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  • Lipids
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  • 1
    Publication Date: 2021-05-19
    Description: : تمثل البطارخ، مبايض سمك البوري (Mugil cephalus) والكوربين (Argyrosomus regius) المملحة و المجففة، ثروة هامة لمنطقة نواكشوط ولموريتانيا. لمعرفة مقدار الطاقة في هذه البطارخ، قمنا بدراسة كمية لمكوناتها الطاقية : الدهنيات والبروتينات و السكريات و كيفية للدهنيات. بينت هذه الدراسة أن البطارخ تحتوي على نسب ضئيلة من السكريات. ففي بطارخ الكوربين لاتتجاوز 1,95 % و3,29 %في بطارخ البوري. في هذه الأخيرة ترتفع نسبتي البروتينات و الدهنيات إلى 44,44 % و31,68 % بينما في بطارخ الكوربين تصل هاتين النسبتين إلى%55,11 و15,86 %. كما تبين أن البطارخ غنية بالطاقة حيث توجد بها 493,80 كيلوكالوري/100غ في بطارخ البوري و 384,27 كيلوكالوري/100غ في بطارح الكوربين وكل غرام من بطارخ البوري تحتوي على 28,1 ملغ أحماض دهنية و19,7 أحماض دهنية ببطارخ الكوربين . تنقسم هذه الأحماض إلى ثلاث مجموعات أساسية مختلفة كما وكيفا وهي: - الأحماض الدهنية المشبعة17,9 : % ببطارخ البوري و1,8 % ببطارخ الكوربين. - الأحماض الدهنية أحادية عدم التشبع : % 39,4 ببطارخ البوري و 40,65 % ببطارخ الكوربين. - الأحماض الدهنية متعددة عدم التشبع : 28,8 % ببطارخ البوري و35,89 % ببطارخ الكوربين. نستنتج أن كمية الدهنيات ببطارخ البوري أكثر من نظيرتها بالكوربين، بينما نرى العكس بالنسبة لكمية البروتينات حيث نرى أنها أكثر ببطارخ الكوربين أما كمية الطاقة فتبدو أعلى ببطارخ البوري من بطارخ الكوربين كما تحتوي هذه الأخيرة على أحسن نوع
    Description: La boutargue est constituée par les ovaires salés et séchés des mulets à grosse tête (Mugil cephalus) et de la courbine (Argyrosomus regius) représente une ressource importante pour la région de Nouakchott et pour la Mauritanie. Pour déterminer la valeur énergétique dans les boutargues, nous avons effectué des dosages des protéines, des glucides, des lipides et des études analytiques des acides gras et des lipides. Les analyses ont révélé que la boutargue contient, par rapport aux autres éléments d’énergie, très peu de glucide : 3,29% dans la boutargue du mulet et 1,95% dans celle de la courbine. Alors que les teneurs en protéines et lipides sont importantes et sont respectivement de 44,44% et 31,68% dans la boutargue du mulet et de 55,11% et 15,86% dans celle de la courbine. La boutargue est d’une grande valeur nutritionnelle. En effet, la boutargue du mulet contient 493,82 kcal/100g, alors que celle de la courbine contient 384,27 kcal/100g. En outre, chaque gramme de boutargue du mulet contient 28,1mg d’acides gras, tandis que celle de la courbine contient 19,7mg. Les acides gras trouvés dans les boutargues étudiées sont subdivisés en 3 groupes: - Les acides gras saturés : 17,9% dans la boutargue du mulet et 1,8% dans celle de la courbine, - Les acides gras monoinsaturés : 39,4% dans la boutargue du mulet et 40,65% dans celle de la courbine, - Les acides gras polyinsaturés : 28,8% pour la boutargue du mulet et 35,89 % dans celle de la courbine. La quantité lipidique du mulet est supérieure à celle de la courbine, mais la quantité de protéine est inférieure. Le taux d’énergie de la boutargue du mulet est supérieur à celui de la courbine. Néanmoins, cette dernière contient plus d’acides gras mono et poly insaturés que celle du mulet.
