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Kibet S, Mudalungu CM, Ochieng BO, Mokaya HO, Kimani NM, Tanga CM. Nutritional composition of edible wood borer beetle larvae in Kenya. PLoS One 2024; 19:e0304944. [PMID: 38843212 PMCID: PMC11156320 DOI: 10.1371/journal.pone.0304944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/22/2024] [Indexed: 06/09/2024] Open
Abstract
Exploration of edible insects as sustainable alternative nutrient-dense sources such as nutraceuticals have attracted more and more global attention recently. However, research on wood borer beetles have largely been overlooked. This study assessed the entomo-chemical properties of Titoceres jaspideus (Cerambycidae) and Passalus punctiger (Passalidae), which are widely consumed in many African countries, including Kenya. The crude protein content of the beetle larvae ranged between 27.5-39.8 mg BSA/g. In comparison with those of cereals, amino acids such as lysine (7.9-9.9 mg/g), methionine (0.48-0.64 mg/g) and threonine (2.31-2.55 mg/g) were considerably high in the larvae. Methyl-5Z,8Z,11Z,14Z-eicosatetraenoate and methyl-9Z-octadecenoate were the predominant polyunsaturated and monounsaturated fatty acids, respectively. High total phenols (>4.4 mg GAE/g), flavonoids (>3.6 mg QE/g) and anti-oxidative activities (>67%) were recorded for both larvae. This implies that increasing the consumption of wood-borer beetle larvae would positively impact the state of the natural environment and reduce the problem of malnutrition in the society. Thus, applying these strategies to develop insect food in a more familiar form can help to make insect-enriched foods more appealing to consumers, facilitating their widespread adoption as a sustainable and nutritious food source.
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Affiliation(s)
- Shadrack Kibet
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
- Department of Physical Sciences, University of Embu, Embu, Kenya
| | - Cynthia M. Mudalungu
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
- School of Chemistry and Material Science, The Technical University of Kenya, Nairobi, Kenya
| | - Brian O. Ochieng
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Hosea O. Mokaya
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Njogu M. Kimani
- Department of Physical Sciences, University of Embu, Embu, Kenya
| | - Chrysantus M. Tanga
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
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Zhou Y, Yu Y, Gong X, Tan Z, Guo M, Geng Q, Li F. Effects of perfluorooctanoic acid on the nutritional quality of Mytilus edulis. MARINE POLLUTION BULLETIN 2024; 203:116427. [PMID: 38735169 DOI: 10.1016/j.marpolbul.2024.116427] [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: 02/06/2024] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/14/2024]
Abstract
Perfluorooctanoic acid (PFOA), which widely presents in marine environment, may produce some adverse effects to aquatic organism. Mytilus edulis are popular due to their high protein and low fat content in China. However, few studies have investigated the effects of PFOA on the quality of aquatic products. Here, PFOA effects on basic nutritional indices in M. edulis were measured, and possible mechanisms were explored. PFOA caused clear variation in physiological and biochemical indices of M. edulis. The contents of some important proteins, nutrients, and amino acids etc. dropped. Integrating metabolomics data, we speculate PFOA exposure triggered inflammation and oxidative stress in mussels, interfered with the metabolic pathways related to the quality and the transport and absorption pathways of metal ions, and affected the levels of some important elements and metabolites, thus decreasing the nutritional quality of M. edulis. The study provides new insights into PFOA adverse effects to marine organism, and may offer some references for some researchers to assess food quality and ecological risk to pollutants.
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Affiliation(s)
- Yang Zhou
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, People's Republic of China; College of Fisheries and life Science, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Yongxing Yu
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, People's Republic of China
| | - Xiuqiong Gong
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, People's Republic of China; College of Fisheries and life Science, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Zhijun Tan
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, People's Republic of China
| | - Mengmeng Guo
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, People's Republic of China
| | - Qianqian Geng
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, People's Republic of China
| | - Fengling Li
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, People's Republic of China.
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Chasquibol N, Gonzales BF, Alarcón R, Sotelo A, Márquez-López JC, Rodríguez-Martin NM, Del Carmen Millán-Linares M, Millán F, Pedroche J. Optimisation and Characterisation of the Protein Hydrolysate of Scallops ( Argopecten purpuratus) Visceral By-Products. Foods 2023; 12:foods12102003. [PMID: 37238820 DOI: 10.3390/foods12102003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/25/2023] [Accepted: 04/29/2023] [Indexed: 05/28/2023] Open
Abstract
In this research, scallops (Argopecten purpuratus) visceral meal (SVM) and defatted meal (SVMD) were analysed for their proximal composition, protein solubility, and amino acid profile. Hydrolysed proteins isolated from the scallop's viscera (SPH) were optimised and characterised using response surface methodology with a Box-Behnken design. The effects of three independent variables were examined: temperature (30-70 °C), time (40-80 min), and enzyme concentration (0.1-0.5 AU/g protein) on the degree of hydrolysis (DH %) as a response variable. The optimised protein hydrolysates were analysed for their proximal composition, yield, DH %, protein solubility, amino acid composition, and molecular profile. This research showed that defatted and isolation protein stages are not necessaries to obtain the hydrolysate protein. The conditions of the optimization process were 57 °C, 62 min and 0.38 AU/g protein. The amino acid composition showed a balanced profile since it conforms to the Food and Agriculture Organisation/World Health Organisation recommendations for healthy nutrition. The predominant amino acids were aspartic acid + asparagine, glutamic acid + Glutamate, Glycine, and Arginine. The protein hydrolysates' yield and DH % were higher than 90% and close to 20%, respectively, with molecular weight between 1-5 kDa. The results indicate that the protein hydrolysates of scallops (Argopecten purpuratus) visceral by product optimised and characterised was suitable a lab-scale. Further research is necessary to study the bioactivity properties with biologic activity of these hydrolysates.
