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Acateca-Hernández MI, Hernández-Cázares AS, Hidalgo-Contreras JV, Jiménez-Munguía MT, Ríos-Corripio MA. Evaluation of the functional properties of a protein isolate from Arthrospira maxima and its application in a meat sausage. Heliyon 2024; 10:e33500. [PMID: 39027591 PMCID: PMC11255854 DOI: 10.1016/j.heliyon.2024.e33500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 06/09/2024] [Accepted: 06/21/2024] [Indexed: 07/20/2024] Open
Abstract
Arthrospira maxima is a microalga that has been collected in Lake Texcoco in the Valley of Mexico since pre-Hispanic times and has been a traditional food source due to its high biomass production and protein content (50-60 %), making it promising for protein extraction. In this context, a protein isolate was obtained from powdered biomass of Arthrospira maxima (PbAm) by alkaline solubilization (pH 11) and isoelectric precipitation (pH 4.2). Arthrospira maxima protein isolate (AmPI) presented higher protein content (82.58 %) and total amino acids compared to PbAm. Functional properties of AmPI were evaluated in comparison with PbAm and soy protein isolate (SPI). Protein extraction resulted in a significant increase in protein solubility (PS) and foaming capacity (FC) of up to 87.78 % and 238.10 %, respectively. Emulsifying capacity (EC) of AmPI was superior to that of PbAm and SPI in pH range 5-7. Inclusion of AmPI as a partial substitute for SPI in the formulation of meat sausages was evaluated by implementing four treatments: T1 (15 % AmPI, 85 % SPI), T2 (10 % AmPI, 90 % SPI), T3 (5 % AmPI, 95 % SPI) and T4 (0 % AmPI, 100 % SPI). Although the texture attributes remained unchanged, a significant reduction in color parameters was observed as the concentration of AmPI increased. An inclusion of 15 % AmPI significantly enhanced the nutritional quality of meat sausages. Results highlight the excellent properties of AmPI, confirming Arthrospira maxima as a promising protein source in the food industry.
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Affiliation(s)
- Mariana Inés Acateca-Hernández
- Colegio de Postgraduados, Campus Córdoba, Carretera Federal Córdoba-Veracruz km 348, Congregación Manuel León, Amatlán de los Reyes, Veracruz, 94946, Mexico
| | - Aleida S. Hernández-Cázares
- Colegio de Postgraduados, Campus Córdoba, Carretera Federal Córdoba-Veracruz km 348, Congregación Manuel León, Amatlán de los Reyes, Veracruz, 94946, Mexico
| | - Juan Valente Hidalgo-Contreras
- Colegio de Postgraduados, Campus Córdoba, Carretera Federal Córdoba-Veracruz km 348, Congregación Manuel León, Amatlán de los Reyes, Veracruz, 94946, Mexico
| | - María Teresa Jiménez-Munguía
- Departamento de Ingeniería Química y Alimentos, Universidad de las Américas Puebla, San Andrés Cholula, Puebla, 72810, Mexico
| | - Ma. Antonieta Ríos-Corripio
- CONAHCYT-Colegio de Postgraduados, Campus Córdoba, Carretera Federal Córdoba-Veracruz km 348, Congregación Manuel León, Amatlán de los Reyes, Veracruz, 94946, Mexico
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Mosibo OK, Ferrentino G, Udenigwe CC. Microalgae Proteins as Sustainable Ingredients in Novel Foods: Recent Developments and Challenges. Foods 2024; 13:733. [PMID: 38472846 DOI: 10.3390/foods13050733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/04/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
Microalgae are receiving increased attention in the food sector as a sustainable ingredient due to their high protein content and nutritional value. They contain up to 70% proteins with the presence of all 20 essential amino acids, thus fulfilling human dietary requirements. Microalgae are considered sustainable and environmentally friendly compared to traditional protein sources as they require less land and a reduced amount of water for cultivation. Although microalgae's potential in nutritional quality and functional properties is well documented, no reviews have considered an in-depth analysis of the pros and cons of their addition to foods. The present work discusses recent findings on microalgae with respect to their protein content and nutritional quality, placing a special focus on formulated food products containing microalgae proteins. Several challenges are encountered in the production, processing, and commercialization of foods containing microalgae proteins. Solutions presented in recent studies highlight the future research and directions necessary to provide solutions for consumer acceptability of microalgae proteins and derived products.
