Nutritional evaluation and human health-promoting potential of compounds biosynthesized by native microalgae from the Peruvian Amazon

Cobos, Marianela; Pérez, Sheyla; Braga, Janeth; Vargas-Arana, Gabriel; Ramos, Leenin Flores; Paredes, Jae D.; Maddox, J. Dylan; Marapara, Jorge L.; Gómez, Juan Carlos Castro

doi:10.1007/s11274-020-02896-1

Cited by 12 publications

(12 citation statements)

References 89 publications

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“…The EAAI value was equal to the bio oc of bacteria reported byJu et al (2008) and it was close to the value of soybean meal (0.87) for Penaeus monodon, informed by Peña orida(1989). In this study, the result was in the range reported for different microalgae (marine and freshwater), between 0.76-1.00(Kent et al 2015; Tibbetts et al 2015;Cobos et al 2020). Therefore, D. asymmetricus proteins can be classi ed as good quality and useful in the growth of different aquatic organisms.…”

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confidence: 59%

Protein Potential of Desmodesmus Asymmetricus Grown in Greenhouse as an Alternative Food Source for Aquaculture

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Ramos

et al. 2022

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During ten months, batch culture of Desmodesmus asymmetricus microalgae was carried out under greenhouse conditions. The inoculation ratio was 1:1 inoculum-treated water. The cultures were maintained for 5 days with 12 h:12 h light:dark photoperiod and constant aeration mixed with CO2. The biomass was concentrated by centrifugation and dried by lyophilization; subsequently, total proteins and amino acid concentration were determined. A relationship between biomass production and seasonal variation was observed, the lowest dry biomass productivity was recorded in June (38.8 ± 1.0 mg L-1 day-1) and July (43.3 ± 0.1 mg L-1 day-1); while the highest values were greater than 70 mg L-1 day-1. There was a high positive correlation between wet and dry biomass (r = 0.97, p < 0.001) with a mean conversion of 26%. The mean percentage of protein was 26.1 ± 2.6%, the highest percentage was registered in March (31.03 ± 1.48%) as well as the concentration of amino acids. Regarding amino acids, arginine obtained the highest concentration (4.08 ± 0.43 g 100 g-1), followed by aspartic acid (3.36 ± 0.23 g 100 g-1), while the lowest values were for methionine (0.55 ± 0.21 g 100 g-1), histidine (0.77 ± 0.07 g 100 g-1) and tyrosine (1.01 ± 0.17 g 100 g-1). Finally, according to the essential amino acid index (in fish ≥ 0.90, in crustaceans > 0.80), the biomass of D. asymmetricus has potential as a food supplement for the production of feed in aquaculture.

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confidence: 59%

Protein Potential of Desmodesmus Asymmetricus Grown in Greenhouse as an Alternative Food Source for Aquaculture

Huaynate

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Ramos

et al. 2022

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“…Proximate composition, TPC, FRAP, DPPH RSA, ICA, literature data used in tables, 3D figure of PCA. Reference [69] can be found only in Supplementary Figure S1. The gradient elution program is described in Section 2.8.3.…”

Section: Supplementary Materialsmentioning

confidence: 99%

Total Phenolic Content, Biomass Composition, and Antioxidant Activity of Selected Marine Microalgal Species with Potential as Aquaculture Feed

et al. 2022

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There has been growing interest in microalgal biomolecules for health and cosmetics, as well as in the use of microalgae as aquaculture feed due to the need to replace fishmeal and fish oil with sustainable yet equally nutritious alternatives. Aim of this study is to evaluate the potential of five marine microalgal species, namely Chlorella minutissima, Dunaliella salina, Isochrysis galbana, Nannochloropsis oculata and Tisochrysis lutea, for the co-production of antioxidants and aquaculture feed. Batch cultivation was performed under saturating light intensity and continuous aeration. Freeze-dried biomass was extracted sequentially with water and methanol and evaluated for phenolic content and antioxidant activity, as well as proximate composition and fatty acid profile. Methanolic extracts of C. minutissima presented the highest phenolic content, measured with the Folin–Ciocalteu assay, and antioxidant activity. However, HPLC and LC-MS showed the presence of non-pigment compounds only in T. lutea. Total phenolic content and antioxidant activity were correlated to chlorophyll content. N. oculata and T. lutea were rich in eicosapentaenoic acid and docosahexaenoic acid, respectively, as well as in protein. In conclusion, N. oculata and T. lutea are suitable candidates for further optimization, while the data presented suggest that pigment effects on the Folin–Ciocalteu method require reconsideration.

