Aquaculture and by-products: Challenges and opportunities in the use of alternative protein sources and bioactive compounds

López‐Pedrouso, María; Lorenzo, José M.; Cantalapiedra, J.; Franco, José M.; Franco, Daniel

doi:10.1016/bs.afnr.2019.11.001

Cited by 34 publications

(26 citation statements)

References 253 publications

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“…Profitable utilization of these fishery by-products is an important area both for research and for fish industry. FPH is a possible outcome of such discards in both marine and freshwater fish, and hence have been the subject of many studies (Garc ıa-Moreno et al 2017;Giannetto et al 2020;L opez-Pedrouso et al 2020).…”

Section: Sources Of Fphmentioning

confidence: 99%

“…In addition, the molecular structure of FPH peptides and identification of the exact sequence of amino acids responsible for the bioactivity in the FPH peptides should also be improved (López‐Pedrouso et al . 2020). This knowledge can be used to optimize the production conditions, refine the generation of peptides of interest and to better understand the effective bioactive peptides in aquadiets on growth and health status of the target species.…”

Section: Future Research Potentialmentioning

confidence: 99%

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Enzymatic fish protein hydrolysates in finfish aquaculture: a review

Siddik

Howieson

Fotedar

et al. 2020

Reviews in Aquaculture

132

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In intensive farming systems, fish are held at high densities, which may increase stress, leading to susceptibility to diseases that result in economic losses. Therefore, effective feeding practices incorporating health-promoting compounds such as proteins, hydrolysates and bioactive peptides that can stimulate the defence mechanisms of fish and achieve better growth are some of the priorities for sustainable aquaculture development. Globally, the fish processing industries generate and discard a large volume of waste every year, estimated at up to 60% of the harvested biomass. This waste can be converted to value-added products such as fish protein hydrolysate (FPH) with the addition of various proteolytic enzymes. FPH from fish processing waste including skin, heads, muscle, viscera, liver and bones is a good source of protein, amino acids, peptides and antioxidants and has been found to possess desirable functional and bioactive peptides. A moderate inclusion of FPH in aquafeeds has the potential to improve growth, feed utilization, immune functions and disease resistance of fish. Production of FPH, targeted to more precise molecular weight ranges, has superior functionalities that are in high demand. With interest in FPH as an aquafeed supplement, this review aimed to summarize the source, production processes and functional properties of FPH and the reported impact of FPH in aquafeed supplement on fish growth, survival, feed utilization, immune response and disease resistance. Possible limitations of using FPH and future research potential as an opportunity for the use of processing fish waste are also discussed.

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Section: Sources Of Fphmentioning

confidence: 99%

Section: Future Research Potentialmentioning

confidence: 99%

Enzymatic fish protein hydrolysates in finfish aquaculture: a review

Siddik

Howieson

Fotedar

et al. 2020

Reviews in Aquaculture

132

View full text Add to dashboard Cite

show abstract

“…The challenges of sustainable seafood processing are linked to reducing environmental pollution, conservation of water, and prevent losses of nutrients. Improving waste utilization is essential for a sustainable industry to prevent or minimize the environmental impact (López-Pedrouso et al, 2020). The problems of environmental hazards and nutrient losses facing the seafood industry can be addressed by measures such as selective trawling to reduce by-catches, appropriate treatments of wastes and effluents, and valorization of wastes by recovery of useful ingredients.…”

Section: Measures For Sustainable Seafood Processingmentioning

confidence: 99%

Valorization of Seafood Processing Discards: Bioconversion and Bio-Refinery Approaches

Venugopal

2021

Front. Sustain. Food Syst.

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The seafood industry generates large volumes of waste. These include processing discards consisting of shell, head, bones intestine, fin, skin, voluminous amounts of wastewater discharged as effluents, and low-value under-utilized fish, which are caught as by-catch of commercial fishing operations. The discards, effluents, and by-catch are rich in nutrients including proteins, amino acids, lipids containing good proportions of polyunsaturated fatty acids (PUFA), carotenoids, and minerals. The seafood waste is, therefore, responsible for loss of nutrients and serious environmental hazards. It is important that the waste is subjected to secondary processing and valorization to address the problems. Although chemical processes are available for waste treatment, most of these processes have inherent weaknesses. Biological treatments, however, are environmentally friendly, safe, and cost-effective. Biological treatments are based on bioconversion processes, which help with the recovery of valuable ingredients from by-catch, processing discards, and effluents, without losing their inherent bioactivities. Major bioconversion processes make use of microbial fermentations or actions of exogenously added enzymes on the waste components. Recent developments in algal biotechnology offer novel processes for biotransformation of nutrients as single cell proteins, which can be used as feedstock for the recovery of valuable ingredients and also biofuel. Bioconversion options in conjunction with a bio-refinery approach have potential for eco-friendly and economical management of seafood waste that can support sustainable seafood production.

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“…For this reason, consumers have started searching for healthier options, trying to change their lifestyle and looking for more convenient foods [ 2 ]. In this sense, the nutrients and bioactive compounds found in food by-products can be excellent sources for the development of new food products to improve the health and well-being of consumers [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Omega-3-Rich Oils from Marine Side Streams and Their Potential Application in Food

Pateiro¹,

Domínguez²,

Varzakas

et al. 2021

Marine Drugs

Self Cite

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Rapid population growth and increasing food demand have impacts on the environment due to the generation of residues, which could be managed using sustainable solutions such as the circular economy strategy (waste generated during food processing must be kept within the food chain). Reusing discarded fish remains is part of this management strategy, since they contain high-value ingredients and bioactive compounds that can be used for the development of nutraceuticals and functional foods. Fish side streams such as the head, liver, or skin or the cephalothorax, carapace, and tail from shellfish are important sources of oils rich in omega-3. In order to resolve the disadvantages associated with conventional methods, novel extraction techniques are being optimized to improve the quality and the oxidative stability of these high-value oils. Positive effects on cardiovascular and vision health, diabetes, cancer, anti-inflammatory and neuroprotective properties, and immune system improvement are among their recognized properties. Their incorporation into different model systems could contribute to the development of functional foods, with market benefits for consumers. These products improve the nutritional needs of specific population groups in a scenario where noncommunicable diseases and pandemic crises are responsible for several deaths worldwide.

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Aquaculture and by-products: Challenges and opportunities in the use of alternative protein sources and bioactive compounds

Cited by 34 publications

References 253 publications

Enzymatic fish protein hydrolysates in finfish aquaculture: a review

Enzymatic fish protein hydrolysates in finfish aquaculture: a review

Valorization of Seafood Processing Discards: Bioconversion and Bio-Refinery Approaches

Omega-3-Rich Oils from Marine Side Streams and Their Potential Application in Food

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