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Purushothaman K, Ho Jia Wen R, bin Mohamed MH, Rwei Qing SDT, Heng Wuan L, Liang B, Thanh Vu N, Voigtmann M, McLean Press C, Loo G, Bisa S, Domingos JA, Jerry DR, Vij S. Comparative Nutritional and Histological Analysis of Malabar Red Snapper ( Lutjanus malabaricus) and Asian Seabass ( Lates calcarifer). Animals (Basel) 2024; 14:1803. [PMID: 38929422 PMCID: PMC11200453 DOI: 10.3390/ani14121803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/08/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
This study offers a comprehensive morpho-histological analysis of the gastrointestinal tract (GIT) of the Malabar red snapper. A comparison of its GIT morphology with that of the Asian seabass reveals similarities and differences between the two species. Additionally, the moisture content, crude protein, and ash in the fillets of Malabar red snapper and Asian seabass were slightly different, with Malabar red snapper exhibiting higher levels of essential fatty acids. Furthermore, higher levels of the polyunsaturated fatty acid (PUFA)/saturated fatty acid (SFA) ratio and docosahexaenoic acid (DHA)/eicosapentaenoic acid (EPA) ratio, and a lower omega-6/omega-3 ratio, were observed in Malabar red snapper compared to Asian seabass. The Malabar red snapper's esophagus featured protective mechanisms such as simple columnar epithelial cells, mucous-secreting glands, and goblet cells that were predominantly stained for acid and neutral mucosubstances. Furthermore, its stomach, with mucus cells that were weakly stained for acid mucosubstances, exhibited distinct regions with varying glandular densities, with the pyloric region featuring few glands. The pyloric caeca of the fish were composed of five finger-like structures and few goblet cells. Several goblet cells gradually increased from the anterior to the posterior region of the intestine. These findings provide useful insights for the aquaculture sector, focusing on Malabar red snapper.
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Affiliation(s)
- Kathiresan Purushothaman
- School of Applied Science, Republic Polytechnic, 9 Woodlands Avenue 9, Singapore 738964, Singapore; (R.H.J.W.); (M.H.b.M.); (S.D.T.R.Q.); (L.H.W.); (G.L.)
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
- Department of Preclinical Sciences and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, 1433 Ås, Norway;
| | - Rachel Ho Jia Wen
- School of Applied Science, Republic Polytechnic, 9 Woodlands Avenue 9, Singapore 738964, Singapore; (R.H.J.W.); (M.H.b.M.); (S.D.T.R.Q.); (L.H.W.); (G.L.)
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
| | - Muhammad Hazim bin Mohamed
- School of Applied Science, Republic Polytechnic, 9 Woodlands Avenue 9, Singapore 738964, Singapore; (R.H.J.W.); (M.H.b.M.); (S.D.T.R.Q.); (L.H.W.); (G.L.)
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
| | - Saraphina Dianne Tneo Rwei Qing
- School of Applied Science, Republic Polytechnic, 9 Woodlands Avenue 9, Singapore 738964, Singapore; (R.H.J.W.); (M.H.b.M.); (S.D.T.R.Q.); (L.H.W.); (G.L.)
| | - Lee Heng Wuan
- School of Applied Science, Republic Polytechnic, 9 Woodlands Avenue 9, Singapore 738964, Singapore; (R.H.J.W.); (M.H.b.M.); (S.D.T.R.Q.); (L.H.W.); (G.L.)
| | - Bing Liang
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
- Marine Aquaculture Centre, Singapore Food Agency, 52 Jurong Gateway Road, JEM Office Tower, #14-01, Singapore 608550, Singapore
| | - Nguyen Thanh Vu
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
| | - Michael Voigtmann
- Singapore Aquaculture Technologies (SAT) Pte Ltd., Singapore 308931, Singapore;
| | - Charles McLean Press
- Department of Preclinical Sciences and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, 1433 Ås, Norway;
| | - Grace Loo
- School of Applied Science, Republic Polytechnic, 9 Woodlands Avenue 9, Singapore 738964, Singapore; (R.H.J.W.); (M.H.b.M.); (S.D.T.R.Q.); (L.H.W.); (G.L.)