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Affiliation(s)
- Nancy Chasquibol
- Grupo de Investigación en Alimentos Funcionales, Carrera de Ingeniería Industrial, Instituto de Investigación Científica, Universidad de Lima, Av. Javier Prado Este 4600, 15023 Fundo Monterrico Chico, Surco, Lima 15023, Peru
| | - Billy Francisco Gonzales
- Grupo de Investigación en Alimentos Funcionales, Carrera de Ingeniería Industrial, Instituto de Investigación Científica, Universidad de Lima, Av. Javier Prado Este 4600, 15023 Fundo Monterrico Chico, Surco, Lima 15023, Peru
| | - Rafael Alarcón
- Grupo de Investigación en Alimentos Funcionales, Carrera de Ingeniería Industrial, Instituto de Investigación Científica, Universidad de Lima, Av. Javier Prado Este 4600, 15023 Fundo Monterrico Chico, Surco, Lima 15023, Peru
| | - Axel Sotelo
- Grupo de Investigación en Alimentos Funcionales, Carrera de Ingeniería Industrial, Instituto de Investigación Científica, Universidad de Lima, Av. Javier Prado Este 4600, 15023 Fundo Monterrico Chico, Surco, Lima 15023, Peru
| | - José Carlos Márquez-López
- Instituto de la Grasa-Consejo Superior de Investigaciones Científicas, Campus Universidad Pablo de Olavide Ed. 46, Crtra. Sevilla-Utrera km 1, 41013 Sevilla, Spain
| | - Noelia M Rodríguez-Martin
- Instituto de la Grasa-Consejo Superior de Investigaciones Científicas, Campus Universidad Pablo de Olavide Ed. 46, Crtra. Sevilla-Utrera km 1, 41013 Sevilla, Spain
- Department of Medical Biochemistry, Molecular Biology, and Immunology, School of Medicine, University of Seville, 41009 Seville, Spain
| | - María Del Carmen Millán-Linares
- Instituto de la Grasa-Consejo Superior de Investigaciones Científicas, Campus Universidad Pablo de Olavide Ed. 46, Crtra. Sevilla-Utrera km 1, 41013 Sevilla, Spain
- Department of Medical Biochemistry, Molecular Biology, and Immunology, School of Medicine, University of Seville, 41009 Seville, Spain
| | - Francisco Millán
- Instituto de la Grasa-Consejo Superior de Investigaciones Científicas, Campus Universidad Pablo de Olavide Ed. 46, Crtra. Sevilla-Utrera km 1, 41013 Sevilla, Spain
| | - Justo Pedroche
- Instituto de la Grasa-Consejo Superior de Investigaciones Científicas, Campus Universidad Pablo de Olavide Ed. 46, Crtra. Sevilla-Utrera km 1, 41013 Sevilla, Spain
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Kaewbangkerd K, Hamzeh A, Yongsawatdigul J. Ultrasound-assisted extraction of collagen from broiler chicken trachea and its biochemical characterization. ULTRASONICS SONOCHEMISTRY 2023; 95:106372. [PMID: 36944278 PMCID: PMC10036945 DOI: 10.1016/j.ultsonch.2023.106372] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/06/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
Broiler chicken tracheas are a co-product from chicken slaughterhouses which are normally turned into low value animal feed despite their high levels of collagen. Typical collagen extraction by acid and/or pepsin usually results in relatively low yield. Ultrasound-assisted extraction (UAE) could be a means to improve collagen yield. The objectives of this study were to investigate the effects of ultrasonic parameters on the yield and biochemical properties of trachea collagen (TC). Conventional extraction using acetic acid and pepsin for 48 h resulted in acid-soluble (AS) and pepsin-soluble (PS) collagen with a yield of 0.65% and 3.10%, respectively. When an ultrasound with an intensity of 17.46 W·cm-2 was applied for 20 min, followed by acid extraction for 42 h (U-AS), the collagen yield increased to 1.58%. A yield of 6.28% was obtained when the ultrasound treatment was followed by pepsin for 36 h (U-PS). PS and U-PS contained collagen of 82.84% and 85.70%, respectively. Scanning electron microscopy images revealed that the ultrasound did not affect the collagen microstructure. All collagen samples showed an obvious triple helix structure as measured by circular dichroism spectroscopy. Fourier transform infrared spectroscopy indicated that the ultrasound did not disturb the secondary structure of the protein in which approximately 30% of the α-helix content was a major structure for all collagen samples. Micro-differential scanning calorimetry demonstrated that the denaturation temperature of collagen in the presence of deionized water was higher than collagen solubilized in 0.5 M acetic acid, regardless of the extraction method. All collagen comprised of α1 and α2-units with molecular weights of approximately 135 and 116 kDa, respectively, corresponding to the type I characteristic. PS and U-PS collagen possessed higher imino acids than their AS and U-AS counterparts. Based on LC-MS/MS peptide mapping, PS and U-PS collagen showed a high similarity to type I collagen. These results suggest that chicken tracheas are an alternative source of type I collagen. UAE is a promising technique that could increase collagen yield without damaging its structure.
