Scenedesmus obliquus protein concentrate: A sustainable alternative emulsifier for the food industry

Silva, Monique Ellen Torres da; Leal, Mithyzi Andrade; Resende, Michael de Oliveira; Martins, Márcio Arêdes; Coimbra, Jane Sélia dos Reis

doi:10.1016/j.algal.2021.102468

Cited by 18 publications

(20 citation statements)

References 41 publications

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“…Polyunsaturated fatty acids can improve skin barrier protection [ 106 , 107 ] and regulate inflammatory responses [ 108 ]. Lipids in cosmetic formulations can act as moisturizing agents (forming a waterproof film on the skin to avoid water evaporation from the surface) [ 109 ], emollient [ 110 ], and softening agents (they make the corneocyte’s edges smoother) [ 36 ], surfactants [ 111 ], and emulsifiers (they decrease the surface tension) [ 112 ], texturizers (they improve the spreadability of gel-like products), and as color and fragrance carriers [ 113 ].…”

Section: Algae Metabolitesmentioning

confidence: 99%

The Potential of Algae in the Nutricosmetic Sector

Dini

2023

Molecules

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Seaweeds or algae are marine autotrophic organisms. They produce nutrients (e.g., proteins, carbohydrates, etc.) essential for the survival of living organisms as they participate in biochemical processes and non-nutritive molecules (such as dietary fibers and secondary metabolites), which can improve their physiological functions. Seaweed polysaccharides, fatty acids, peptides, terpenoids, pigments, and polyphenols have biological properties that can be used to develop food supplements and nutricosmetic products as they can act as antibacterial, antiviral, antioxidant, and anti-inflammatory compounds. This review examines the (primary and secondary) metabolites produced by algae, the most recent evidence of their effect on human health conditions, with particular attention to what concerns the skin and hair’s well-being. It also evaluates the industrial potential of recovering these metabolites from biomass produced by algae used to clean wastewater. The results demonstrate that algae can be considered a natural source of bioactive molecules for well-being formulations. The primary and secondary metabolites’ upcycling can be an exciting opportunity to safeguard the planet (promoting a circular economy) and, at the same time, obtain low-cost bioactive molecules for the food, cosmetic, and pharmaceutical industries from low-cost, raw, and renewable materials. Today’s lack of methodologies for recovering bioactive molecules in large-scale processes limits practical realization.

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Section: Algae Metabolitesmentioning

confidence: 99%

The Potential of Algae in the Nutricosmetic Sector

Dini

2023

Molecules

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“…(i) are native Brazilian species abundant in aquatic environments; (ii) exhibit sizeable morphological variation within each species; (iii) exhibit a high growth rate; and (iv) contain 30% to 40% protein on a dry-mass basis [13,17]. The literature has also described the great potential of T. obliquus biomass for applications in the food, pharmaceutical, cosmetic, and biofuel industries [13,[17][18][19][20][21][22]. Silva et al [2] reported no toxic effects from the ingestion of T. obliquus biomass by Wistar rats.…”

Section: Introductionmentioning

confidence: 99%

“…Lima et al [20] reported that lower concentrations (0.5% and 1.0% w/w) of T. obliquus protein concentrate (51.46% w/w) stabilized emulsions after 28 days of storage. Silva et al [21] observed that T. obliquus protein concentrate (63.14% w/w) could form stable emulsions that were resistant to pH shifts and tolerated high salt concentrations.…”

Section: Introductionmentioning

confidence: 99%

“…The mill balls (0.635 cm in external diameter) and the biomass swung up and down vertically in batches for 25 min, approximately 10 times per second and 617 strokes per minute. The disrupted biomass was kept at 20 • C until use; • Mechanical disruption by ultrasound: Freeze-dried biomass was mechanically disrupted by ultrasound after resuspension in distilled water (10.0% w/v) following the optimal conditions determined by Silva et al [21]. The suspensions were mechanically stirred (IKA, RW20 digital, Staufen, Germany) at 25.0 • C overnight and disrupted in a tip sonicator (Sonics, VCX 500, Newtown, CT, USA) at a frequency of 20 kHz and 98% amplitude for 6 min of ultrasonication.…”