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
| | - Saraswathy Bisa
- Faculty of Biosciences and Aquaculture, Nord University, 8026 Bodø, Norway;
| | - Jose A. Domingos
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
| | - Dean R. Jerry
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
- ARC Research Hub for Supercharging Tropical Aquaculture through Genetic Solutions, James Cook University, 1 James Cook Drive, Townsville, QLD 4811, Australia
| | - Shubha Vij
- School of Applied Science, Republic Polytechnic, 9 Woodlands Avenue 9, Singapore 738964, Singapore; (R.H.J.W.); (M.H.b.M.); (S.D.T.R.Q.); (L.H.W.); (G.L.)
- Tropical Futures Institute, James Cook University Singapore, 149 Sims Drive, Singapore 387380, Singapore; (B.L.); (N.T.V.); (J.A.D.); (D.R.J.)
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Turner SM, Kukk K, Sidor IF, Mason MD, Bouchard DA. Biocompatibility of intraperitoneally implanted TEMPO-oxidized cellulose nanofiber hydrogels for antigen delivery in Atlantic salmon (Salmo salar L.) vaccines. FISH & SHELLFISH IMMUNOLOGY 2024; 147:109464. [PMID: 38412902 DOI: 10.1016/j.fsi.2024.109464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/07/2024] [Accepted: 02/24/2024] [Indexed: 02/29/2024]
Abstract
Disease outbreaks are a major impediment to aquaculture production, and vaccines are integral for disease management. Vaccines can be expensive, vary in effectiveness, and come with adjuvant-induced adverse effects, causing fish welfare issues and negative economic impacts. Three-dimensional biopolymer hydrogels are an appealing new technology for vaccine delivery in aquaculture, with the potential for controlled release of multiple immunomodulators and antigens simultaneously, action as local depots, and tunable surface properties. This research examined the intraperitoneal implantation of a cross-linked TEMPO cellulose nanofiber (TOCNF) hydrogel formulated with a Vibrio anguillarum bacterin in Atlantic salmon with macroscopic and microscopic monitoring to 600-degree days post-implantation. Results demonstrated a modified passive integrated transponder tagging (PITT) device allowed for implantation of the hydrogel. However, the Atlantic salmon implanted with TOCNF hydrogels exhibited a significant foreign body response (FBR) compared to sham-injected negative controls. The FBR was characterized by gross and microscopic external and visceral proliferative lesions, granulomas, adhesions, and fibrosis surrounding the hydrogel using Speilberg scoring of the peritoneum and histopathology of the body wall and coelom. Acutely, gross monitoring displayed rapid coagulation of blood in response to the implantation wound with development of fibrinous adhesions surrounding the hydrogel by 72 h post-implantation consistent with early stage FBR. While these results were undesirable for aquaculture vaccines, this work informs on the innate immune response to an implanted biopolymer hydrogel in Atlantic salmon and directs future research using cellulose nanomaterial formulations in Atlantic salmon for a new generation of aquaculture vaccine technology.
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Affiliation(s)
- Sarah M Turner
- Aquaculture Research Institute, University of Maine, Orono, ME, 04469, USA; Cooperative Extension, University of Maine, Orono, ME, 04469, USA.
