1
|
Meidell LS, Slizyte R, Mozuraityte R, Carvajal AK, Rustad T, Standal IB, Kopczyk M, Falch E. Silage for upcycling oil from saithe ( Pollachius virens) viscera - Effect of raw material freshness on the oil quality. Heliyon 2023; 9:e16972. [PMID: 37342572 PMCID: PMC10277516 DOI: 10.1016/j.heliyon.2023.e16972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 05/24/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023] Open
Abstract
The main objective of this study was to investigate how the freshness of saithe (Pollachius virens) viscera affected the quality, composition and yield of oil obtained by silaging. Minced viscera with and without liver were stored separately for up to 3 days at 4 °C before silaging at pH 3.8 for 6 days at 10 °C. An antioxidant mixture was added to evaluate the effect on the lipid oxidation. Oil was extracted thermally from untreated raw material during storage (day 0-3) and after silaging. For oil obtained after silaging of viscera with liver, the oil yields increased significantly when the raw material was stored for more than one day prior to the treatment. Use of fresh raw material (collected at day 0) led to significantly lower oxidation compared to longer raw material storage. After one day of storage, the oxidation was less dependent on the freshness. Silaging with antioxidants resulted in significantly lower formation of oxidation products compared to acid without antioxidants and the most significant differences were observed after one day of storage. Contents of docosahexaenoic acid (DHA) and total omega-3 fatty acids decreased significantly when the raw material was stored for 1-3 days prior to silaging compared to fresh raw material. Results obtained by high resolution nuclear magnetic resonance (NMR) spectroscopy indicated that oxidation of esterified DHA might explain the DHA decrease. The free fatty acid content was highest when fresh raw material was used and was most likely affected by the formation of cholesteryl esters observed in NMR spectra after longer storage. The study shows that although the oil quality is reduced during silaging, processing shortly after catch and use of antioxidants can optimize the quality resulting in less oxidized oil richer in omega-3 fatty acids.
Collapse
Affiliation(s)
- Line Skontorp Meidell
- Norwegian University of Science and Technology (NTNU), Sverres gate 12, 7012, Trondheim, Norway
| | - Rasa Slizyte
- SINTEF Ocean, Brattørkaia 17C, 7010, Trondheim, Norway
| | | | | | - Turid Rustad
- Norwegian University of Science and Technology (NTNU), Sverres gate 12, 7012, Trondheim, Norway
| | | | - Monika Kopczyk
- Scanbio Marine Group, Bjugnveien 242, 7160, Bjugn, Norway
| | - Eva Falch
- Norwegian University of Science and Technology (NTNU), Sverres gate 12, 7012, Trondheim, Norway
| |
Collapse
|
2
|
Haseeb-Ur-Rehman M, Munshi AB, Atique U, Kalsoom S. Metal pollution and potential human health risk assessment in major seafood items (fish, crustaceans, and cephalopods). Mar Pollut Bull 2023; 188:114581. [PMID: 36709603 DOI: 10.1016/j.marpolbul.2023.114581] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 12/30/2022] [Accepted: 01/02/2023] [Indexed: 06/18/2023]
Abstract
Global seafood consumers are increasingly concerned about and prefer safe, high-quality, and hazard-free seafood products. This study investigated various Pakistani processing plants supplying the international market and explored commercially important seafood species (fish, crustaceans, and cephalopods) for metal content, contamination, and potential health risks. The results showed that the metal concentrations differed significantly among species. The metals loads were as Fe > Cu > Zn > Mn > Pb > Ni > Cd > Hg. Contamination factor (CF), pollution load index (PLI), and metal pollution index (MPI), verified negligible contamination of seafood. As assessed by the estimated daily intake, target hazard quotient, hazard index, and carcinogenic risk, the potential human health risks associated with the contaminated seafood were lower than the perceived threat. In conclusion, seafood processing plants export products that meet international food safety standards and are safe for consumers worldwide.
Collapse
Affiliation(s)
| | - Alia Bano Munshi
- Centre of Excellence in Marine Biology, University of Karachi, Karachi, Pakistan
| | - Usman Atique
- Department of Bioscience and Biotechnology, Chungnam National University, South Korea.
| | - Shahida Kalsoom
- Education Department, Statistics, Government APWA Post Graduate College for Women, Lahore, Pakistan
| |
Collapse
|
3
|
Al Khawli F, Martí-Quijal FJ, Ferrer E, Ruiz MJ, Berrada H, Gavahian M, Barba FJ, de la Fuente B. Aquaculture and its by-products as a source of nutrients and bioactive compounds. Adv Food Nutr Res 2020; 92:1-33. [PMID: 32402442 DOI: 10.1016/bs.afnr.2020.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Underutilized marine resources (e.g., algae, fish, and shellfish processing by-products), as sustainable alternatives to livestock protein and interesting sources of bioactive compounds, have attracted the attention of the researchers. Aquatic products processing industries are growing globally and producing huge amounts of by-products that often discarded as waste. However, recent studies pointed out that marine waste contains several valuable components including high-quality proteins, lipids, minerals, vitamins, enzymes, and bioactive compounds that can be used against cancer and some cardiovascular disorders. Besides, previously conducted studies on algae have shown the presence of some unique biologically active compounds and valuable proteins. Hence, this chapter points out recent advances in this area of research and discusses the importance of aquaculture and fish processing by-products as alternative sources of proteins and bioactive compounds.
