Sustainable development of microalgal biotechnology in coastal zone for aquaculture and food

Lu, Xin; Cui, Yulin; Chen, Yuting; Xiao, Yupeng; Song, Xiaojin; Gao, Fengzheng; Xiang, Yun; Hou, Cong-Cong; Wang, Jun; Gan, Qinhua; Zheng, Xing; Lu, Yandu

doi:10.1016/j.scitotenv.2021.146369

Cited by 21 publications

(12 citation statements)

References 30 publications

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“…This species was evaluated for its economic viability for the production of PUFA and essential amino acids as food additives and performance in different scale cultivation systems from close photobioreactors to open race ponds at coastal zones under geographically specific conditions. The evaluation highlighted an appreciable profitability of MEM25 production for human and animal food using the open raceway pond systems [272]. Although the evaluation was not specific for n-3 PUFA production, the available information indicates great geographical differences of the socioeconomic impact of the microalgae industry worldwide, in a region or in a country.…”

Section: Socio-economic Sustainabilitymentioning

confidence: 99%

“…Coastal zones, particularly the locations around the equator, are considered to be the optimal cultivation sites due to stable annual light, temperature, and ready availability of seawater. A recent study screened a subtropical microalgal collection and identified a Chlorella strain MEM25 with a robust growth in a wide range of salinities, temperatures, and light intensities [272]. This species was evaluated for its economic viability for the production of PUFA and essential amino acids as food additives and performance in different scale cultivation systems from close photobioreactors to open race ponds at coastal zones under geographically specific conditions.…”

Section: Socio-economic Sustainabilitymentioning

confidence: 99%

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Health Benefits, Food Applications, and Sustainability of Microalgae-Derived N-3 PUFA

Liu¹,

Ren²,

Fan³

et al. 2022

Foods

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Today’s consumers are increasingly aware of the beneficial effects of n-3 PUFA in preventing, delaying, and intervening various diseases, such as coronary artery disease, hypertension, diabetes, inflammatory and autoimmune disorders, neurodegenerative diseases, depression, and many other ailments. The role of n-3 PUFA on aging and cognitive function is also one of the hot topics in basic research, product development, and clinical applications. For decades, n-3 PUFA, especially EPA and DHA, have been supplied by fish oil and seafood. With the continuous increase of global population, awareness about the health benefits of n-3 PUFA, and socioeconomic improvement worldwide, the supply chain is facing increasing challenges of insufficient production. In this regard, microalgae have been well considered as promising sources of n-3 PUFA oil to mitigate the supply shortages. The use of microalgae to produce n-3 PUFA-rich oils has been explored for over two decades and some species have already been used commercially to produce n-3 PUFA, in particular EPA- and/or DHA-rich oils. In addition to n-3 PUFA, microalgae biomass contains many other high value biomolecules, which can be used in food, dietary supplement, pharmaceutical ingredient, and feedstock. The present review covers the health benefits of n-3 PUFA, EPA, and DHA, with particular attention given to the various approaches attempted in the nutritional interventions using EPA and DHA alone or combined with other nutrients and bioactive compounds towards improved health conditions in people with mild cognitive impairment and Alzheimer’s disease. It also covers the applications of microalgae n-3 PUFA in food and dietary supplement sectors and the economic and environmental sustainability of using microalgae as a platform for n-3 PUFA-rich oil production.

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Section: Socio-economic Sustainabilitymentioning

confidence: 99%

Section: Socio-economic Sustainabilitymentioning

confidence: 99%

Health Benefits, Food Applications, and Sustainability of Microalgae-Derived N-3 PUFA

Liu¹,

Ren²,

Fan³

et al. 2022

Foods

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“…Dietary fatty acids show competitive interaction in the metabolism of polyunsaturated fatty acids (PUFAs) in tissues in fish, and microalgae are considered promising sustainable sources of omega‐3 PUFAs. The genus of fschizochytrium is among the most frequently used ingredients in aquaculture feed; there are differences in EFA requirements for different species and metabolic adaptation to different habitats (Lu et al, 2021; Monroig et al, 2022). Formulated aquaculture feeds are the most expensive animal feeds in the market.…”