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Affiliation(s)
- Ornella Kongi Mosibo
- School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1N 9A7, Canada
| | - Giovanna Ferrentino
- Faculty of Agriculture, Environmental and Food Sciences, Free University of Bozen-Bolzano, Piazza Università 5, 39100 Bolzano, Italy
| | - Chibuike C Udenigwe
- School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1N 9A7, Canada
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3
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Villanova V, Roques JAC, Forghani B, Shaikh KM, Undeland I, Spetea C. Two-phase microalgae cultivation for RAS water remediation and high-value biomass production. FRONTIERS IN PLANT SCIENCE 2023; 14:1186537. [PMID: 37377803 PMCID: PMC10292630 DOI: 10.3389/fpls.2023.1186537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/17/2023] [Indexed: 06/29/2023]
Abstract
The overall goal of this study was to provide solutions to innovative microalgae-based technology for wastewater remediation in a cold-water recirculating marine aquaculture system (RAS). This is based on the novel concept of integrated aquaculture systems in which fish nutrient-rich rearing water will be used for microalgae cultivation. The produced biomass can be used as fish feed, while the cleaned water can be reused, to create a highly eco-sustainable circular economy. Here, we tested three microalgae species Nannochloropis granulata (Ng), Phaeodactylum tricornutum (Pt), and Chlorella sp (Csp) for their ability to remove nitrogen and phosphate from the RAS wastewater and simultaneously produce high-value biomass, i.e., containing amino acids (AA), carotenoids, and polyunsaturated fatty acids (PUFAs). A high yield and value of biomass were achieved for all species in a two-phase cultivation strategy: i) a first phase using a medium optimized for best growth (f/2 14x, control); ii) a second "stress" phase using the RAS wastewater to enhance the production of high-value metabolites. Ng and Pt performed best in terms of biomass yield (i.e., 5-6 g of dry weight, DW.L-1) and efficient cleaning of the RAS wastewater from nitrite, nitrate, and phosphate (i.e., 100% removal). Csp produced about 3 g L-1 of DW and reduced efficiently only nitrate, and phosphate (i.e., about 76% and 100% removal, respectively). The biomass of all strains was rich in protein (30-40 % of DW) containing all the essential AA except Methionine. The biomass of all three species was also rich in PUFAs. Finally, all tested species are excellent sources of antioxidant carotenoids, including fucoxanthin (Pt), lutein (Ng and Csp) and β-carotene (Csp). All tested species in our novel two-phase cultivation strategy thus showed great potential to treat marine RAS wastewater and provide sustainable alternatives to animal and plant proteins with extra added values.