| | - Kora Kukk
- Department of Biomedical Engineering, University of Maine, Orono, ME, 04469, USA
| | - Inga F Sidor
- New Hampshire Veterinary Diagnostic Laboratory, University of New Hampshire, Durham, NH, 03824, USA
| | - Michael D Mason
- Department of Biomedical Engineering, University of Maine, Orono, ME, 04469, USA
| | - Deborah A Bouchard
- Aquaculture Research Institute, University of Maine, Orono, ME, 04469, USA; Cooperative Extension, University of Maine, Orono, ME, 04469, USA
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Martínez A. Toxicity of persistent organic pollutants: a theoretical study. J Mol Model 2024; 30:97. [PMID: 38451367 PMCID: PMC11310291 DOI: 10.1007/s00894-024-05890-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 02/26/2024] [Indexed: 03/08/2024]
Abstract
CONTEXT Polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) are two families of persistent organic pollutants that are dangerous as they remain in the atmosphere for long periods and are toxic for humans and animals. They are found all over the world, including the penguins of Antarctica. One of the mechanisms that explains the toxicity of these compounds is related to oxidative stress. The main idea of this theoretical research is to use conceptual density functional theory as a theory of chemical reactivity to analyze the oxidative stress that PCBs and PBDEs can produce. The electron transfer properties as well as the interaction with DNA nitrogenous bases of nine PCBs and ten PBDEs found in Antarctic penguins are investigated. From this study, it can be concluded that compounds with more chlorine or bromine atoms are more oxidizing and produce more oxidative stress. These molecules also interact directly with the nitrogenous bases of DNA, forming hydrogen bonds, and this may be an explanation for the toxicity. Since quinone-type metabolites of PCBs and PBDEs can cause neurotoxicity, examples of quinones are also investigated. Condensed Fukui functions are included to analyze local reactivity. These results are important as the reactivity of these compounds helps to explain the toxicity of PCBs and PBDEs. METHODS All DFT computations were performed using Gaussian16 at M06-2x/6-311 + g(2d,p) level of theory without symmetry constraints. Electro-donating (ω-) and electro-accepting (ω +) powers were used as global response functions and condensed Fukui functions as local parameters of reactivity.
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Affiliation(s)
- Ana Martínez
- Departamento de Materiales de Baja Dimensionalidad, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior S.N. Ciudad Universitaria, 04510, CDMX, CP, Mexico.
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Hua XY, Long Y, Ong DSM, Theng AHP, Shi JK, Osen R, Wu M, Chiang JH. Mathematical optimisation of extruded mixed plant protein-based meat analogues based on amino acid compositions. Curr Res Food Sci 2023; 7:100648. [PMID: 38115894 PMCID: PMC10728321 DOI: 10.1016/j.crfs.2023.100648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/23/2023] [Accepted: 11/25/2023] [Indexed: 12/21/2023] Open
Abstract
Developing meat analogues of superior amino acid (AA) profiles in the food industry is a challenge as plant proteins contain less of some essential AA than animal proteins. Mathematical optimisation models such as linear/non-linear programming models were used to overcome this challenge and create high-moisture meat analogues (HMMA) with AA profiles as close as possible to chicken breast meat. The effect on the physiochemical properties and specific mechanical energy (SME) of the HMMA was investigated. The AA content of HMMA was generally lower than chicken. Strong intermolecular bonds present in the globulin fraction could hinder protein acid hydrolysis of HMMA. Plant proteins also affect the HMMA colour as certain AA forms Maillard reaction products with higher browning intensity. Lastly, different characteristics of plant proteins resulted in different SME values under the same extrusion conditions. While mathematical programming can optimise plant protein combinations, fortification is required to match the AA profile of HMMA to an animal source.
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Affiliation(s)
- Xin Yi Hua
- Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Yushen Long
- Machine Intellection Department, Institute for Infocomm Research, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Dayna Shu Min Ong
- Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Alicia Hui Ping Theng
- Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Jing K. Shi
- Machine Intellection Department, Institute for Infocomm Research, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Raffael Osen
- Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Min Wu
- Machine Intellection Department, Institute for Infocomm Research, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Jie Hong Chiang
- Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore
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Khan I, Hussain M, Jiang B, Zheng L, Pan Y, Hu J, Khan A, Ashraf A, Zou X. Omega-3 long-chain polyunsaturated fatty acids: Metabolism and health implications. Prog Lipid Res 2023; 92:101255. [PMID: 37838255 DOI: 10.1016/j.plipres.2023.101255] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 10/04/2023] [Accepted: 10/09/2023] [Indexed: 10/16/2023]
Abstract
Recently, omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs) have gained substantial interest due to their specific structure and biological functions. Humans cannot naturally produce these fatty acids (FAs), making it crucial to obtain them from our diet. This comprehensive review details n-3 LC-PUFAs and their role in promoting and maintaining optimal health. The article thoroughly analyses several sources of n-3 LC-PUFAs and their respective bioavailability, covering marine, microbial and plant-based sources. Furthermore, we provide an in-depth analysis of the biological impacts of n-3 LC-PUFAs on health conditions, with particular emphasis on cardiovascular disease (CVD), gastrointestinal (GI) cancer, diabetes, depression, arthritis, and cognition. In addition, we highlight the significance of fortification and supplementation of n-3 LC-PUFAs in both functional foods and dietary supplements. Additionally, we conducted a detailed analysis of the several kinds of n-3 LC-PUFAs supplements currently available in the market, including an assessment of their recommended intake, safety, and effectiveness. The dietary guidelines associated with n-3 LC-PUFAs are also highlighted, focusing on the significance of maintaining a well-balanced intake of n-3 PUFAs to enhance health benefits. Lastly, we highlight future directions for further research in this area and their potential implications for public health.