    Description: The boutargue is consisted of salted and dried ovaries of the mullet (Mugil cephalus) and black umber (Argyrosomus regius) is an important resource for the region of Nouakchott and Mauritania. In order to determine the energetic value of the boutargue, we measured the proteins, the carbohydrates and the lipids contents, in addition to the analytical studies of the fatty acids. These experiments revealed that the boutargue contains very low carbohydrate levels: 3,29% for the mullet and 1,95% for the black umber. The protein and the lipid contents were 44,44% and 31,68% respectively for the mullet while, they were respectively 55,11% and 15,86% for the black umber. This study showed the good nutritional quality of boutargue. In fact, the boutargue of the mullet contains 493,82kcal/100g, where as that of the black umber contains 384,27kcal/100g. Each gram of boutargue of the mullet contains 28,1mg of fatty acids and while that of the black umber contain 19,7mg of fatty acids. The fatty acids found in the studied boutargues were subdivided in three groups: - Saturated fatty acids: 17,9% for the mullet and 1,8% for the black umber, - Unsaturated mono fatty acids: 39,4% for the mullet and 40,65% for the black umber, - Polyunsaturated fatty acids: 28,8% for the mullet and 35,89 % for the black umber, As compared to the black umber's boutargue, the mullet boutargue contains high lipid quantity. Where as, the quantity of protein in the black umber’s boutargue was higher as compared to the mullet's boutargue. The energetic rate of the mullet boutargue is higher than that of the black umber. But the black umber boutargue contains more polyunsaturated and unsaturated mono fatty acids.
    Description: Published
    Description: Mugilcephalus, argyosomus regius, boutargue, mulet, courbine, glucides, protéines, lipides, acides gras, Mauritanie.
    Keywords: Chemical composition ; Fatty acids ; Carbohydrates ; Nutritive value ; Proteins ; Lipids ; Chemical composition ; Proteins ; Lipids ; Fatty acids ; Carbohydrates ; Food fish ; Nutritive value
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 2
    Publication Date: 2021-05-19
    Description: The boutargue is the salty and dried ovary of the mullet (Mugil cephalus) from Nouakchott (Mauritania) and Tunis (Tunisia). In order to know the nutritional quality of the boutargue, we have used an analytic analysis and dosages of lipids and their fat acids. For this study, we used two different methods of extraction of the lipids: method of Folch modified by Bligh and Dyer and the method of Soxhlet. These experiences show that the boutargue of mullet is rich in lipids, 30.9% in Nouakchott (Atlantic Ocean) and 27,4% in Tunis (Mediterranean Sea). The boutargue is with good nutritional quality. Indeed, each gram of boutargue contains 28,1 mg of fatty acids in Nouakchott and 19,7 mg in Tunisia. Theses fatty acids are subdivide in 3 essential groups: - Fatty acid saturated 17,9% in Atlantic Ocean and 2,8% in Mediterranean Sea. - Fatty acid monounsaturated 39, 4% in Atlantic Ocean and 41,4% in Mediterranean Sea. - Fatty acids polyunsaturated 28, 8% in Atlantic Ocean and 39 % in Mediterranean Sea. The quantity of lipids in Atlantic Ocean boutargue is superior to Mediterranean Sea boutargue but the quality of lipids in Mediterranean Sea boutargue is superior to Atlantic Ocean boutargue