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Affiliation(s)
- Valeria Villanova
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | - Jonathan Armand Charles Roques
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- SWEMARC, The Swedish Mariculture Research Center, University of Gothenburg, Gothenburg, Sweden
| | - Bita Forghani
- Department of Life Sciences-Food and Nutrition Science, Chalmers University of Technology, Gothenburg, Sweden
| | - Kashif Mohd Shaikh
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Ingrid Undeland
- Department of Life Sciences-Food and Nutrition Science, Chalmers University of Technology, Gothenburg, Sweden
| | - Cornelia Spetea
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
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Zahran E, Elbahnaswy S, Ahmed F, Ibrahim I, Khaled AA, Eldessouki EA. Nutritional and immunological evaluation of Nannochloropsis oculata as a potential Nile tilapia-aquafeed supplement. BMC Vet Res 2023; 19:65. [PMID: 37076908 PMCID: PMC10114411 DOI: 10.1186/s12917-023-03618-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 04/03/2023] [Indexed: 04/21/2023] Open
Abstract
Nannochloropsis oculata (N. oculata) is a marine microalga containing bioactive compounds and a high omega-3 polyunsaturated fatty acid (ω-3 PUFAs). Therefore, it is very promising for nutraceutical and the functional food industry applications. Three groups of Nile tilapia (forty-five fish/group) were fed on basal diets or diets containing 5% (N5) or 10% (N10) of the microalga N. oculata for seven weeks. Fish growth performance, proximate composition, and lipid (fatty acids/ FAs and lipoproteins) profile were estimated. In addition, the expression pattern of some lipid metabolism and immune-relevant genes were assessed. An enhancement in whole body crude protein and growth indices of Nile tilapia was observed on both the supplemented groups N5 and N10. Higher levels of high-density lipoproteins (HDL); and lower levels of the low-density lipoproteins (LDL) were evident in both supplemented groups, while the cholesterol and triglycerides (TG) levels were similar among groups. Ω-3 PUFAs were the significant FAs profile of tilapia fed on N. oculata-supplemented diets in terms of eicosapentaenoic acid, docosahexaenoic acid, and n3/n6 ratio. Concerning the gene expression pattern, heat-shock protein70, glutathione-S-transferase, glutathione peroxidase, and interleukin-1β (IL-1β) were elevated significantly in both supplemented groups. IL-10 is only upregulated in the N10 group. The lipid metabolism-related gene expression showed downregulation of only fatty acid synthase (FAS) in both supplemented groups, with no statistical changes in Peroxisome proliferator-activated receptor alpha (PPARα). Tumor necrosis factor-α (TNF-α), Transforming growth factor-β1 (TGF-β1), and the apoptotic related genes [caspase3 and Proliferating cell nuclear antigen (PCNA)] showed insignificant changes among groups. The histopathological examination of the intestine, liver, and spleen supports our findings and confirms the benefits and safeness of N. oculata dietary inclusion. Collectively, N. oculata is a very promising nutraceutical for improving fish health and sustainability of aquaculture production.
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Affiliation(s)
- Eman Zahran
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516 Egypt
| | - Samia Elbahnaswy
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516 Egypt
| | - Fatma Ahmed
- Department of Zoology, Faculty of Science, Sohag University, Sohag, 82524 Egypt
| | - Iman Ibrahim
- Pathology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516 Egypt
| | - Asmaa A. Khaled
- Animal and Fish Production Department, Faculty of Agriculture Saba Basha, Alexandria University, Alexandria, Egypt
| | - Elsayed A. Eldessouki
- Department of Fish Health and Diseases, Faculty of Fish Resources, Suez University, Suez, Egypt
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Van De Walle S, Broucke K, Baune MC, Terjung N, Van Royen G, Boukid F. Microalgae protein digestibility: How to crack open the black box? Crit Rev Food Sci Nutr 2023; 64:7149-7171. [PMID: 38975868 DOI: 10.1080/10408398.2023.2181754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Microalgae are booming as a sustainable protein source for human nutrition and animal feed. Nevertheless, certain strains were reported to have robust cell walls limiting protein digestibility. There are several disruption approaches to break down the cell integrity and increase digestive enzyme accessibility. This review's intent is to discuss the digestibility of microalgae proteins in intact cells and after their disruption. In intact single cells, the extent of protein digestibility is chiefly related to cell wall structural properties (differing among strains) as well as digestion method and when added to food or feed protein digestibility changes depending on the matrix's composition. The degree of effectiveness of the disruption method varies among studies, and it is complicated to compare them due to variabilities in digestibility models, strains, disruption method/conditions and their consequent impact on the microalgae cell structure. More exhaustive studies are still required to fill knowledge gaps on the structure of microalgal cell walls and to find efficient and cost-effective disruption technologies to increase proteins availability without hindering their quality.