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Affiliation(s)
- Imad Khan
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Mudassar Hussain
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Bangzhi Jiang
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Lei Zheng
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Yuechao Pan
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Jijie Hu
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Adil Khan
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Azqa Ashraf
- School of Food Science and Engineering, Ocean University of China, Qingdao 2666100, China
| | - Xiaoqiang Zou
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China.
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Hasanaliyeva G, Sufar EK, Wang J, Rempelos L, Volakakis N, Iversen PO, Leifert C. Effects of Agricultural Intensification on Mediterranean Diets: A Narrative Review. Foods 2023; 12:3779. [PMID: 37893672 PMCID: PMC10606286 DOI: 10.3390/foods12203779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
INTRODUCTION Mediterranean diets (MedDiets) are linked to substantial health benefits. However, there is also growing evidence that the intensification of food production over the last 60 years has resulted in nutritionally relevant changes in the composition of foods that may augment the health benefits of MedDiets. OBJECTIVE To synthesize, summarize, and critically evaluate the currently available evidence for changes in food composition resulting from agricultural intensification practices and their potential impact on the health benefits of MedDiets. METHODS We summarized/synthesized information from (i) systematic literature reviews/meta-analyses and more recently published articles on composition differences between conventional and organic foods, (ii) desk studies which compared food composition data from before and after agricultural intensification, (iii) recent retail and farm surveys and/or factorial field experiments that identified specific agronomic practices responsible for nutritionally relevant changes in food composition, and (iv) a recent systematic literature review and a small number of subsequently published observational and dietary intervention studies that investigated the potential health impacts of changes in food composition resulting from agricultural intensification. RESULTS AND DISCUSSION There has been growing evidence that the intensification of food production has resulted in (i) lower concentrations of nutritionally desirable compounds (e.g., phenolics, certain vitamins, mineral micronutrients including Se, Zn, and omega-3 fatty acids, α-tocopherol) and/or (ii) higher concentrations of nutritionally undesirable or toxic compounds (pesticide residues, cadmium, omega-6 fatty acids) in many of the foods (including wholegrain cereals, fruit and vegetables, olive oil, dairy products and meat from small ruminants, and fish) that are thought to contribute to the health benefits associated with MedDiets. The evidence for negative health impacts of consuming foods from intensified conventional production systems has also increased but is still limited and based primarily on evidence from observational studies. Limitations and gaps in the current evidence base are discussed. Conclusions: There is now substantial evidence that the intensification of agricultural food production has resulted in a decline in the nutritional quality of many of the foods that are recognized to contribute to the positive health impacts associated with adhering to traditional MedDiets. Further research is needed to quantify to what extent this decline augments the positive health impacts of adhering to a traditional MedDiet.
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Affiliation(s)
- Gultekin Hasanaliyeva
- School of Animal, Rural and Environmental Sciences, Brackenhurst Campus, Nottingham Trent University, Nottinghamshire NG25 0QF, UK
- Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (E.K.S.)
| | - Enas Khalid Sufar
- Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (E.K.S.)
| | - Juan Wang
- Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (E.K.S.)
- Department of Clinical Nutrition, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Leonidas Rempelos
- Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (E.K.S.)
- Lincoln Institute for Agri-Food Technology, University of Lincoln, Lincoln LN2 2LG, UK
| | - Nikolaos Volakakis
- Nafferton Ecological Farming Group, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (E.K.S.)