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Affiliation(s)
- Kitsanapong Kaewbangkerd
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Ali Hamzeh
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Jirawat Yongsawatdigul
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.
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Dewi E, Agustina R, Sarong MA, Yulianda F, Suhendrayatna S. Histopathological Analysis of Faunus Ater Ovotestis in Bale and Reuleueng Rivers, Aceh Besar Regency, Aceh Province Indonesia. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Faunus ater is one of the macrozoobenthos that is often consumed by the community, especially in the Leupung and Lhoknga areas, Aceh Besar District. The presence of Pb and Zn is suspected to be able to damage the body cells of F. ater, especially the ovotestis organ. Ovotestis is an organ in mollusks in general that can produce egg cells and sperm cells simultaneously.
AIM: The purpose of this study was to analyze the level of damage to the Ovotestis of F. ater based on the state of the damaged Ovotestis cells.
METHODS: The method of this research method is F. ater that samples were taken from Bale and Reuleung River, each river is divided into three stations and at each station, three samples of F. ater are taken. Ovotestical histopathological analysis was carried out at the Histology Laboratory, Faculty of Veterinary Medicine, Syiah Kuala University. Preparation of ovotestis histology preparations using the paraffin method. Previously, F. ater was terminated and carcass surgery was performed. The level of damage to female gametes and male gametes was carried out descriptively by observing gonadal cells undergoing necrosis, hypertrophy, and lysis. Observation of the level of damage to the ovotestis tissue of F. ater was carried out using a cell damage scoring system, namely, the level of damage, the type of damage, and the scoring value.
RESULTS: The level of tissue damage to the ovotestis organ of F. ater was at level III with a score of 6. The highest percentage of damage occurred in Krueng Bale, namely, 19.027% for male gonads and 42.687% for female gonads. While the highest percentage of damage to ovotestis organ occurred in Krueng Reuleung 15,489% for male gonads and 40,695% for female gonads.
CONCLUSION: The result shows that there was damage to the gonads of F. ater in Krueng Bale and Krueng Reuleung based on the number of fully-formed oocytes/sperm, the number of incompletely formed oocytes/sperm, and the number of damaged oocytes/sperm.
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Falua KJ, Pokharel A, Babaei-Ghazvini A, Ai Y, Acharya B. Valorization of Starch to Biobased Materials: A Review. Polymers (Basel) 2022; 14:polym14112215. [PMID: 35683888 PMCID: PMC9183024 DOI: 10.3390/polym14112215] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/11/2022] [Accepted: 05/17/2022] [Indexed: 12/17/2022] Open
Abstract
Many concerns are being expressed about the biodegradability, biocompatibility, and long-term viability of polymer-based substances. This prompted the quest for an alternative source of material that could be utilized for various purposes. Starch is widely used as a thickener, emulsifier, and binder in many food and non-food sectors, but research focuses on increasing its application beyond these areas. Due to its biodegradability, low cost, renewability, and abundance, starch is considered a "green path" raw material for generating porous substances such as aerogels, biofoams, and bioplastics, which have sparked an academic interest. Existing research has focused on strategies for developing biomaterials from organic polymers (e.g., cellulose), but there has been little research on its polysaccharide counterpart (starch). This review paper highlighted the structure of starch, the context of amylose and amylopectin, and the extraction and modification of starch with their processes and limitations. Moreover, this paper describes nanofillers, intelligent pH-sensitive films, biofoams, aerogels of various types, bioplastics, and their precursors, including drying and manufacturing. The perspectives reveal the great potential of starch-based biomaterials in food, pharmaceuticals, biomedicine, and non-food applications.
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Affiliation(s)
- Kehinde James Falua
- Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada; (K.J.F.); (A.P.); (A.B.-G.)
- Department of Agricultural & Biosystems Engineering, University of Ilorin, Ilorin PMB 1515, Nigeria
| | - Anamol Pokharel
- Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada; (K.J.F.); (A.P.); (A.B.-G.)
| | - Amin Babaei-Ghazvini
- Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada; (K.J.F.); (A.P.); (A.B.-G.)
| | - Yongfeng Ai
- Department of Food and Bioproduct Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada;
| | - Bishnu Acharya
- Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada; (K.J.F.); (A.P.); (A.B.-G.)