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Affiliation(s)
- Simon Van De Walle
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
| | - Keshia Broucke
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
| | | | - Nino Terjung
- German Institute of Food Technologies (DIL e.V.), Quakenbrück, Germany
| | - Geert Van Royen
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
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Lima VS, de Oliveira DRB, da Silva CAS, Santana RDC, Soares NDFF, de Oliveira EB, Martins MA, Coimbra JSDR. Stabilization of oil-water emulsions with protein concentrates from the microalga Tetradesmus obliquus. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2023; 60:797-808. [PMID: 36712212 PMCID: PMC9873893 DOI: 10.1007/s13197-023-05666-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/07/2022] [Accepted: 01/02/2023] [Indexed: 01/15/2023]
Abstract
The present work used water-soluble protein concentrates from the microalga Tetradesmus obliquus to stabilize sunflower oil emulsions. Microalgal cells were disrupted by sonication, and proteins were separated from the biomass using two methods, isoelectric and solvent precipitations. The protein extracts were concentrated by lyophilization, and the concentrates were used to produce emulsions with three amounts of Tetradesmus obliquus protein concentrate (TobPC) (0.1, 0.5, and 1.0% w/v). Emulsions were homogenized through sonication and characterized for creaming index, optical microscopy, size distribution, ζ-potential, and rheology. Isoelectric precipitation resulted in TobPC with a high protein content (51.46 ± 2.37%) and a better dispersibility profile. Emulsion stability was higher for both the isoelectric TobPC and control systems than for the TobPC solvent. Solvent TobPC does not efficiently stabilize emulsions at low protein concentrations that showed microscopically larger oil droplets and flocculation spots. A high phase separation velocity was observed for solvent TobPC, probably due to the higher hydrodynamic droplet diameters. The increase in TobPC content in the emulsions resulted in more stable emulsions for all samples. Therefore, Tetradesmus obliquus protein concentrates are a potential emulsifying agent.
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Affiliation(s)
- Viviane Sobreira Lima
- Departamento de Tecnologia de Alimentos (DTA), Universidade Federal de Viçosa (UFV), Campus Universitário S/N, Viçosa, MG CEP 36570-900 Brazil
| | - Davi Rocha Bernardes de Oliveira
- Departamento de Tecnologia de Alimentos (DTA), Universidade Federal de Viçosa (UFV), Campus Universitário S/N, Viçosa, MG CEP 36570-900 Brazil
| | - César Augusto Sodré da Silva
- Departamento de Tecnologia de Alimentos (DTA), Universidade Federal de Viçosa (UFV), Campus Universitário S/N, Viçosa, MG CEP 36570-900 Brazil
| | - Rejane de Castro Santana
- Departamento de Química (DEQ), Universidade Federal de Viçosa (UFV), Campus Universitário S/N, Viçosa, MG CEP 36570-900 Brazil
| | - Nilda de Fátima Ferreira Soares
- Departamento de Tecnologia de Alimentos (DTA), Universidade Federal de Viçosa (UFV), Campus Universitário S/N, Viçosa, MG CEP 36570-900 Brazil
| | - Eduardo Basílio de Oliveira
- Departamento de Tecnologia de Alimentos (DTA), Universidade Federal de Viçosa (UFV), Campus Universitário S/N, Viçosa, MG CEP 36570-900 Brazil
| | - Marcio Aredes Martins
- Departamento de Engenharia Agrícola (DEA), Universidade Federal de Viçosa (UFV), Campus Universitário S/N, Viçosa, MG CEP 36570-900 Brazil
| | - Jane Sélia dos Reis Coimbra
- Departamento de Tecnologia de Alimentos (DTA), Universidade Federal de Viçosa (UFV), Campus Universitário S/N, Viçosa, MG CEP 36570-900 Brazil
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Kamaruding NA, Muhammad Daud NA, Ismail N, Shaharuddin S. Effect of Different Solubilization pH Values on the Functional Properties of Protein Spirulina platensis Isolated Through Acidic Precipitation. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2022. [DOI: 10.1080/10498850.2022.2131495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- N. A. Kamaruding
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia
| | - N. A. Muhammad Daud
- Section of Food Engineering Technology, Universiti Kuala Lumpur Branch Campus Malaysian Institute of Chemical and Bioengineering Technology, Melaka, Malaysia