- Geokomi Plc, P.O. Box 21, GR70200 Sivas Festos, Greece
| | - Per Ole Iversen
- Department of Nutrition, IMB, University of Oslo, 0317 Oslo, Norway
- Department of Haematology, Oslo University Hospital, 0424 Oslo, Norway
| | - Carlo Leifert
- Department of Nutrition, IMB, University of Oslo, 0317 Oslo, Norway
- SCU Plant Science, Southern Cross University, Military Rd., Lismore, NSW 2480, Australia
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Kozak N, Kahilainen KK, Pakkanen HK, Hayden B, Østbye K, Taipale SJ. Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient. ENVIRONMENTAL RESEARCH 2023; 233:116511. [PMID: 37369304 DOI: 10.1016/j.envres.2023.116511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 06/22/2023] [Accepted: 06/24/2023] [Indexed: 06/29/2023]
Abstract
Mercury is a highly toxic element for consumers, but its relation to amino acids and physiology of wild fish is not well known. The main aim of this study was to evaluate how total mercury content (THg) of northern pike (Esox lucius) is related to amino acids and potentially important environmental and biological factors along a climate-productivity gradient of ten subarctic lakes. Linear regression between THg and sixteen amino acids content [nmol mg-1 dry weight] from white dorsal muscle of pike from these lakes were tested. Lastly, a general linear model (GLM) for age-corrected THg was used to test which factors are significantly related to mercury content of pike. There was a positive relationship between THg and proline. Seven out of sixteen analysed amino acids (histidine, threonine, arginine, serine, glutamic acid, glycine, and aspartic acid) were significantly negatively related to warmer and more productive lakes, while THg showed a positive relationship. GLM model indicated higher THg was found in higher trophic level pike with lower cysteine content and inhabiting warmer and more productive lakes with larger catchment containing substantial proportion of peatland area. In general, THg was not only related to the biological and environmental variables but also to amino acid content.
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Affiliation(s)
- Natalia Kozak
- Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Campus Evenstad, Anne Evenstad Veg 80, NO-2480, Koppang, Norway.
| | - Kimmo K Kahilainen
- Lammi Biological Station, University of Helsinki, Pääjärventie 320, FI-16900, Lammi, Finland; Kilpisjärvi Biological Station, University of Helsinki, Käsivarrentie 14622, FI-99490, Kilpisjärvi, Finland
| | - Hannu K Pakkanen
- Department of Biological and Environmental Science, University of Jyväskylä, P.O.Box 35 (YA), FI-40014, Jyväskylä, Finland
| | - Brian Hayden
- Biology Department, Canadian Rivers Institute, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Kjartan Østbye
- Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Campus Evenstad, Anne Evenstad Veg 80, NO-2480, Koppang, Norway; Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, P.O.Box 1066, Blindern, NO-0316, Oslo, Norway
| | - Sami J Taipale
- Department of Biological and Environmental Science, University of Jyväskylä, P.O.Box 35 (YA), FI-40014, Jyväskylä, Finland
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Polak-Juszczak L, Waszak I, Szlinder-Richert J, Wójcik I. Levels, time trends, and distribution of dioxins and polychlorinated biphenyls in fishes from the Baltic Sea. CHEMOSPHERE 2022; 306:135614. [PMID: 35810860 DOI: 10.1016/j.chemosphere.2022.135614] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/22/2022] [Accepted: 07/03/2022] [Indexed: 06/15/2023]
Abstract
Fish absorb dioxins from the environment through water and contact with sediments but the main source is food. These contaminants also enter the human body with food, including through the consumption of fish. This study presents the dioxin and polychlorinated biphenyl (PCB) concentrations in 145 samples of four fish species (herring, sprat, sea trout, salmon) caught in the southern Baltic Sea. The study results permit assessing whether the efforts made in recent years to reduce dioxin and PCB emissions into the environment have translated into decreases in concentrations of these pollutants in Baltic Sea fishes and whether these raw fish materials meet food law requirements. The safest fish species with regard to dioxins were designated, as were those of which consumption should be limited. The influence of fish age (length) and weight on dioxin and dioxin-like polychlorinated biphenyl (dl-PCB) concentrations was investigated. The correlation between fat content and dioxin concentration was determined. The Baltic Sea region and fishing ports from which the least contaminated fish come were also determined. The studies indicated that dioxin and PCB concentrationsin fishes from Polish fishing areas are currently lower than they were twenty years ago.
