Microalgae in aquafeeds for a sustainable aquaculture industry

Shah, Mahfuzur Rahman; Lutzu, Giovanni Antonio; Alam, Md. Asraful; Sarker, Pallab K.; Chowdhury, M A Kabir; Parsaeimehr, Ali; Liang, Yuanmei; Daroch, Maurycy

doi:10.1007/s10811-017-1234-z

Cited by 333 publications

(248 citation statements)

References 117 publications

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“…However, most microalgae studied have been cultivated under pristine laboratory conditions using clean water, chemically-defined nutrient media and pure CO 2 ; whereas, industrial farming of microalgae is highly likely to utilize industrial flue-gas emissions and/or municipal or agro-industrial wastewaters as more cost-effective crop inputs. As such, safety and efficacy evaluation of microalgaebased ingredients for salmonids feeds must be made a priority consideration in the future, both by producers and regulatory bodies, as reviewed by Shah et al [8]. As a starting point, several safety standards for microalgae consumption by humans was recently summarized by Matos [9]; including microbiological and insect contamination limits, and these standards could be reviewed and verified for their suitability for salmonid aquafeed applications.…”

Section: +mentioning

confidence: 99%

The Potential for ‘Next-Generation’, Microalgae-Based Feed Ingredients for Salmonid Aquaculture in Context of the Blue Revolution

Tibbetts¹

2018

Microalgal Biotechnology

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Microalgae-based ingredients have potential to ensure continued growth of salmonid a q u a c u l t u r ef o rg l o b a ls u s t a i n a b l ef o o ds e c u r i t yi nt h eb l u ee c o n o m y .A l g a lb i o r e f ineries must valorize the entire crop to grow profitable microalgae-based economies. With massive growth and demand for novel sustainable ingredients, farmed salmonid feed sectors are highly promising areas to focus on. Microalgae-based ingredients for salmonid feeds may have market advantages in terms of lower input costs, aerial footprint, wastewater remediation benefits and carbon credits for industrial CO 2 conversion. A handful of microalgae-based ingredients have been proposed as candidates to supply well-balanced nutrients and immunostimulatory compounds. However, technical gaps exist and need addressing before the industry could economically incorporate microalgae-based ingredients into commercial feeds. Current knowledge on comprehensive biochemical composition is incomplete, highly heterogeneous, and information on their nutritional value is scattered and/or inconsistent. The aim of this chapter is to consolidate relatively fragmented data on biochemical composition and nutritional value of microalgae-based ingredients focusing on farmed salmonid feeds. Presented are discussions on the potential for such 'next-generation' ingredients, opportunities/challenges for their use and a compendium of studies evaluating their performance in feeds for economically relevant farmed salmonids, including rainbow trout (Oncorhynchus mykiss), Arctic charr (Salvelinus alpinus) and Atlantic salmon (Salmo salar).

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Section: +mentioning

confidence: 99%

The Potential for ‘Next-Generation’, Microalgae-Based Feed Ingredients for Salmonid Aquaculture in Context of the Blue Revolution

Tibbetts¹

2018

Microalgal Biotechnology

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“…The potential of using algae meals and extracts against lipid oxidation in foods and oxidative stress in target tissues has been widely researched. Microalgae species such as Chlorella sp., Haematococcus pluvialis , Scenedesmus sp., Chlamydomonas , Spirulina sp., Schizochytrium sp., Porphyridium aerugineum , Nannochloropsis granulata were evaluated in fish feeds (Shah et al, ). Spirulina is an economical microalgae which is easily produced in aquaculture, stands out as a balanced amino acid content of 55%–70% protein, and is among the alternative protein sources in fish feed (Hasan & Chakrabarti, ).…”