- Correspondence:
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Liao X, Liu Y, Han T, Yang M, Liu W, Wang Y, He C, Lu Z. Full-Length Transcriptome Sequencing Reveals Tissue-Specific Gene Expression Profile of Mangrove Clam Geloina erosa. Front Physiol 2022; 13:851957. [PMID: 35514334 PMCID: PMC9065350 DOI: 10.3389/fphys.2022.851957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/18/2022] [Indexed: 11/13/2022] Open
Abstract
Mollusca is the second largest animal phylum and represents one of the most evolutionarily successful animal groups. Geloina erosa, a species of Corbiculidae, plays an important role in mangrove ecology. It is highly adaptable and can withstand environmental pollution and microbial infections. However, there is no reference genome or full-length transcriptome available for G. erosa. This impedes the study of the biological functions of its different tissues because transcriptome research requires reference genome or full-length transcriptome as a reference to improve accuracy. In this study, we applied a combination of Illumina and PacBio single-molecule real-time sequencing technologies to sequence the full-length transcriptomes of G. erosa tissues. Transcriptomes of nine samples obtained from three tissues (hepatopancreas, gill, and muscle) were sequenced using Illumina. Furthermore, we obtained 87,310 full-length reads non-chimeric sequences. After removing redundancy, 22,749 transcripts were obtained. The average Q score of 30 was 94.48%. In total, 271 alternative splicing events were predicted. There were 14,496 complete regions and 3,870 lncRNAs. Differential expression analysis revealed tissue-specific physiological functions. The gills mainly express functions related to filtration, metabolism, identifying pathogens and activating immunity, and neural activity. The hepatopancreas is the main tissue related to metabolism, it also involved in the immune response. The muscle mainly express functions related to muscle movement and control, it contains more energy metabolites that gill and hepatopancreas. Our research provides an important reference for studying the gene expression of G. erosa under various environmental stresses. Moreover, we present a reliable sequence that will provide an excellent foundation for further research on G. erosa.
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Affiliation(s)
- Xin Liao
- Guangxi Key Lab of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Beihai, China
| | - Yunqing Liu
- Guangxi Key Lab of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Beihai, China
| | - Tingyu Han
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Mingliu Yang
- Guangxi Key Lab of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Beihai, China
| | - Wenai Liu
- Guangxi Key Lab of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Beihai, China
| | - Yadi Wang
- Henan Key Laboratory of Big Data Analysis and Processing, Institute of Data and Knowledge Engineering, School of Computer and Information Engineering, Henan University, Kaifeng, China
| | - Chunpeng He
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Zuhong Lu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
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Kumar Sethukali A, Darshaka Jayasena D. Fatty Acid Profiles of Venus Clam ( Marcia opima) and Blood Cockles ( Anadara granosa) Harvested at Different Geographical Locations in the Northwest Coast of Sri Lanka. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2022. [DOI: 10.1080/10498850.2022.2048155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Anand Kumar Sethukali
- Department of Animal Science, Faculty of Agriculture, University of Jaffna, Kilinochchi, Sri Lanka
| | - Dinesh Darshaka Jayasena
- Department of Animal Science, Faculty of Animal Science and Export Agriculture, Uva Wellassa University of Sri Lanka, Badulla, Sri Lanka
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Armitage JM, Toose L, Camenzuli L, Redman AD, Parkerton TF, Saunders D, Wheeler J, Martin A, Vaiopoulou E, Arnot JA. Acritical review and weight of evidence approach for assessing the bioaccumulation of phenanthrene in aquatic environments. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2021; 17:911-925. [PMID: 33620129 PMCID: PMC8451923 DOI: 10.1002/ieam.4401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/01/2020] [Accepted: 02/17/2021] [Indexed: 05/31/2023]
Abstract
Bioaccumulation (B) assessment is challenging because there are various B-metrics from laboratory and field studies, multiple criteria and thresholds for classifying bioaccumulative (B), very bioaccumulative (vB), and not bioaccumulative (nB) chemicals, as well as inherent variability and uncertainty in the data. These challenges can be met using a weight of evidence (WoE) approach. The Bioaccumulation Assessment Tool (BAT) provides a transparent WoE assessment framework that follows Organisation for Economic Co-operation and Development (OECD) principles for performing a WoE analysis. The BAT guides an evaluator through the process of data collection, generation, evaluation, and integration of various lines of evidence (LoE) (i.e., B-metrics) to inform decision-making. Phenanthrene (PHE) is a naturally occurring chemical for which extensive B and toxicokinetics data are available. A B assessment for PHE using the BAT is described that includes a critical evaluation of 74 measured in vivo LoE for fish and invertebrate species from laboratory and field studies. The number of LoE are reasonably well balanced across taxa (i.e., fish and invertebrates) and the different B-metrics. Additionally, in silico and in vitro biotransformation rate estimates and corresponding model-predicted B-metrics are included as corroborating evidence. Application of the BAT provides a consistent, coherent, and scientifically defensible WoE evaluation to conclude that PHE is not bioaccumulative (nB) because the overwhelming majority of the bioconcentration, bioaccumulation, and biomagnification metrics for both fish and invertebrates are below regulatory thresholds. An analysis of the relevant data using fugacity ratios is also provided, showing that PHE does not biomagnify in aquatic food webs. The critical review identifies recommendations to increase the consistency of B assessments, such as improved standardization of B testing guidelines, data reporting requirements for invertebrate studies, and consideration of temperature and salinity effects on certain B-metrics. Integr Environ Assess Manag 2021;17:911-925. © 2021 Concawe. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).