Section: Types Of Natural Feed Additives and Their Functions In Aquac...mentioning

confidence: 99%

A glimpse on influences of feed additives in aquaculture

Marimuthu¹,

Shanmugam

Sarawagi

et al. 2022

eFood

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Aquaculture is one of the most developing sectors worldwide, and it contributes to enhancing the global production. The application of natural feed additives is an external source of aquaculture production due to the ban on antibiotics as a growth promotor as well as their harmful effects on the host, and costeffectiveness. Even consumer concerns those antibiotics can cause the water quality and growth instead of growth promoters of natural feed additives to improve the aquaculture production. The role of feed additives is to control the pathogenic microbes, enhance their growth, immune stimulation, and ensure water quality. For these reasons, several types of dietary feed additives are used in the livestock sector, such as essential oil, essential fatty acid, probiotics, prebiotics, symbiotic, and exogenous enzymes, but here, the feed additives of probiotics' most relevant applications in the aquaculture field in terms of modes of action such as strengthening the immune response, competition of binding sites, production of antipathogenic substances, and growth performance competition for nutrition are described. These additives are considered to be useful for their specific medicinal properties and eco-friendly metabolism in the digestive system. This review describes the role of various feed additives and their relevance to aquaculture production quality.

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“…These radical changes would threaten the sustainability of global food system undermining the food demand mostly in the least developed countries 2 . Therefore, a multi‐level innovative approach in alignment with the Sustainable Development Goals (SDGs) is required to alleviate the present scenario of food insecurity, poverty, and need for drinkable water across the rural–urban gamut 3 . Promoting capital‐intensive and climate smart agricultural investments like adoption of integrated crop‐livestock and aquaculture‐crop systems, or nutrition‐sensitive agriculture, as well as implementing sustainable forest and fisheries management are the few measures which have been adopted to deal with the protracted crises of the developing countries 4,5 .…”

Section: Introductionmentioning

confidence: 99%

Diatom‐assisted aquaculture: Paving the way towards sustainable economy

Bhattacharjya,

Marella,

Kumar

et al. 2023

Reviews in Aquaculture

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With decreasing world oceans fish stock there is rapid increase in aquaculture production. To meet this demand, there is an urgent need to improve existing aquaculture technologies and make the system more sustainable and economically feasible. Diatoms are unicellular protists that are present ubiquitously in freshwater and marine habitats and are responsible for 40% of marine and 20% of net global primary productivity. They are the most preferred microalgae for production of live feeds in mariculture due to their suitable size, easy digestibility, and optimum nutritional content. Diatoms biosynthesize a range of bioactive compounds like lipids, polysaccharides, proteins, pigments, and vitamins which can both promote the health and survival of aquatic species like fishes, bivalves, and shrimps. As the main prerequisite to attain sustainability is to reduce pollutants from aquaculture wastewater, diatoms have long been employed for remediating and utilizing the eutrophic nutrients as a growth supplement which otherwise might be detrimental to aquaculture species. Though many recent studies have highlighted the significance of diatoms in aquaculture, its dual contribution in maintaining the nutritional content of the feed as well as in improving the water quality should be coupled with its unique mechanisms and adaptability. Thus, the current review addresses the bottlenecks in aquaculture industry and the prospects of implementing diatom‐based bioremediation and biomass valorization for the production of live feeds with the hindsight of establishing circular bioeconomy.

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Sustainable development of microalgal biotechnology in coastal zone for aquaculture and food

Cited by 21 publications

References 30 publications

Health Benefits, Food Applications, and Sustainability of Microalgae-Derived N-3 PUFA

Health Benefits, Food Applications, and Sustainability of Microalgae-Derived N-3 PUFA

A glimpse on influences of feed additives in aquaculture

Diatom‐assisted aquaculture: Paving the way towards sustainable economy

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