| | | | - S. Shaharuddin
- Universiti Kuala Lumpur Branch Campus Malaysian Institute of Industrial Technology, Persiaran Sinaran Ilmu, Johor Bahru, Malaysia
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Obeid S, Beaufils N, Peydecastaing J, Camy S, Takache H, Ismail A, Pontalier PY. Microalgal fractionation for lipids, pigments and protein recovery. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Chen Q, Li S, Xiong H, Zhao Q. Effect of Different Extraction Methods on Physicochemical Characteristics and Antioxidant Activity of C-Phycocyanin from Dry Biomass of Arthrospira platensis. Foods 2022; 11:foods11091296. [PMID: 35564018 PMCID: PMC9102789 DOI: 10.3390/foods11091296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 11/16/2022] Open
Abstract
The effect of four different extraction methods on physicochemical characteristics and functionalities of chloro-phycocyanin (CP) was investigated. Swelling (S-CP), freezing and thawing (4FT-CP), ultrasonication with freezing and thawing (4FT+U-CP), and the high-pressure cell disruption (HPCD-CP) process affected CP differently, thus resulting in different levels of solubility, DPPH scavenging activity, ABTS scavenging activity, and reducing power. Among the four CPs, HPCD-CP had the highest CP content (15.3%), purity (1.66 ± 0.16), and ∆E value but the lowest ∆b value. The ζ potential of HPCD-CP (−38.8 mV) was the highest, but the average particle size of 4FT+U-CP (719.1 nm) was the highest. UV-Vis absorption spectra and fluorescence spectra illustrated that high-pressure cell disruption-assisted extraction had more profound impacts on the microenvironment of tetrapyrrole chromophores, the environment of aromatic amino acids, and the phycocyanobilin of CP. Furthermore, HPCD-CP and 4FT-CP showed higher solubility and antioxidant activities than S-CP, especially 4FT+U-CP. The results obtained in this study demonstrate that HPCD technology could obtain a food-grade C-phycocyanin product with higher CP concentration, purity, solubility, and antioxidant activity.
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Affiliation(s)
- Qian Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Q.C.); (H.X.)
| | - Shuhui Li
- Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China;
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Q.C.); (H.X.)
| | - Qiang Zhao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Q.C.); (H.X.)
- Correspondence: or ; Tel./Fax: +86-791-86634810
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Ribeiro C, Santos ET, Costa L, Brazinha C, Saraiva P, Crespo JG. Nannochloropsis sp. Biorefinery: Recovery of Soluble Protein by Membrane Ultrafiltration/Diafiltration. MEMBRANES 2022; 12:membranes12040401. [PMID: 35448371 PMCID: PMC9032216 DOI: 10.3390/membranes12040401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 11/16/2022]
Abstract
This work proposes a way to maximize the potential of a Nannochloropsis sp. biorefinery process, through membrane technology, producing an extract enriched in soluble proteins, free from the insoluble protein fraction, with a low lipid content and eliminating the colored chlorophyll-a. This procedure, following the principles of a circular economy approach, allows for the valorization of a stream from the biorefining of Nannochloropsis sp. that, otherwise, would be considered a residue without commercial value. The process proposed minimizes fouling phenomena at the membrane surface, making it possible to achieve high permeate fluxes, thus reducing the need for membrane cleaning and, therefore, contributing to an extended membrane lifetime. Supernatant obtained after centrifugation of a suspension of ruptured Nannochloropsis sp. cells was processed by ultrafiltration using a membrane with a cut-off of 100 kDa MWCO. Two different operating approaches were evaluated—controlled transmembrane pressure and controlled permeate flux—under concentration and diafiltration modes. Ultrafiltration operated in a diafiltration mode, under controlled permeate flux conditions, led to the highest soluble protein recovery (78%) with the highest constant permeate flux (12 L·m−2·h−1) and low membrane fouling.
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Affiliation(s)
- Cláudia Ribeiro
- LAQV/Requimte, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (C.R.); (J.G.C.)