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Affiliation(s)
- James M. Armitage
- ARC Arnot Research and Consulting Inc.TorontoOntarioCanada
- AES Armitage Environmental Science Inc.OttawaOntarioCanada
| | - Liisa Toose
- ARC Arnot Research and Consulting Inc.TorontoOntarioCanada
| | - Louise Camenzuli
- ExxonMobil Petroleum & Chemical B.V.MachelenBelgium
- Member of ConcaweBrusselsBelgium
| | - Aaron D. Redman
- ExxonMobil Petroleum & Chemical B.V.MachelenBelgium
- Member of ConcaweBrusselsBelgium
| | - Tom F. Parkerton
- ExxonMobil Biomedical Sciences Inc.SpringTexasUSA
- Member of ConcaweBrusselsBelgium
| | - David Saunders
- Shell Health, Shell International B.V.The Haguethe Netherlands
- Member of ConcaweBrusselsBelgium
| | - James Wheeler
- Shell Health, Shell International B.V.The Haguethe Netherlands
- Member of ConcaweBrusselsBelgium
| | | | | | - Jon A. Arnot
- ARC Arnot Research and Consulting Inc.TorontoOntarioCanada
- Department of Physical and Environmental SciencesUniversity of Toronto ScarboroughTorontoOntarioCanada
- Department of Pharmacology and ToxicologyUniversity of TorontoTorontoOntarioCanada
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Moniruzzaman M, Sku S, Chowdhury P, Tanu MB, Yeasmine S, Hossen MN, Min T, Bai SC, Mahmud Y. Nutritional evaluation of some economically important marine and freshwater mollusc species of Bangladesh. Heliyon 2021; 7:e07088. [PMID: 34095582 PMCID: PMC8167219 DOI: 10.1016/j.heliyon.2021.e07088] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/15/2021] [Accepted: 05/13/2021] [Indexed: 11/08/2022] Open
Abstract
Molluscs are the most important resources among all the seafood items in South-East Asian countries. However, very little information available on nutritional value of molluscs in these regions. In this study, we evaluated the 7 economically important species of molluscs in terms of proximate composition, amino acids profile, fatty acids profile, cholesterol and heavy metal contents in the bivalves (mussels, oysters, clams and cockles) and univalve (snail) collected from freshwater and marine environments of Bangladesh. The results of the proximate analyses revealed that significantly higher amount of crude protein contents were present in marine water oysters, clams and cockles (59.3 ± 0.3 to 75.4 ± 0.2%) than the freshwater mussels and snail (36.9 ± 0.4 to 49.6 ± 0.6%) on dry matter basis. However, carbohydrate contents were significantly higher in freshwater mussels and snail (30.2 ± 0.9 to 57.3 ± 0.2%) compared to the marine water bivalves (8.1 ± 0.4 to 20.2 ± 0.6%). Crude lipid contents were ranged from 2.5 ± 0.2 to 11.2 ± 0.1% and ash from 11.4 ± 0.1 to 16.8 ± 0.6% among the bivalves and snail species. The amino acid contents were comparatively higher in marine water bivalves than their freshwater counterparts. Saturated fatty acid contents were found to be higher in marine water bivalves than the freshwater mollusc species. The results also show that the omega-3 (eicosapentaenoic acid, EPA and docosahexaenoic acid, DHA) fatty acids were comparatively higher in oysters, clams and cockles in marine water than those in freshwater mussels and snail. However, omega-6 fatty acids like linoleic acid (LA), α- linolenic acid (ALA) and arachidonic acid (ARA) were higher in freshwater mussels and snail than in the marine bivalves. The n-3/n-6 ratio were significantly higher in oysters and cockle species than the other groups of bivalves and snail. The index of atherogenicity and index of thrombogenicity of the mollusc species ranged from 0.74 ± 0.1 to 1.74 ± 0.2 and 0.5 ± 0.1 to 2.6 ± 0.2, respectively. The results show that marine water bivalves contained higher amount of potassium, sodium, iron, chlorine especially oyster species contained significantly higher iodine than the freshwater bivalves and snail. However, freshwater mussels and snail showed significantly higher amount of zinc contents than the marine bivalves. The heavy metal contents such as arsenic, chromium and mercury were absent or present in very tiny amounts among the mollusc species. Significantly higher amount of cholesterol was present in marine bivalves and freshwater snail species than the freshwater mussels. Overall, the results indicate that marine bivalves can be good sources of high quality protein and lipid especially EPA and DHA. On the other hand, freshwater mussels and snails also could be good sources of protein, LA and ARA but scarcity of EPA and DHA.