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confidence: 99%

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Evaluation of Cell Rupture Techniques for the Extraction of Proteins from the Microalgae Tetradesmus obliquus

da Silva,

Sibaja,

de Ramos Cizilio

et al. 2024

Phycology

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The high protein content of several microalgal species makes them attractive and unconventional candidates for use in the food and pharmaceutical industries. Due to the robust cell walls of microalgae, cell rupture is necessary to improve the extraction of intracellular proteins. Thus, choosing a suitable cell-breaking treatment before protein extraction is a vital downstream processing step. Additionally, it is necessary to use an effective technique for monitoring and measuring the impact of rupture treatments on microalgal cell walls. In our study, Tetradesmus obliquus cells were disrupted using three different mechanical rupture methods: high-pressure homogenization (HPH), ultrasound (US), and ball milling (BM). The ruptured biomass cells were counted, and soluble proteins were extracted and quantified. The cell-counting technique did not detect any differences between intact and damaged cells after BM treatment because the dye (erythrosine B) did not permeate the microalgal biomass accurately. The US treatment promoted the highest yield of total protein extraction (19.95%), while the highest yields in the HPH and BM treatments were 15.68% and 14.11%, respectively. Since the cell breakage method affects protein extraction from microalgal biomass, protein release can be used as a central indicator of the degree of cell disruption.

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“…(Rhodophyta) [57][58][59], Scenedesmus sp. (Chlorophyta) [60][61][62][63], Spirulina (Arthorspira) sp. (Cyanobacteria) [62][63][64][65][66][67][68][69][70], Tisochrysis lutea (Haptophyta, Coccolithophyceae) [71][72][73][74][75], and Tetraselmis sp.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Metabolite Production in High-Altitude Microalgal Strains by Optimized C/N/P Ratio

et al. 2022

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This study evaluated the role of C/N/P in the increase in the synthesis of carbohydrates, proteins, and lipids in two high-mountain strains of algae (Chlorella sp. UFPS019 and Desmodesmus sp. UFPS021). Three carbon sources (sodium acetate, sodium carbonate, and sodium bicarbonate), and the sources of nitrogen (NaNO3) and phosphate (KH2PO4 and K2HPO4) were analyzed using a surface response (3 factors, 2 levels). In Chlorella sp. UFPS019, the optimal conditions to enhance the synthesis of carbohydrates were high sodium carbonate content (3.53 g/L), high KH2PO4 and K2HPO4 content (0.06 and 0.14 g/L, respectively), and medium-high NaNO3 (0.1875 g/L). In the case of lipids, a high concentration of sodium acetate (1.19 g/L) coupled with high KH2PO4 and K2HPO4 content (0.056 and 0.131 g/L, respectively) and a low concentration of NaNO3 (0.075 g/L) drastically induced the synthesis of lipids. In the case of Desmodesmus sp. UFPS021, the protein content was increased using high sodium acetate (2 g/L), high KH2PO4 and K2HPO4 content (0.056 and 0.131 g/L, respectively), and high NaNO3 concentration (0.25 g/L). These results demonstrate that the correct adjustment of the C/N/P ratio can enhance the capacity of high-mountain strains of algae to produce high concentrations of carbohydrates, proteins, and lipids.

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Scenedesmus obliquus protein concentrate: A sustainable alternative emulsifier for the food industry

Cited by 18 publications

References 41 publications

The Potential of Algae in the Nutricosmetic Sector

The Potential of Algae in the Nutricosmetic Sector

Evaluation of Cell Rupture Techniques for the Extraction of Proteins from the Microalgae Tetradesmus obliquus

Enhancement of Metabolite Production in High-Altitude Microalgal Strains by Optimized C/N/P Ratio

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