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Affiliation(s)
- Lucyna Polak-Juszczak
- Department of Food and Environmental Chemistry, National Marine Fisheries Research Institute, ul. Kołłątaja1, 81-332, Gdynia, Poland.
| | - Ilona Waszak
- Department of Food and Environmental Chemistry, National Marine Fisheries Research Institute, ul. Kołłątaja1, 81-332, Gdynia, Poland
| | - Joanna Szlinder-Richert
- Department of Food and Environmental Chemistry, National Marine Fisheries Research Institute, ul. Kołłątaja1, 81-332, Gdynia, Poland
| | - Ireneusz Wójcik
- Department of Logistics and Monitoring, National Marine Fisheries Research Institute, ul. Kołłątaja1, 81-332, Gdynia, Poland
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9
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Garnås E. Perspective: Darwinian Applications to Nutrition-The Value of Evolutionary Insights to Teachers and Students. Adv Nutr 2022; 13:1431-1439. [PMID: 35675225 PMCID: PMC9526857 DOI: 10.1093/advances/nmac063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/13/2022] [Accepted: 05/30/2022] [Indexed: 01/28/2023] Open
Abstract
Evolutionary biology informs us that the living world is a product of evolution, guided by the Darwinian mechanism of natural selection. This recognition has been fruitfully employed in a number of issues in health and nutrition sciences; however, it has not been incorporated into education. Nutrition and dietetics students generally learn very little or nothing on the subject of evolution, despite the fact that evolution is the process by which our genetically determined physiological traits and needs were shaped. In the present Perspective article, 3 examples of topics (inflammatory diseases, nutrition transition, and food intolerance) that can benefit from evolutionary information and reasoning are given, with relevant lines of research and inquiry provided throughout. It is argued that the application of evolutionary science to these and other areas of nutrition education can facilitate a deeper and more coherent teaching and learning experience. By recognizing and reframing nutrition as an aspect and discipline of biology, grounded in the fundamental principle of adaptation, revelatory light is shed on physiological states and responses, contentious and unresolved issues, genomic, epigenomic, and microbiomic features, and optimal nutrient status and intakes.
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Affiliation(s)
- Eirik Garnås
- Institute of Health, Oslo New University College, Oslo, Norway
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10
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Nutritional Quality and Assessment of Contaminants in Farmed Atlantic Salmon (Salmo salar L.) of Different Origins. J FOOD QUALITY 2022. [DOI: 10.1155/2022/9318889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Atlantic salmon represents an important source of valuable proteins and lipids rich in n-3 fatty acids and micronutrients. However, there are reports that these marine fish still contain contaminants at levels that raise health concerns. Although the Stockholm Convention already bans some compounds, they can still be detected because of their persistence. The present study reports nutritional parameters and the occurrence of persistent and bioaccumulative chemicals in the tissues of fifty-five salmon from several major farming areas. The protein content of all samples was almost identical, averaging to 19.2% w/w, while lipids averaged 14.9% w/w. Fish from Chilean farms contained 6.0% less fat and a lower level of vitamin E than from other sources, that is, 2.2 mg per 100 g (w/w). Fish from Scottish farms contained higher levels of eicosapentaenoic and docosahexaenoic acid. Halogenated contaminants from polychlorinated biphenyls, organochlorinated pesticides, brominated flame retardants, and perfluoroalkylated and polyfluoroalkylated substances were measured, and generally, they were found to be at very low concentrations that did not exceed the legislation limits applicable in the European Union. These results showed that the compositional differences between Atlantic salmon from several important farming areas were only minor, but some significant differences were demonstrated in total fat content and fatty acid profiles.