    Description: تمثل البطارخ بيض سمك البوري (Mugil cephalus) المملحة و المجففة لمنطقتي نواكشوط (موريتانيا) و تونس (تونس). لمعرفة الجوانب البيوكيميائية و الغذائية لهذه البطارخ، قمنا بدراسة تحليلية كمية و كيفية للدهنيات. فاستخدمنا طريقتين مختلفتين لاستخلاص الدهون، هما طريقة فولش المعدلة من طرف بليغر ودير و طريقة سوكسلي. تبين أن البطارخ غنية بالدهنيات30,9 % بمنطقة نواكشوط (المحيط الأطلسي) و27,4 % بمنطقة تونس (البحر الأبيض المتوسط). يحتوي كل غرام من بطارخ منطقة نواكشوط على 28,1 ملغ من الأحماض الدهنية بينما لا تتعدى هذه النسبة 19,7 ملغ من الأحماض الدهنية ببطارخ منطقة تونس. تنقسم هذه الأحماض الى ثلاث مجموعات أساسية مختلفة كما وكيفا وهي: - الأحماض الدهنية المشبعة تصل إلى17,9 % ببطارخ المحيط الأطلسي بينما لا تتجاوز2,8 % ببطارخ البحر الأبيض المتوسط. - الأحماض الدهنية أحادية عدم التشبع بنسبة تصل إلى %39,4 ببطارخ المحيط الأطلسي بينما ترتفع هذه النسبة إلى 41,4 % ببطارخ البحر الأبيض المتوسط. - الأحماض الدهنية متعددة عدم التشبع بنسبة تصل إلى 28,8 % ببطارخ المحيط الأطلسي بينما ترتفع هذه النسبة إلى39 %.ببطارخ البحر الأبيض المتوسط. لقد بينت هذه الدراسة أن بطارخ المحيط الأطلسي﴿ نواكشوط- موريتانيا﴾، توجد بها نسبة من الدهنيات أكثر من نظيرتها بالبحر الأبيض المتوسط ﴿تونس- تونس﴾، بينما تمتاز هذه الأخيرة ﴿بطارخ البحر الأبيض المتوسط﴾ بجودة أكثر لدهنياتها بالمقارنة مع الأولى ﴿ بطارخ المحيط الأطلسي﴾.
    Description: La boutargue est constituée par les ovaires salés et séchés des mulets à grosse tête (Mugil cephalus) de la région de Nouakchott (Mauritanie) et de la région de Tunis (Tunisie). Pour savoir la quantité et la qualité de lipides dans cette boutargue nous avons effectué des études analytiques et des dosages des lipides et des acides gras de ceux-ci. Nous avons procédé par deux méthodes d’extraction des lipides : la méthode de Folch modifiée par Bligh et Dyer et la méthode de Soxhlet . Ces expériences ont révélé que la boutargue est très riche en lipides : 30,9% dans la région de Nouakchott (Océan Atlantique) et 27,4% dans la région de Tunis (Mer Méditerranéenne) qu’il est de bonne qualité nutritionnelle et que chaque gramme de boutargue contient 28,1 mg des acides gras dans la région de Nouakchott et 19,7 mg dans la région de Tunis. Ils sont subdivisés en 3 groupes essentiels : - acides gras saturés 17,9% dans l’Océan Atlantique et 2,8% dans la Mer Méditerranéenne. - acides gras mono insaturés 39,4 % dans l’Océan Atlantique et 41,4% dans la Mer Méditerranée. - acides gras polyinsaturés 28,8% dans l’Océan Atlantique et 39 % dans la Mer Méditerranée. La quantité lipidique de la boutargue atlantique est supérieure à celle de la Méditerranée et la qualité de la boutargue Méditerrané est meilleure que celle de l’Atlantique.
    Description: Published
    Keywords: Boutargue ; Mauritania ; Tunisia ; Mugil cephalus ; Lipides ; Acides gras ; Mulet ; Fatty acids ; Nutritive value ; Lipids ; Comparative studies ; Fatty acids ; Lipids ; Nutritive value ; Dried fish
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
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  • 3
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    In:  http://aquaticcommons.org/id/eprint/23138 | 18721 | 2018-06-18 17:34:35 | 23138 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-13
    Description: Total lipids, fatty acid composition and heavy metal content of Sardina pilchardus fillet samples captured in February 2014 in Beni saf, Mostaganem, Ghazaouet, Algiers and Jijet coast were evaluated. Total lipid content was related to the five sites of catch (p〈0.05), ranging from 7.18 g 100g^-1 for Algiers to 10.07g 100g^-1 for Beni saf. The fatty acid composition of S. pilchardus shows a high content of polyunsaturated fatty acids (PUFAs) dominated by n-3 fatty acids eicosapentaenoic acid (EPA C20:5 n-3) and docosahexaenoic acid (DHA C22:6n-3) with maximum rates of 15.75% and 33.42%, respectively (p〈0.05). The saturated fatty acid (SFA) content was important in different samples of sardines, ranging from 35.50% to 41.32% according to sites of capture (p〈 0.05). Concerning the heavy metals, the levels of lead (Pb) ranged from 0.013mg to 0.024mg, however those of mercury (Hg) varied from 0.080 mg to 0.130 mg (p〈0.05), which affects the health value of the fish species.