- A4F—Algae for Future, Campus do Lumiar, Estrada do Paço do Lumiar, Edif. E, R/C, 1649-038 Lisboa, Portugal;
| | - Edgar T. Santos
- A4F—Algae for Future, Campus do Lumiar, Estrada do Paço do Lumiar, Edif. E, R/C, 1649-038 Lisboa, Portugal;
- Correspondence: (E.T.S.); (C.B.); Tel.: +351-21-807-24-99 (E.T.S.); +351-21-294-83-85 (C.B.)
| | - Luís Costa
- A4F—Algae for Future, Campus do Lumiar, Estrada do Paço do Lumiar, Edif. E, R/C, 1649-038 Lisboa, Portugal;
| | - Carla Brazinha
- LAQV/Requimte, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (C.R.); (J.G.C.)
- Correspondence: (E.T.S.); (C.B.); Tel.: +351-21-807-24-99 (E.T.S.); +351-21-294-83-85 (C.B.)
| | - Pedro Saraiva
- CIEPQPF, Chemical Engineering Department, FCT, University of Coimbra, 3030-790 Coimbra, Portugal;
- Dean of NOVA IMS, NOVA University of Lisbon, 1070-312 Lisboa, Portugal
| | - João G. Crespo
- LAQV/Requimte, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (C.R.); (J.G.C.)
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11
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Recovery of soluble proteins from Chlorella vulgaris by bead-milling and microfiltration: Impact of the concentration and the physicochemical conditions during the cell disruption on the whole process. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.05.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Hayes M. Bioactive Peptides in Preventative Healthcare: An Overview of Bioactivities and Suggested Methods to Assess Potential Applications. Curr Pharm Des 2021; 27:1332-1341. [PMID: 33550961 DOI: 10.2174/1381612827666210125155048] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/16/2020] [Indexed: 11/22/2022]
Abstract
Food derived bioactive peptides can be generated from various protein sources and usually consist of between 2-30 amino acids with bulky, side-chain aromatic amino acids preferred in the ultimate and penultimate positions at the C-terminal end of the amino acid chain. They are reported to impart a myriad of preventative health beneficial effects to the consumer once ingested and these include heart health benefits through inhibition of enzymes including renin (EC 3.4.23.15) and angiotensin- I-converting enzyme (ACE-1; EC 3.4.15.1) within the renin angiotensin aldosterone system (RAAS) anti-inflammatory (due to inhibition of ACE-I and other enzymes) and anti-cancer benefits, prevention of type-2 diabetes through inhibition of dipeptidyl peptidase IV (DPP-IV), bone and dental strength, antimicrobial and immunomodulatory effects and several others. Peptides have also reported health benefits in the treatment of asthma, neuropathic pain, HIV and wound healing. However, the structure, amino acid composition and length of these peptides, along with the quantity of peptide that can pass through the gastrointestinal tract and often the blood-brain barrier (BBB), intact and reach the target organ, are important for the realisation of these health effects in an in vivo setting. This paper aims to collate recent important research concerning the generation and detection of peptides in the laboratory. It discusses products currently available as preventative healthcare peptide options and relevant legislation barriers to place a food peptide product on the market. The review also highlights useful in silico computer- based methods and analysis that may be used to generate specific peptide sequences from proteins whose amino acid sequences are known and also to determine if the peptides generated are unique and bioactive. The topic of food-derived bioactive peptides for health is of great interest to scientific research and industry due to evolving drivers in food product innovation, including health and wellness for the elderly, infant nutrition and optimum nutrition for sports athletes and the humanisation of pets. This paper provides an overview of what is required to generate bioactive peptide containing hydrolysates, what methods should be used in order to characterise the beneficial health effects of these hydrolysates and the active peptide sequences, potential applications of bioactive peptides and legislative requirements in Europe and the United States. It also highlights success stories and barriers to the development of peptide-containing food products that currently exist.