Collapse
Affiliation(s)
- Fadila Al Khawli
- Nutrition, Food Science and Toxicology Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
| | - Francisco J Martí-Quijal
- Nutrition, Food Science and Toxicology Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain.
| | - Emilia Ferrer
- Nutrition, Food Science and Toxicology Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
| | - María-José Ruiz
- Nutrition, Food Science and Toxicology Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
| | - Houda Berrada
- Nutrition, Food Science and Toxicology Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
| | - Mohsen Gavahian
- Product and Process Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan, ROC.
| | - Francisco J Barba
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
| | - Beatriz de la Fuente
- Nutrition, Food Science and Toxicology Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
| |
Collapse
|
4
|
Abstract
Commercial fishery processing results in discards up to 50% of the raw material, consisting of scales, shells, frames, backbones, viscera, head, liver, skin, belly flaps, dark muscle, roe, etc. Besides, fishing operations targeted at popular fish and shellfish species also result in landing of sizeable quantity of by-catch, which are not of commercial value because of their poor consumer appeal. Sensitivity to rapid putrefaction of fishery waste has serious adverse impact on the environment, which needs remedial measures. Secondary processing of the wastes has potential to generate a number of valuable by-products such as proteins, enzymes, carotenoids, fat, and minerals, besides addressing environmental hazards. Fishery wastes constitute good sources of enzymes such as proteases, lipases, chitinase, alkaline phosphatase, transglutaminase, hyaluronidase, acetyl glycosaminidase, among others. These enzymes can have diverse applications in the seafood industry, which encompass isolation and modification of proteins and marine oils, production of bioactive peptides, acceleration of traditional fermentation, peeling and deveining of shellfish, scaling of finfish, removal of membranes from fish roe, extraction of flavors, shelf life extension, texture modification, removal of off-odors, and for quality control either directly or as components of biosensors. Enzymes from fish and shellfish from cold habitats are particularly useful since they can function comparatively at lower temperatures thereby saving energy and protecting the food products. Potentials of these applications are briefly discussed.
Collapse
Affiliation(s)
- V Venugopal
- Seafood Technology Section, Bhabha Atomic Research Centre, Mumbai, India.
| |
Collapse
|
5
|
Cui W, Sun Y, Xu A, Gao R, Gong L, Zhang L, Jiang M. Hepatitis E seroprevalence and related risk factors among seafood processing workers: a cross-sectional survey in Shandong Province, China. Int J Infect Dis 2016; 49:62-6. [PMID: 27265612 DOI: 10.1016/j.ijid.2016.05.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/26/2016] [Accepted: 05/27/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE This study aimed to assess the seroprevalence of hepatitis E virus (HEV) infection and the potential risk factors for acquiring HEV infection in the seafood processing factories in Yantai City of Shandong Province, China. METHODS A cross-sectional study was conducted in five randomly selected seafood processing factories in Yantai City. Subjects were 15-66 years of age and were raw seafood processing workers, semi-finished products processing workers, and administrative staff, etc. Each participant completed a structured questionnaire and agreed to blood drawing. Anti-HEV IgG antibody was detected in the blood samples by ELISA method. RESULTS A total of 1028 of 1044 eligible workers were tested for HEV IgG antibody (response rate 98.5%). The prevalence of HEV IgG seropositivity was found to be 22.20%. Occupation was significantly associated with anti-HEV IgG antibody seropositivity (p<0.05). Subjects who had direct contact with raw seafood had a higher anti-HEV IgG antibody prevalence (32.54%) than the semi-finished products processing workers (24.74%) and less exposed group (11.85%). HEV seroprevalence in the workers showed an increasing trend with the increase in working years, and this phenomenon was most obvious in raw seafood processing workers. CONCLUSIONS There is a higher risk of HEV infection in those who have direct contact with raw seafood. This study will help identify the risk factors for HEV infection and provide guidance on controlling HEV infection in the seafood processing occupations.
Collapse
Affiliation(s)
- Weihong Cui
- Yantai Center for Disease Control and Prevention, 17 Fuhou Road, Yantai, Shandong 264003, PR China
| | - Yuan Sun
- Yantai Center for Disease Control and Prevention, 17 Fuhou Road, Yantai, Shandong 264003, PR China
| | - Aiqiang Xu
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China
| | - Rihong Gao
- Yantai Center for Disease Control and Prevention, 17 Fuhou Road, Yantai, Shandong 264003, PR China
| | - Lianfeng Gong
- Yantai Center for Disease Control and Prevention, 17 Fuhou Road, Yantai, Shandong 264003, PR China
| | - Li Zhang
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China
| | - Mei Jiang
- Yantai Center for Disease Control and Prevention, 17 Fuhou Road, Yantai, Shandong 264003, PR China.
| |
Collapse
|