    Keywords: Biology ; Fisheries ; Pollution ; Algerian coast ; Sardina pilchardus ; Fatty acids ; Lipids ; Heavy metals ; Algeria
    Repository Name: AquaDocs
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  • 4
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23226 | 19325 | 2018-03-18 14:51:17 | 23226 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The proximate composition and amino acids assay of smoked Clarias gariepinus and Oreochromis niloticus were determined using standard procedures. The mean proximate composition of Oreochromis niloticus are 8.9% moisture, 16.00% lipids, 5.6% ash, 44.5% crude protein, 0.42% crude fiber and 24.9% NFE while Clarias gariepinus has 8.19% moisture, 15.55% lipids, 4.725 ash, 40.46% crude protein, 0.50% crude fiber and 30.58% NFE. There is therefore a nutrient variation between the 2 species of fish Oreochromis niloticus has higher crude protein, lipids, moisture and ash content than Clarias gariepinus.The amino acids profile shows that both fishes have 17 amino acids. Apart from Tryptophan, the following essential amino acids Histidine, Methionine, Threonine, Isoleucine, Leucine, Lysine, Valine and Phenylalanine are present in both fish. Oreochromis niloticus however has higher quantities of the essential amino acids except for Histidine than Clarias gariepinus
    Description: Includes:- 2 tables.;2 figs.;7 refs.
    Keywords: Chemistry ; Fisheries ; Clarias gariepinus ; Oreochromis niloticus ; Nigeria ; Kainji L. ; freshwater environment ; Amino acids ; Ash content ; Lipids ; Organic compounds ; Moisture ; Proteins
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
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    Format: 91 - 95
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  • 5
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    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23501 | 19325 | 2018-05-07 12:24:04 | 23501 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The proximate composition of leaves, petiole, root, rhizome and seeds of waterlily harvested from Tatabu flood plain/wetlands were determined and analyzed in percentages. Moisture content was highest in the rhizome (20.40 ~C 1.241) while the seeds gave the lowest value of (4.18 ~c 0.176). The highest value for Ash content was observed in the root (27.36 ~C 1.261) and the seeds gave the lowest (2.81 ~c 0.498). Highest value for the Crude fat was obtained from the seeds (9.95 ~c 0.637) whiles the petiole gave the lowest value of (2.27 ~c 0.377). The Crude protein and Crude fibre values were highest in the leaves (19.5 4~c 0.782) and; (15.53 ~c 0.448) while the lowest was obtained in the seeds (3.27 ~c 0.104), (1.60 ~c 0.200) respectively. There was a significant differences among the parts analyzed for the Ash content (p〈0.05). The NFE varied from (31.21 ~c 2.176) to (78.15 ~c 1.418)
    Description: Includes:- 1 table.;19 refs.