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Affiliation(s)
- Maria Hayes
- Food BioSciences Department, Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland
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Jaeger A, Zannini E, Sahin AW, Arendt EK. Barley Protein Properties, Extraction and Applications, with a Focus on Brewers' Spent Grain Protein. Foods 2021; 10:foods10061389. [PMID: 34208463 PMCID: PMC8234785 DOI: 10.3390/foods10061389] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 11/24/2022] Open
Abstract
Barley is the most commonly used grain in the brewing industry for the production of beer-type beverages. This review will explore the extraction and application of proteins from barley, particularly those from brewers’ spent grain, as well as describing the variety of proteins present. As brewers’ spent grain is the most voluminous by-product of the brewing industry, the valorisation and utilisation of spent grain protein is of great interest in terms of sustainability, although at present, BSG is mainly sold cheaply for use in animal feed formulations. There is an ongoing global effort to minimise processing waste and increase up-cycling of processing side-streams. However, sustainability in the brewing industry is complex, with an innate need for a large volume of resources such as water and energy. In addition to this, large volumes of a by-product are produced at nearly every step of the process. The extraction and characterisation of proteins from BSG is of great interest due to the high protein quality and the potential for a wide variety of applications, including foods for human consumption such as bread, biscuits and snack-type products.
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Affiliation(s)
- Alice Jaeger
- School of Food and Nutritional Science, University College Cork, T12 K8AF Cork, Ireland; (A.J.); (E.Z.); (A.W.S.)
| | - Emanuele Zannini
- School of Food and Nutritional Science, University College Cork, T12 K8AF Cork, Ireland; (A.J.); (E.Z.); (A.W.S.)
| | - Aylin W. Sahin
- School of Food and Nutritional Science, University College Cork, T12 K8AF Cork, Ireland; (A.J.); (E.Z.); (A.W.S.)
| | - Elke K. Arendt
- School of Food and Nutritional Science, University College Cork, T12 K8AF Cork, Ireland; (A.J.); (E.Z.); (A.W.S.)
- APC Microbiome Institute, University College Cork, T12 K8AF Cork, Ireland
- Correspondence: ; Tel.: +353-021-490-2064
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14
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Nguyen TT, Heimann K, Zhang W. Protein Recovery from Underutilised Marine Bioresources for Product Development with Nutraceutical and Pharmaceutical Bioactivities. Mar Drugs 2020; 18:E391. [PMID: 32727001 PMCID: PMC7460389 DOI: 10.3390/md18080391] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 01/07/2023] Open
Abstract
The global demand for dietary proteins and protein-derived products are projected to dramatically increase which cannot be met using traditional protein sources. Seafood processing by-products (SPBs) and microalgae are promising resources that can fill the demand gap for proteins and protein derivatives. Globally, 32 million tonnes of SPBs are estimated to be produced annually which represents an inexpensive resource for protein recovery while technical advantages in microalgal biomass production would yield secure protein supplies with minimal competition for arable land and freshwater resources. Moreover, these biomaterials are a rich source of proteins with high nutritional quality while protein hydrolysates and biopeptides derived from these marine proteins possess several useful bioactivities for commercial applications in multiple industries. Efficient utilisation of these marine biomaterials for protein recovery would not only supplement global demand and save natural bioresources but would also successfully address the financial and environmental burdens of biowaste, paving the way for greener production and a circular economy. This comprehensive review analyses the potential of using SPBs and microalgae for protein recovery and production critically assessing the feasibility of current and emerging technologies used for the process development. Nutritional quality, functionalities, and bioactivities of the extracted proteins and derived products together with their potential applications for commercial product development are also systematically summarised and discussed.
