Use of technological processing of seaweed and microalgae as strategy to improve their apparent digestibility coefficients in European seabass (Dicentrarchus labrax) juveniles

Batista, Sónia; Pintado, Manuela; Marques, Alexandra; Abreu, Helena; Silva, Joana; Jessen, Flemming; Tulli, Francesca; Valente, Luísa

doi:10.1007/s10811-020-02185-2

Cited by 58 publications

(49 citation statements)

References 47 publications

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“…According to previous studies, the addition of the microalgae blend in the diet, particularly Tetrasemis, probably depressed diet digestibility. Poor digestibility of intact cell Tetraselmis biomass has recently been observed in European sea bass [44]. Depressed dietary nutrient and gross energy apparent digestibility was also reported in previous studies with E. sea bass fed diets including a variable proportion of intact-cell dried biomass of T. suecica alone or blended with T. lutea [13,14].…”

Section: Discussionsupporting

confidence: 67%

Appetite Regulation, Growth Performances and Fish Quality Are Modulated by Alternative Dietary Protein Ingredients in Gilthead Sea Bream (Sparus aurata) Culture

Pulido-Rodríguez

Cardinaletti

Secci

et al. 2021

Animals

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By answering the need for increasing sustainability in aquaculture, the present study aimed to compare growth, gene expression involved in appetite regulation, physical characteristics, and chemical composition of Sparus aurata fed alternative protein sources. Fish were fed ten iso-proteic, iso-lipidic, and isoenergetic diets: a vegetable-based (CV) and a marine ingredient-rich (CF) diet were set as control diets. The others were prepared by replacing graded levels (10, 20 or 40%) of the vegetable proteins in the CV with proteins from a commercial defatted Hermetia illucens pupae meal (H), poultry by-product meal (PBM) singly (H10, H20, H40, P20, P40) or in combination (H10P30), red swamp crayfish meal (RC10) and from a blend (2:1, w:w) of Tisochrysis lutea and Tetraselmis suecica (MA10) dried biomasses. The increase in ghre gene expression observed in MA10 fed fish matched with increased feed intake and increased feed conversion ratio. Besides, the MA10 diet conferred a lighter aspect to the fish skin (p < 0.05) than the others. Overall, no detrimental effects of H, PBM, and RC meal included in the diets were observed, and fish fatty acid profile resulted as comparable among these groups and CV, thus demonstrating the possibility to introduce H, PBM, and RC in partial replacement of vegetable proteins in the diet for Sparus aurata.

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Section: Discussionsupporting

confidence: 67%

Appetite Regulation, Growth Performances and Fish Quality Are Modulated by Alternative Dietary Protein Ingredients in Gilthead Sea Bream (Sparus aurata) Culture

Pulido-Rodríguez

Cardinaletti

Secci

et al. 2021

Animals

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“…The effectiveness of exogenous enzymes (i.e. cellulases, xylanases [21][22][23][24] and a mixture of carbohydrases 25 ) on hydrolysing algae biomass with an increase of protein extraction or digestibility was previously demonstrated for green (i.e. Ulva rigida) 25 and red (e.g.…”

Section: Introductionmentioning

confidence: 96%

An Individual Alginate Lyase is Effective in the Disruption of Laminaria Digitata Recalcitrant Cell Wall

Costa

Pio

Bule

et al. 2021

Preprint

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In the present study, 199 pre-selected Carbohydrate-Active enZymes (CAZymes) and sulfatases were assessed, either alone or in combination, to evaluate their capacity to disrupt Laminaria digitata cell wall, with the consequent release of interesting nutritional compounds. An individual alginate lyase, belonging to the family 7 of polysaccharide lyases (PL7), was shown to be the most efficient in the in vitro degradation of L. digitata cell wall. The alginate lyase treatment, compared to the control, released up to 7.11 g/L of reducing sugars (p < 0.001) and 8.59 mmol/100 g dried alga of monosaccharides (p < 0.001), and reduced cell wall fluorescence intensity by 39.1% after staining with Calcofluor White (p = 0.001). The alginate lyase treatment also released beneficial monounsaturated fatty acids, particularly 18:1c9 (p < 0.001), and decreased the release of saturated fatty acids (p = 0.001). However, no liberation of proteins (p > 0.170) or pigments (p > 0.070) was observed. Overall, these results show the ability of an individual alginate lyase, from PL7 family, to partially degrade L. digitata cell wall under physiological conditions. Therefore, this CAZyme can potentially improve the bioavailability of L. digitata bioactive compounds for monogastric diets, with further application in feed industry.

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“…The effectiveness of exogenous enzymes ( i.e. cellulases, xylanases 19 – 22 and a mixture of carbohydrases 18 ) on hydrolysing algae biomass with an increase of protein extraction or digestibility was previously demonstrated for green (i.e. Ulva rigida ) 18 and red (e.g.…”

Section: Introductionmentioning

confidence: 98%

“…However, mechanical methods are less specific for macroalgae cell disruption than enzymatic procedures. Therefore, the latter can be more advantageous for the release of algae valuable nutritional and bioactive compounds and increase of their bioavailability 18 . The effectiveness of exogenous enzymes ( i.e.…”

Section: Introductionmentioning

confidence: 99%

An individual alginate lyase is effective in the disruption of Laminaria digitata recalcitrant cell wall

Costa

Pio

Bule

et al. 2021

Sci Rep

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In the present study, 199 pre-selected Carbohydrate-Active enZymes (CAZymes) and sulfatases were assessed, either alone or in combination, to evaluate their capacity to disrupt Laminaria digitata cell wall, with the consequent release of interesting nutritional compounds. A previously characterized individual alginate lyase, belonging to the family 7 of polysaccharide lyases (PL7) and produced by Saccharophagus degradans, was shown to be the most efficient in the in vitro degradation of L. digitata cell wall. The alginate lyase treatment, compared to the control, released up to 7.11 g/L of reducing sugars (p < 0.001) and 8.59 mmol/100 g dried alga of monosaccharides (p < 0.001), and reduced cell wall fluorescence intensity by 39.1% after staining with Calcofluor White (p = 0.001). The hydrolysis of gel-forming polymer alginate by the alginate lyase treatment could prevent the trapping of fatty acids and release beneficial monounsaturated fatty acids, particularly 18:1c9 (p < 0.001), to the extracellular medium. However, no liberation of proteins (p > 0.170) or pigments (p > 0.070) was observed. Overall, these results show the ability of an individual alginate lyase, from PL7 family, to partially degrade L. digitata cell wall under physiological conditions. Therefore, this CAZyme can potentially improve the bioavailability of L. digitata bioactive compounds for monogastric diets, with further application in feed industry.

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Use of technological processing of seaweed and microalgae as strategy to improve their apparent digestibility coefficients in European seabass (Dicentrarchus labrax) juveniles

Abstract: Use of technological processing of seaweed and microalgae as strategy to improve their apparent digestibility coefficients in European seabass (Dicentrarchus labrax) juveniles

Cited by 58 publications

References 47 publications

Appetite Regulation, Growth Performances and Fish Quality Are Modulated by Alternative Dietary Protein Ingredients in Gilthead Sea Bream (Sparus aurata) Culture

Appetite Regulation, Growth Performances and Fish Quality Are Modulated by Alternative Dietary Protein Ingredients in Gilthead Sea Bream (Sparus aurata) Culture

An Individual Alginate Lyase is Effective in the Disruption of Laminaria Digitata Recalcitrant Cell Wall

An individual alginate lyase is effective in the disruption of Laminaria digitata recalcitrant cell wall

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