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Affiliation(s)
- Mohammad Moniruzzaman
- Bangladesh Fisheries Research Institute (BFRI), Mymensingh 2201, Bangladesh.,Department of Animal Biotechnology, Jeju International Animal Research Center (JIA) & Sustainable Agriculture Research Institute (SARI), Jeju National University, Jeju 63243, Republic of Korea
| | - Sonia Sku
- Bangladesh Fisheries Research Institute (BFRI), Mymensingh 2201, Bangladesh
| | - Parvez Chowdhury
- Bangladesh Fisheries Research Institute (BFRI), Mymensingh 2201, Bangladesh
| | | | - Selina Yeasmine
- Bangladesh Fisheries Research Institute (BFRI), Mymensingh 2201, Bangladesh
| | - Md Nazmul Hossen
- Bangladesh Fisheries Research Institute (BFRI), Mymensingh 2201, Bangladesh
| | - Taesun Min
- Department of Animal Biotechnology, Jeju International Animal Research Center (JIA) & Sustainable Agriculture Research Institute (SARI), Jeju National University, Jeju 63243, Republic of Korea
| | - Sungchul C Bai
- FAO World Fisheries University Pilot Program/Feeds and Foods Nutrition Research Center (FFNRC), Pukyong National University, Busan 48547, Republic of Korea
| | - Yahia Mahmud
- Bangladesh Fisheries Research Institute (BFRI), Mymensingh 2201, Bangladesh
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11
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Tushingham S, Barton L, Bettinger RL. How ancestral subsistence strategies solve salmon starvation and the "protein problem" of Pacific Rim resources. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2021; 175:741-761. [PMID: 33830500 DOI: 10.1002/ajpa.24281] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 12/13/2022]
Abstract
This article provides a theoretical treatment of hunter-gatherer diet and physiology. Through a synthesis of nutritional studies, informed by ethno-archaeological data, we examine the risk of protein-rich diets for human survival, and how societies circumvent "salmon starvation" in the northeastern Pacific Rim. Fundamental nutritional constraints associated with salmon storage and consumption counter long-standing assumptions about the engine of cultural evolution in the region. Excess consumption of lean meat can lead to protein poisoning, termed by early explorers "rabbit starvation." While consumption of fats and carbohydrates is widely portrayed as a pathway to "offsetting" protein thresholds, there are true limits to the amount of protein individuals can consume, and constraints are most extreme for smaller individuals, children, and pregnant/nursing mothers. While this problem is not usually perceived as associated with fish, the risk of protein poisoning limits the amount of low-fat fish that people can eat safely. Compared with smaller, mass-harvested species (e.g., eulachon), dried salmon are exceedingly lean. Under certain circumstances fattier foods (small forage fish, marine mammals, whales, and even bears) or carbohydrate-rich plants may have been preferred not just for taste but to circumvent this "dietary protein ceiling." Simply put, "salmon specialization" cannot evolve without access to complimentary caloric energy through fat-rich or carbohydrate-rich resources. By extension, the evolution of storage-based societies requires this problem be solved prior to or in tandem with-salmon intensification. Without such solutions, increased mortality and reproductive rates would have made salmon reliance unsustainable. This insight is in line with genomic research suggesting protein toxicity avoidance was a powerful evolutionary force, possibly linked to genetic adaptations among First Americans. It is also relevant to evaluating the plausibility of other purportedly "focal" economies and informs understanding of the many solutions varied global societies have engineered to overcome physiological protein limits.
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Affiliation(s)
- Shannon Tushingham
- Department of Anthropology, Washington State University, Pullman, Washington, USA
| | | | - Robert L Bettinger
- Department of Anthropology, University of California, Davis, California, USA
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Šimat V, Elabed N, Kulawik P, Ceylan Z, Jamroz E, Yazgan H, Čagalj M, Regenstein JM, Özogul F. Recent Advances in Marine-Based Nutraceuticals and Their Health Benefits. Mar Drugs 2020; 18:E627. [PMID: 33317025 PMCID: PMC7764318 DOI: 10.3390/md18120627] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/29/2020] [Accepted: 12/05/2020] [Indexed: 12/11/2022] Open
Abstract
The oceans have been the Earth's most valuable source of food. They have now also become a valuable and versatile source of bioactive compounds. The significance of marine organisms as a natural source of new substances that may contribute to the food sector and the overall health of humans are expanding. This review is an update on the recent studies of functional seafood compounds (chitin and chitosan, pigments from algae, fish lipids and omega-3 fatty acids, essential amino acids and bioactive proteins/peptides, polysaccharides, phenolic compounds, and minerals) focusing on their potential use as nutraceuticals and health benefits.
