Comparative Life Cycle Assessment of EPA and DHA Production from Microalgae and Farmed Fish

Chandra, T. Sarat; Padamati, Ramesh Babu

doi:10.3390/cleantechnol3040042

Cited by 11 publications

(3 citation statements)

References 28 publications

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“…Since microalgal DHA + EPA is comparable with fish, replacing the fish oil with microalgal oil can be viable and sustainable [34]. This will thereby minimize the pressure of ocean fisheries and preserve the biodiversity [35]. Table 1 shows the fatty acid profile of some microalgal species.…”

Section: Current Sources Of Dhamentioning

confidence: 99%

Driving into the Factory of Docosahexaenoic Acid (DHA), Microalgae

Hosseinzadeh Gharajeh,

Amin Hejazi

2024

Microalgae - Current and Potential Applications

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Microalgae, with their rapid growth and cost-effective cultivation, have emerged as a potent source of bioactive compounds, including lipids. Docosahexaenoic acid (DHA), an omega-3 polyunsaturated fatty acid, is an important fraction of microalgal lipids, which holds a crucial place in human nutrition and health. This chapter underscores microalgae’s potential as a prolific factory for DHA production. Limited availability of conventional sources has stimulated interest in sustainable alternatives, with microalgae proving to be an effective solution. Microalgae can synthesize DHA de novo, eliminating the need for resource-intensive intermediaries. Optimization of cultivation conditions, including light intensity and nutrient availability, has boosted DHA production. Genetic engineering techniques enhance yields by overexpressing key biosynthetic genes, while innovative cultivation strategies such as mixotrophic and phototrophic modes increase biomass accumulation and DHA content. Biorefinery approaches utilize residual biomass for value-added product production, enhancing overall sustainability. By harnessing microalgae’s inherent capabilities through cultivation optimization, genetic manipulation, and innovative processing, a reliable and sustainable DHA source is established, promoting enhanced human health and nutrition to meet the growing demand for this essential nutrient.

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Section: Current Sources Of Dhamentioning

confidence: 99%

Driving into the Factory of Docosahexaenoic Acid (DHA), Microalgae

Hosseinzadeh Gharajeh,

Amin Hejazi

2024

Microalgae - Current and Potential Applications

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“…For a more techno-economical analysis on the same influencing factors, see Chauton et al ( 2015 ). From the environmental perspective, a focus on EPA produced from microalgae via heterotrophy is also desirable since studies have shown that the primary energy demand and environmental impacts of PUFA production from microalgae via heterotrophy were significantly lower compared to PUFA produced via photoautotrophy (Togarcheti and Padamati 2021 ) .…”

Section: Industrial Production and Market Valuementioning

confidence: 99%

Factors impacting the microbial production of eicosapentaenoic acid

Sousa,

Carvalho,

Gomes

2024

Appl Microbiol Biotechnol

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The increasing applications for eicosapentaenoic acid (EPA) and the potential shortfall in supply due to sustainability and contamination issues related with its conventional sources (i.e., fish oils; seafood) led to an extensive search for alternative and sustainable sources, as well as production processes. The present mini-review covers all the steps involved in the production of EPA from microorganisms, with a deeper focus on microalgae. From production systems to downstream processing, the most important achievements within each area are briefly highlighted. Comparative tables of methodologies are also provided, as well as additional references of recent reviews, so that readers may deepen their knowledge in the different issues addressed. Key points • Microorganisms are more sustainable alternative sources of EPA than fish. • Due to the costly separation from DHA, species that produce only EPA are preferable. • EPA production can be optimised using non-genetic and genetic tailoring engineering.

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“…Microalgal production of EPA and DHA was evaluated using heterotrophic or photoautotrophic conditions, and from farmed fish. 95 Algal pathways to these essential unsaturated fatty acids are needed, as the amount extracted from fish is not meeting the demand. Increase consumption of EPA and DHA may lead to overfishing, which results in habitat destruction and increased pressure on fisheries.…”

Section: Cultivation Harvesting and Processing Of Microalgaementioning

confidence: 99%