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11
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Castellini G, Vezzulli F, Lambri M, Sacchettini G, Graffigna G, Marques A, Capri E. Perceptions and Liking Distortion from Information about the Nutritional Upgrades in Biofortified Seafood Products. Foods 2022; 11:foods11182808. [PMID: 36140936 PMCID: PMC9497835 DOI: 10.3390/foods11182808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/30/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: As biofortified fish meat is becoming increasingly available, the use of supplements within fish feed may impact consumers’ perceptions and their willingness to pay (WTP) for the product. This study focused on evaluating the sensory liking of, and WTP for, fish produced with fortified feed while understanding the role played by the acquired information on fish fortification. (2) Methods: Hedonic ratings and WTP were measured in an experimental bid. The participants (n = 91) were asked to rate pleasantness and WTP during two different rounds: (i) appearance–information–tasting and (ii) appearance–tasting–information. A total of three fish species (carp, seabream, and trout) were presented to the consumers as being either fortified (with iodine, selenium, and omega-3 fatty acids) or conventional products. (3) Results: For pleasantness, no significant differences were found between the fortified and conventional fish. In contrast, substantial differences emerged when information regarding the products was provided. Providing the relevant information before tasting affected how much the consumers liked the conventional fish, resulting in a preference for it over the fortified fish. Additionally, consumers are willing to pay more for fortified fish, especially when information with respect to fortification is available. Nevertheless, when information about fortification was provided before tasting, the consumer’s expectations were not fulfilled. (4) Conclusions: The outcomes of this study clearly indicate that the presence of relevant information impacts how much people like fortified versus conventional fish, as well as their WTP.
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Affiliation(s)
- Greta Castellini
- EngageMinds Hub, Consumer, Food & Health Engagement Research Center, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - Fosca Vezzulli
- Department for Sustainable Food Process (DiSTAS), Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - Milena Lambri
- Department for Sustainable Food Process (DiSTAS), Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
- Correspondence: ; Tel.: +39-0523-599178
| | | | - Guendalina Graffigna
- EngageMinds Hub, Consumer, Food & Health Engagement Research Center, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - António Marques
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA), 1749-077 Lisbon, Portugal
| | - Ettore Capri
- Department for Sustainable Food Process (DiSTAS), Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
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12
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Chang WH, Ling YS, Wang KC, Nan FH, Chen WL. Discrimination of Atlantic salmon origins using untargeted chemical fingerprinting. Food Chem 2022; 394:133538. [PMID: 35759841 DOI: 10.1016/j.foodchem.2022.133538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/27/2022] [Accepted: 06/18/2022] [Indexed: 11/15/2022]
Abstract
Mislabelling the geographic origin of same-species aquaculture products is difficult to identify. This study applied untargeted small-molecule fingerprinting to discriminating between Atlantic salmon originating from Chile and Norway. The acquired liquid chromatography-high-resolution mass spectrometry data from Chilean (n = 32) and Norwegian (n = 29) salmon were chemometrically processed. The partial least squares discriminant analysis (PLS-DA) models successfully discriminated between Chilean and Norwegian salmon at both positive and negative ionisation modes (R2 > 0.96, Q2 > 0.81). Univariate analyses facilitated the selection of approximately 100 candidate markers with high statistical confidence (> 95%). Of these, 37 confirmed markers of Chilean and Norwegian salmon were primarily associated with feed formulations, including lipid derivatives and feed additives. None of the markers were residues or contaminants of potential food safety concern.
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Affiliation(s)
- Wen-Hsin Chang
- Institute of Food Safety and Health, College of Public Health, National Taiwan University, 17 Xuzhou Rd., Taipei 100, Taiwan
| | - Yee Soon Ling
- CAIQ Certification Sdn Bhd, Suite D-4-1, Block D, 4th Fl., Plaza Tanjung Aru, 88100 Kota Kinabalu, Sabah, Malaysia
| | - Ko-Chih Wang
- Department of Computer Science and Information Engineering, College of Science, National Taiwan Normal University, 162, Sec. 1, Heping E. Rd., Taipei 106, Taiwan.
| | - Fan-Hua Nan
- Department of Aquaculture, College of Life Sciences, National Taiwan Ocean University, 2, Beining Rd., Keelung 202, Taiwan.
| | - Wen-Ling Chen
- Institute of Food Safety and Health, College of Public Health, National Taiwan University, 17 Xuzhou Rd., Taipei 100, Taiwan; Department of Public Health, College of Public Health, National Taiwan University, 17 Xuzhou Rd., Taipei 100, Taiwan; Department of Agricultural Chemistry, College of Bioresources and Agriculture, National Taiwan University, 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan.