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Affiliation(s)
- Vida Šimat
- University Department of Marine Studies, University of Split, Ruđera Boškovića 37, 21000 Split, Croatia;
| | - Nariman Elabed
- Laboratory of Protein Engineering and Bioactive Molecules (LIP-MB), National Institute of Applied Sciences and Technology (INSAT), University of Carthage, Avenue de la République, BP 77-1054 Amilcar, Tunisia;
| | - Piotr Kulawik
- Department of Animal Products Technology, Faculty of Food Technology, University of Agriculture in Cracow, ul. Balicka 122, 30-149 Krakow, Poland;
| | - Zafer Ceylan
- Department of Gastronomy and Culinary Arts, Faculty of Tourism, Van Yüzüncü Yıl University, 65080 Van, Turkey;
| | - Ewelina Jamroz
- Institute of Chemistry, Faculty of Food Technology, University of Agriculture in Cracow, ul. Balicka 122, 30-149 Krakow, Poland;
| | - Hatice Yazgan
- Faculty of Veterinary Medicine, Cukurova University, 01330 Adana, Turkey;
| | - Martina Čagalj
- University Department of Marine Studies, University of Split, Ruđera Boškovića 37, 21000 Split, Croatia;
| | - Joe M. Regenstein
- Department of Food Science, Cornell University, Ithaca, NY 14853-7201, USA;
| | - Fatih Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, 01330 Adana, Turkey
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13
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Apoptosis-Inducing Active Protein from Marine Clam Donax variabilis on NSCLC Cells. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-020-10139-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Marine collagen and its derivatives: Versatile and sustainable bio-resources for healthcare. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:110963. [DOI: 10.1016/j.msec.2020.110963] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 04/06/2020] [Accepted: 04/11/2020] [Indexed: 02/07/2023]
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15
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Collagen Extract Derived from Yeonsan Ogye Chicken Increases Bone Microarchitecture by Suppressing the RANKL/OPG Ratio via the JNK Signaling Pathway. Nutrients 2020; 12:nu12071967. [PMID: 32630655 PMCID: PMC7400104 DOI: 10.3390/nu12071967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/21/2020] [Accepted: 06/29/2020] [Indexed: 12/14/2022] Open
Abstract
Yeonsan Ogye is a traditional Korean chicken breed (Gallus domesticus, GD), with a dominant gene for fibromelanosis, showing entirely black fluffy head feathers, ear lobes, and pupils. GD collagen extract (78.6 g per 100 g total protein) was derived from the flesh of Yeonsan Ogye. The effects of GD collagen on bone mass, microarchitecture, osteogenic, osteoclastogenic differentiations, and function factor expression were investigated in ovariectomized (OVX) rats. GD collagen stimulated osteogenesis in OVX rats and increased tibial bone strength and calcium content. Micro-computed tomography analysis of tibia cross-sections revealed that GD collagen attenuated the OVX-induced changes in trabecular thickness, spacing, and number. GD collagen stimulated alkaline phosphatase activity, bone-specific matrix proteins (alkaline phosphatase (ALP), osteocalcin, collagen type I (COL-I)) and mineralization by activating bone morphogenetic protein 2 (BMP-2)/mothers against decapentaplegic homolog 5 (SMAD5)/runt-related transcription factor 2 (Runx2). GD collagen inhibited osteoclast differentiation and function gene markers (TRAP, cathepsin K) by interfering with the Wnt signaling, increasing OPG production, and reducing the expression of RANKL, TRAP, and cathepsin K. GD collagen promoted osteogenesis by activating the p38 signal pathway and prevented osteoclastogenesis by lowering the RANKL/OPG ratio and blocking the JNK signaling pathway. Dietary supplementation with GD collagen might inhibit osteoclastogenesis, stimulate osteoblastogenesis, and regulate bone metabolism.
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Tabakaeva O, Piekoszewski W, Kalenik T, Maximova S, Tabakaev A, Poleshyk DV, Proniewicz L. Antiradical Activity of Hydrolysates and Extracts from Mollusk A. broughtonii and Practical Application to the Stabilization of Lipids. Foods 2020; 9:foods9030304. [PMID: 32156098 PMCID: PMC7142438 DOI: 10.3390/foods9030304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 11/30/2022] Open
Abstract
The antiradical properties of hydrolysates and hydrothermal extracts of bivalve mollusks (Anadara broughtonii) from the Far Eastern Region of Russia and their influence on lipid oxidation in mayonnaise were investigated. The radical binding activity of hydrolysates and extracts of A. broughtonii varies from 55% to 89%. The maximum radical-binding activity was observed for acid hydrolysates. The antiradical efficiency of acid hydrolysates is 35%–41% of the BHT (butylhydroxytoluene) index. The antiradical activity depends on the (method of) technological and biotechnological processing of raw materials. Acid and enzymatic hydrolysates and hydrothermal extracts of A. broughtonii in mayonnaise slow down the process of oxidation of lipids and hydrolysis of triglycerides. Acid hydrolysates reduce the speed of oxidation and hydrolysis of lipids in mayonnaise more efficiently than the enzymatic hydrolysates.
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Affiliation(s)
- O.V. Tabakaeva
- Department of Food Science and Technology, School of Biomedicine, Far Eastern Federal University, 690000 Vladivostok, Russia
- Correspondence: (O.V.T.); (W.P.)
| | - W. Piekoszewski
- Department of Food Science and Technology, School of Biomedicine, Far Eastern Federal University, 690000 Vladivostok, Russia
- Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University, 30-386 Krakow, Poland
- Correspondence: (O.V.T.); (W.P.)
| | - T.K. Kalenik
- Department of Food Science and Technology, School of Biomedicine, Far Eastern Federal University, 690000 Vladivostok, Russia
| | - S.N. Maximova
- Department of Food Technology, Far Eastern State Technical Fisheries University, 69000 Vladivostok, Russia (D.V.P.)
| | - A.V. Tabakaev
- Department of Food Science and Technology, School of Biomedicine, Far Eastern Federal University, 690000 Vladivostok, Russia
| | - D. V. Poleshyk
- Department of Food Technology, Far Eastern State Technical Fisheries University, 69000 Vladivostok, Russia (D.V.P.)