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“…For total phenolic content (TPC) analysis, first, a hydromethanolic extract was obtained from 100 mg of the cyanobacterial dry biomass using an approach previously described ( Cobos et al, 2020 ). Furthermore, the total phenolic content was estimated by the Folin–Ciocalteu method ( Velioglu et al, 1998 ) based on a standard curve from 10 to 100 μM of gallic acid (3,4,5-trihydroxy benzoic acid) (Sigma-Aldrich, Germany).…”

Section: Methodsmentioning

confidence: 99%

“…Due to their extraordinary biodiversity and metabolic diversity, cyanobacteria are potentially valuable for humans in several ways. For example, microalgae could be useful in aquaculture, producing foods, feeds, biofuels, fertilizers, nutraceuticals, secondary metabolites, pigments, and a myriad of bioactive biochemicals ( Singh et al, 2005 ; Udayan et al, 2017 ; Cobos et al, 2020 ). In addition, cyanobacteria are isolable and cultivable in laboratory conditions ( Ernst, 1991 ; Badr et al, 2018 ; Prihantini, 2020 ; Thilak et al, 2020 ; Jasser et al, 2022 ; Singh and Kumar, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Genomic analysis and biochemical profiling of an unaxenic strain of Synechococcus sp. isolated from the Peruvian Amazon Basin region

et al. 2022

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Cyanobacteria are diverse photosynthetic microorganisms able to produce a myriad of bioactive chemicals. To make possible the rational exploitation of these microorganisms, it is fundamental to know their metabolic capabilities and to have genomic resources. In this context, the main objective of this research was to determine the genome features and the biochemical profile of Synechococcus sp. UCP002. The cyanobacterium was isolated from the Peruvian Amazon Basin region and cultured in BG-11 medium. Growth parameters, genome features, and the biochemical profile of the cyanobacterium were determined using standardized methods. Synechococcus sp. UCP002 had a specific growth rate of 0.086 ± 0.008 μ and a doubling time of 8.08 ± 0.78 h. The complete genome of Synechococcus sp. UCP002 had a size of ∼3.53 Mb with a high coverage (∼200x), and its quality parameters were acceptable (completeness = 99.29%, complete and single-copy genes = 97.5%, and contamination = 0.35%). Additionally, the cyanobacterium had six plasmids ranging from 24 to 200 kbp. The annotated genome revealed ∼3,422 genes, ∼ 3,374 protein-coding genes (with ∼41.31% hypothetical protein-coding genes), two CRISPR Cas systems, and 61 non-coding RNAs. Both the genome and plasmids had the genes for prokaryotic defense systems. Additionally, the genome had genes coding the transcription factors of the metalloregulator ArsR/SmtB family, involved in sensing heavy metal pollution. The biochemical profile showed primary nutrients, essential amino acids, some essential fatty acids, pigments (e.g., all-trans-β-carotene, chlorophyll a, and phycocyanin), and phenolic compounds. In conclusion, Synechococcus sp. UCP002 shows biotechnological potential to produce human and animal nutrients and raw materials for biofuels and could be a new source of genes for synthetic biological applications.

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Nutritional evaluation and human health-promoting potential of compounds biosynthesized by native microalgae from the Peruvian Amazon

Cited by 12 publications

References 89 publications

Protein Potential of Desmodesmus Asymmetricus Grown in Greenhouse as an Alternative Food Source for Aquaculture

Protein Potential of Desmodesmus Asymmetricus Grown in Greenhouse as an Alternative Food Source for Aquaculture

Total Phenolic Content, Biomass Composition, and Antioxidant Activity of Selected Marine Microalgal Species with Potential as Aquaculture Feed

Genomic analysis and biochemical profiling of an unaxenic strain of Synechococcus sp. isolated from the Peruvian Amazon Basin region

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