    Keywords: Biology ; Ecology ; Nymphaea lotus ; Nigeria ; Tatabu Floodplain ; Proximate composition ; freshwater environment ; Aquatic plants ; Chemical composition ; Chemical properties ; Moisture ; Lipids ; Nutritive value
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
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    Format: 512-515
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  • 6
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    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23507 | 19325 | 2018-05-08 15:28:31 | 23507 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Study was conducted to investigate lipid profile and metabolites in deformed (lost one or both pectoral fins) and healthy (both pectoral fins intact) African mud catfish C. gariepinus using three groups of adults male and female with a mean weight and standard length of 822.17~c 48.75g and 42.55~c.26cm respectively. The fish were allotted in replicates to 5000m capacity tanks based on the presence or absence of pectoral fins. 1mL blood was drawn from caudal peduncle of each fish by means of disposable sterile syringe and centrifuged at 1000rpm for 20min at 40C. Cholesterol and total protein were determined using the cholesterol FL (CT F400CH) and total protein (TP 0500CH) kits. Serum albumin and globulin concentrations were determined following methods described by Tietz (1995) and Buckley et al., (1976) while total serum bilirubin concentration was measured as outlined by AACC (American Association of Clinical Chemistry). Results indicate that male fish had relatively higher amount of triglyceride while female fish had higher amounts of cholesterol, reduction in globulin of the deformed fish, reduction in the concentrations of albumin in healthy fish, increase in total protein and globulin levels and high urea concentrations. No total bilurubin was detected in any of the fish sampled thus an indication of good liver function which means there was no liver dysfunction or liver damage in the fishes. It is evident therefore that abnormal fish can still perform better if they are given intense management because of the variability in their blood constituents with the normal fishes which is used to assess their health is minimal. Keywords: Blood, Cholesterol, Deformed, Healthy, C. gariepinus.
    Description: Includes:- 2 tables.;30 refs.
    Keywords: Fisheries ; Clarias gariepinus ; Nigeria ; Badagry ; freshwater environment ; Lipids ; Blood ; Cholesterol ; Metabolites
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 543-549
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  • 7
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    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23511 | 19325 | 2018-05-08 15:37:02 | 23511 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: A study was undertaken to analyse and compare with manufacturers’ declaration the nutrient content of some feeds available in Nigeria through proximate analysis. The commercial fish feeds collected from the markets were Adolf Calyx, Coppens, Dizengoff and Durante. Proximate composition such as moisture, crude protein, crude lipid, ash, fibre and NFE (nitrogen free extract) were analysed. In general, there was variation between analysed and company declared nutrient contents of different feeds especially the protein and lipid content of the feeds. Apart from Adolf Calyx, all the analysed feeds had protein contents of above 40% which is good for catfish production as recommended by the manufacturer. Keywords: Proximate composition, Commercial fishfeeds, Adolf Calyx, Coppens, Dizengoff, Durante.
    Description: Includes:- 2 tables.;15refs.
    Keywords: Aquaculture ; Nigeria ; Makurdi ; Proximate analysis ; Feed evaluation ; freshwater environment ; Moisture ; Ash content ; Proteins ; Lipids ; Diets ; Feed ; Feed efficiency
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
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    Format: 568-572
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  • 8
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26829 | 23782 | 2019-11-19 01:08:33 | 26829 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in lipid extraction from fish using the Modified Folch's Method. Instructions on sample preparation, and the apparatus and reagents needed are presented. Detailed procedures in lipid extraction are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fish inspection ; Fishery industry ; Food technology ; Standards ; Specifications ; Lipids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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    Format: C-2.1-C-2.2
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  • 9
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26838 | 23782 | 2019-11-19 00:36:53 | 26838 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in the preparation of methyl esters by boron trifluoride method in fish. Instructions on sample preparation and the apparatus and reagents needed are presented. Detailed procedures are also provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Food technology ; Standards ; Specifications ; Fish oils ; Fats ; Fatty acids ; Esters ; Lipids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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    Format: C-11.1-C-11.2
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  • 10
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26837 | 23782 | 2019-11-19 00:39:35 | 26837 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-07-24
    Description: The paper provides the methodology in the determination of the degree of lipid oxidation by gas chromatography. Instructions on sample preparation and the detailed procedures and calculation are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Food technology ; Standards ; Specifications ; Lipids ; Fats ; Fatty acids ; Oxidation ; Chromatographic techniques
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-10.1
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