Section: Introductionmentioning

confidence: 99%

Dietary Spirulina ( Arthrospira platensis , Gomont, 1892) improved the flesh quality and shelf life of rainbow trout ( Oncorhynchus mykiss , Walbaum, 1792) fed fish meal or plant‐based diet

et al. 2019

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This study was carried out to determine the effects of fish meal or plant‐based diets with supplementation of dietary Spirulina (4%) on shelf life of rainbow trout, Oncorhynchus mykiss. Rainbow trout (initial weight: ~135 g) were fed four experimental diets (fish meal‐based FM, plant meal‐based‐PM, Spirulina included at 4% of fish meal‐based‐FM/S or plant meal‐based PM/S) for 12 weeks. After the feeding trial, trout were stored on ice at 4°C for 0, 5, 10, 15 and 20 days. The chemical, microbiological and sensory analyses of fish were subjected to each sampling days for flesh quality evaluation. TBA of supplemented dietary Spirulina was lower than that non‐supplemented dietary Spirulina. pH values of all groups decreased significantly between days 0 and 20 during the storage period (p < 0.05). Luminosity (L*) value of all groups increased with time in storage period. Fish fed Spirulina supplemented diets showed an increased red/green tonality (a*) (p < 0.05) compared with fish fed non‐Spirulina supplemented diets. In the end of the storage period, the total coliforms values of fish fed with PM/S diet lower than that of other all diets. In conclusion, dietary Spirulina could be allowed the shelf life of the rainbow trout to be extended.

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“…It is of biotechnological interest, for studies within algal physiology and metabolism and as a model test species in toxicology. The potential of P. tricornutum as a source of biomass for biofuels, antimicrobial agents, health‐promoting substances and food or feed components in general is subject to intensive study (Bajpai, ; Garcia et al., ; Haro et al., ; Shah et al., ). For example, the alga produces many compounds of high nutritional value, such as essential fatty acids and carotenoids (Zhang et al., ; Garcia et al., ).…”

Section: Assessmentmentioning

confidence: 99%

Update of the list of QPS‐recommended biological agents intentionally added to food or feed as notified to EFSA 10: Suitability of taxonomic units notified to EFSA until March 2019

Koutsoumanis¹,

Allende²,

Álvarez‐Ordóñez³

et al. 2019

EFS2

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The qualified presumption of safety (QPS) procedure was developed to provide a harmonised generic preevaluation to support safety risk assessments of biological agents performed by EFSA's Scientific Panels. The taxonomic identity, body of knowledge, safety concerns and antimicrobial resistance were assessed. Safety concerns identified for a taxonomic unit (TU) are, where possible and reasonable in number, reflected by 'qualifications' which should be assessed at the strain level by the EFSA's Scientific Panels. During the current assessment, no new information was found that would change the previously recommended QPS TUs and their qualifications. The list of microorganisms notified to EFSA from applications for market authorisation was updated with 47 biological agents, received between October 2018 and March 2019. Of these, 19 already had QPS status, 20 were excluded from the QPS exercise by the previous QPS mandate (11 filamentous fungi) or from further evaluations within the current mandate (9 notifications of Escherichia coli). Sphingomonas elodea, Gluconobacter frateurii, Corynebacterium ammoniagenes, Corynebacterium casei, Burkholderia ubonensis, Phaeodactylum tricornutum, Microbacterium foliorum and Euglena gracilis were evaluated for the first time. Sphingomonas elodea cannot be assessed for a possible QPS recommendation because it is not a valid species. Corynebacterium ammoniagenes and Euglena gracilis can be recommended for the QPS list with the qualification 'for production purposes only'. The following TUs cannot be recommended for the QPS list: Burkholderia ubonensis, due to its potential and confirmed ability to generate biologically active compounds and limited of body of knowledge; Corynebacterium casei, Gluconobacter frateurii and Microbacterium foliorum, due to lack of body of knowledge; Phaeodactylum tricornutum, based on the lack of a safe history of use in the food chain and limited knowledge on its potential production of bioactive compounds with possible toxic effects.

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Microalgae in aquafeeds for a sustainable aquaculture industry

Cited by 333 publications

References 117 publications

The Potential for ‘Next-Generation’, Microalgae-Based Feed Ingredients for Salmonid Aquaculture in Context of the Blue Revolution

The Potential for ‘Next-Generation’, Microalgae-Based Feed Ingredients for Salmonid Aquaculture in Context of the Blue Revolution

Dietary Spirulina ( Arthrospira platensis , Gomont, 1892) improved the flesh quality and shelf life of rainbow trout ( Oncorhynchus mykiss , Walbaum, 1792) fed fish meal or plant‐based diet

Update of the list of QPS‐recommended biological agents intentionally added to food or feed as notified to EFSA 10: Suitability of taxonomic units notified to EFSA until March 2019

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