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13
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14
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Aspevik T, Steinsholm S, Vang B, Carlehög M, Arnesen JA, Kousoulaki K. Nutritional and Sensory Properties of Protein Hydrolysates Based on Salmon ( Salmo salar), Mackerel ( Scomber scombrus), and Herring ( Clupea harengus) Heads and Backbones. Front Nutr 2021; 8:695151. [PMID: 34957173 PMCID: PMC8703218 DOI: 10.3389/fnut.2021.695151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
Protein hydrolysates based on salmon, mackerel, and herring heads and backbones were produced, and the sensory properties of the hydrolysates were evaluated by a highly trained sensory panel. The nutritional content of the products was evaluated, and the hydrolysates contained all the amino acids inherent to the raw material, including considerable levels of connective tissue amino acids glycine, proline, and hydroxyproline. Hydrolysates based on herring were the most flavor intense, whereas hydrolysates based on salmon were deemed more palatable. In this work, choice of fraction (heads vs. backbones) and enzyme had minor effects on sensory and nutritional properties, indicating that choice of raw material species was the major factor for flavor development in the produced protein hydrolysates. There were large variations in protein content and amino acid composition in the raw material fractions, but as expected, only minor variations were found in the final products.
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Affiliation(s)
- Tone Aspevik
- Department Nutrition and Feed Technology, Nofima, Fyllingsdalen, Norway
| | - Silje Steinsholm
- Department Nutrition and Feed Technology, Nofima, Fyllingsdalen, Norway
| | - Birthe Vang
- Department Marine Biotechnology, Nofima, Tromsø, Norway
| | - Mats Carlehög
- Department Consumer and Sensory Sciences, Nofima, Ås, Norway
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15
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Nutritional Quality of the European Spiny Lobster Palinurus elephas (J.C. Fabricius, 1787) (Achelata, Palinuridae) and the Non-Indigenous Northern Brown Shrimp Penaeus aztecus Ives, 1891 (Dendrobranchiata, Penaeidae). Foods 2021; 10:foods10102480. [PMID: 34681529 PMCID: PMC8535637 DOI: 10.3390/foods10102480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/14/2021] [Accepted: 10/15/2021] [Indexed: 11/17/2022] Open
Abstract
The European spiny lobster is a species of great commercial value, yet a limited scientific knowledge exists on its biology, ecology, and physiology, especially for the stocks from east Mediterranean waters. The northern brown shrimp, a non-indigenous established species, is commercially exploited in regions of the Mediterranean Sea. Both species’ proximate composition and fatty acid profile were assessed for the first time in the Mediterranean region, exhibiting an overall significant statistical difference. Protein, fat, and energy contents were significantly higher in the northern brown shrimp, whereas moisture and ash contents were significantly higher in the European spiny lobster. The proximate composition for both species was well within the reported range for other lobster and prawn species in the Mediterranean Sea.
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16
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Khoukaz HB. Fish Oil Supplements for Prevention of Cardiovascular Disease: The Jury Is Still Out: CON: Fish Oil is Useful to Prevent or Treat Cardiovascular Disease. MISSOURI MEDICINE 2021; 118:219-225. [PMID: 34149081 PMCID: PMC8211000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Consumption of oily fish high in omega-3 fatty acids (n-3FAs) is strongly associated with reduced risk of adverse cardiovascular events. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are the n-3FAs in fish oil believed to confer its beneficial effects. Over the past two decades, multiple clinical trials have been conducted to test the hypothesis that encapsulated EPA and DHA supplements improve cardiovascular outcomes in patients with established cardiovascular disease or at risk of developing it. Over the same time period, over-the-counter fish oil supplements have become a multi-billion-dollar industry. In this article, we briefly review available clinical trial data involving EPA and DHA supplementation. Based on currently available information, we conclude that combination capsules containing EPA and DHA should not be used to reduce cardiovascular risk. Some studies suggest that EPA as stand-alone therapy decreases cardiovascular risk. Nevertheless, we advocate a restrictive approach to using EPA to improve cardiovascular outcomes.
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