analysis (levels: water, ash, fat, protein, and carbohydrates), and Total Plate Count (TPC) tests. This study used an experimental method, completely randomized design (CRD), with 4 treatments without the administration of turmeric extract (O), dosing 12.5% (A), 15% (B) and 17.5% (C) respectively 6 repetitions. The results of the proximate test analysis, the use of turmeric extract on the making of squid crackers had a significant effect on the quality of squid crackers with the use of the best turmeric extract: 12.5% turmeric dose (moisture content: 9.622%), 17.5% turmeric dose ( fat content: 4.765%), turmeric dosage 17.5% (protein content: 18.112%), 12.5% turmeric dose (carbohydrate level: 68.253%), and 12.5% turmeric dose (ash content: 1.278%). The use of turmeric extract has a very significant effect on TPC on squid crackers, the best treatment is treatment C with a TPC value of 28,350 colonies / gram. The use of turmeric extract as an anti-bacterial ingredient in the process of making squid crackers is able to inhibit bacterial activity and has a fairly high nutrient content.

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