| | - L. Proniewicz
- Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University, 30-386 Krakow, Poland;
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17
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Wen X, Chen A, Wu Y, Yang Y, Xu Y, Xia W, Zhang Y, Cao Y, Chen S. Comparative evaluation of proximate compositions and taste attributes of three Asian hard clams (Meretrix meretrix) with different shell colors. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2020. [DOI: 10.1080/10942912.2020.1733015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Xinyi Wen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Aihua Chen
- Marine Fisheries Institute of Jiangsu Province, Nantong, China
| | - Yangping Wu
- Marine Fisheries Institute of Jiangsu Province, Nantong, China
| | - Yunyi Yang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yanshun Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Wenshui Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yu Zhang
- Marine Fisheries Institute of Jiangsu Province, Nantong, China
| | - Yi Cao
- Marine Fisheries Institute of Jiangsu Province, Nantong, China
| | - Suhua Chen
- Marine Fisheries Institute of Jiangsu Province, Nantong, China
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18
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Tan KS, Leng X, Zhao Y, Hongxing L, Cheng D, Ma H, Li S, Zheng H. Amino acid variations in polymorphic noble scallops,
Chlamys nobilis. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.14262] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kar Soon Tan
- Key Laboratory of Marine Biotechnology of Guangdong Province Shantou University Shantou China
- Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province Shantou China
- STU‐UMT Joint Shellfish Research Laboratory Shantou University Shantou China
| | - Xuemei Leng
- Key Laboratory of Marine Biotechnology of Guangdong Province Shantou University Shantou China
- Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province Shantou China
- STU‐UMT Joint Shellfish Research Laboratory Shantou University Shantou China
| | - Yang Zhao
- Key Laboratory of Marine Biotechnology of Guangdong Province Shantou University Shantou China
- Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province Shantou China
- STU‐UMT Joint Shellfish Research Laboratory Shantou University Shantou China
| | - Liu Hongxing
- Key Laboratory of Marine Biotechnology of Guangdong Province Shantou University Shantou China
- Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province Shantou China
- STU‐UMT Joint Shellfish Research Laboratory Shantou University Shantou China
| | - Dewei Cheng
- Key Laboratory of Marine Biotechnology of Guangdong Province Shantou University Shantou China
- Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province Shantou China
- STU‐UMT Joint Shellfish Research Laboratory Shantou University Shantou China
| | - Hongyu Ma
- Key Laboratory of Marine Biotechnology of Guangdong Province Shantou University Shantou China
- Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province Shantou China
- STU‐UMT Joint Shellfish Research Laboratory Shantou University Shantou China
| | - Shengkan Li
- Key Laboratory of Marine Biotechnology of Guangdong Province Shantou University Shantou China
- Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province Shantou China
- STU‐UMT Joint Shellfish Research Laboratory Shantou University Shantou China
| | - Huaiping Zheng
- Key Laboratory of Marine Biotechnology of Guangdong Province Shantou University Shantou China
- Mariculture Research Center for Subtropical Shellfish & Algae of Guangdong Province Shantou China
- STU‐UMT Joint Shellfish Research Laboratory Shantou University Shantou China
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19
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Wu J, Guo X, Liu H, Chen L. Isolation and Comparative Study on the Characterization of Guanidine Hydrochloride Soluble Collagen and Pepsin Soluble Collagen from the Body of Surf Clam Shell ( Coelomactra antiquata). Foods 2019; 8:E11. [PMID: 30609640 PMCID: PMC6352192 DOI: 10.3390/foods8010011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 12/20/2018] [Accepted: 12/24/2018] [Indexed: 12/31/2022] Open
Abstract
The aim of this study was to characterize the collagens from the body of surf clam shell (Coelomactra antiquata). Guanidine hydrochloride and pepsin were used to extract collagens. Guanidine hydrochloride soluble collagen (GSC) and pepsin soluble collagen (PSC) were separately isolated from the body of surf clam shell. Results showed that the moisture, protein, carbohydrate, and ash contents of the body of surf clam shell were 82.46%, 11.56%, 3.05%, and 2.38%, respectively, but the fat content was only 0.55%. The yields were 0.59% for GSC and 3.78% for PSC. Both GSC and PSC were composed of α₁ and α₂ chains and a β chain, however, GSC and PSC showed distinct differences from each other and the type I collagen from grass carp muscle on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). GSC and PSC contained glycine as the major amino acid and had imino acid of 150 and 155 residues/1000 residues, respectively. Fourier transform infrared spectroscopy (FTIR) spectra of GSC and PSC revealed the presence of a triple helix. The GSC appeared to have a dense sheet-like film linked by random-coiled filaments and PSC had fine globular filaments under scanning electron microscopy (SEM). The maximum transition temperature (Tmax) of GSC and PSC was 33.05 °C and 31.33 °C, respectively. These results provide valuable scientific information for the texture study and development of surf clam shell or other bivalve mollusks.
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Affiliation(s)
- Jiulin Wu
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China.
| | - Xiaoban Guo
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China.
| | - Hui Liu
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China.
| | - Li Chen
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China.
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