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Affiliation(s)
| | - Kirsten Heimann
- Centre for Marine Bioproducts Development, College of Medicine and Public Health, Flinders University, Health Science Building, Sturt Road, Bedford Park, Adelaide, SA 5042, Australia;
| | - Wei Zhang
- Centre for Marine Bioproducts Development, College of Medicine and Public Health, Flinders University, Health Science Building, Sturt Road, Bedford Park, Adelaide, SA 5042, Australia;
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15
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Phusunti N, Cheirsilp B. Integrated protein extraction with bio-oil production for microalgal biorefinery. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101918] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Towards the Properties of Different Biomass-Derived Proteins via Various Extraction Methods. Molecules 2020; 25:molecules25030488. [PMID: 31979336 PMCID: PMC7037764 DOI: 10.3390/molecules25030488] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 11/17/2022] Open
Abstract
This study selected three representative protein-rich biomass-brewer's spent grain (BSG), pasture grass (PG), and cyanobacteria (Arthrospira platensis; AP) for protein extraction with different extraction methods (alkaline treatment, aqueous extraction, and subcritical water extraction). The yield, purity, molecular weight, oil-water interfacial tension, and thermal stability of the obtained proteins derived from different biomass and extraction methods were comprehensively characterized and compared. In the view of protein yield and purity, alkaline treatment was found optimal for BSG (21.4 and 60.2 wt.%, respectively) and AP (55.5 and 68.8 wt.%, respectively). With the decreased oil-water interfacial tension, the proteins from all biomass showed the potential to be emulsifier. BSG and AP protein obtained with chemical treatment presented excellent thermal stability. As a novel method, subcritical water extraction is promising in recovering protein from all three biomass with the comparable yield and purity as alkaline treatment. Furthermore, the hydrolyzed protein with lower molecular weight by subcritical water could promote its functions of foaming and emulsifying.
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17
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Arauzo PJ, Du L, Olszewski MP, Meza Zavala MF, Alhnidi MJ, Kruse A. Effect of protein during hydrothermal carbonization of brewer's spent grain. BIORESOURCE TECHNOLOGY 2019; 293:122117. [PMID: 31520863 DOI: 10.1016/j.biortech.2019.122117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
This study has two targets: Studying the extraction of the initial protein content from brewer's spent grain and the impact of protein's extraction on the chemical-physical properties of produced hydrochars. The protein was extracted from brewer's spent grains using the pH-shifting method. The extracted protein was quantified and characterized by their amino acid profile. The hydrothermal treatment was applied at 190 °C and 220 °C for 0.5 h, 1 h, 2 h, and 4 h. The hydrochars and process water were collected and assayed. The hydrochar after protein extraction reveals the lowest yield to hydrochars (67.10-45.14%), higher C/N ratio (19.66-21.33) and lower ash content (1.52-1.72 wt%) compared to the hydrochar without extraction.
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Affiliation(s)
- P J Arauzo
- Department of Conversion Technologies of Biobased Resources, Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany.
| | - L Du
- Department of Conversion Technologies of Biobased Resources, Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany
| | - M P Olszewski
- Department of Conversion Technologies of Biobased Resources, Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany
| | - M F Meza Zavala
- Department of Conversion Technologies of Biobased Resources, Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany
| | - M J Alhnidi
- Department of Conversion Technologies of Biobased Resources, Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany
| | - A Kruse
- Department of Conversion Technologies of Biobased Resources, Institute of Agricultural Engineering, University of Hohenheim, Garbenstrasse 9, 70599 Stuttgart, Germany
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18
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Physicochemical and functional properties of proteins extracted from three microalgal species. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.05.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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19
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Grossmann L, Hinrichs J, Weiss J. Cultivation and downstream processing of microalgae and cyanobacteria to generate protein-based technofunctional food ingredients. Crit Rev Food Sci Nutr 2019; 60:2961-2989. [DOI: 10.1080/10408398.2019.1672137] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Lutz Grossmann
- Department of Food Physics and Meat Science, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Jörg Hinrichs
- Department of Soft Matter Science and Dairy Technology, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Jochen Weiss
- Department of Food Physics and Meat Science, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
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20
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Extraction of Cathepsin D-Like Protease from Neon Flying Squid ( Ommastrephes bartramii) Viscera and Application in Antioxidant Hydrolysate Production. Biomolecules 2019; 9:biom9060228. [PMID: 31212771 PMCID: PMC6627090 DOI: 10.3390/biom9060228] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/09/2019] [Accepted: 06/09/2019] [Indexed: 11/17/2022] Open
Abstract
A protease from neon flying squid (Ommastrephes bartramii) viscera (SVCE3(f)) was partially purified by isoelectric solubilization/precipitation combined with ultra-membrane filtration (ISP-UMF). Two protein bands of 45 and 27 KDa were determined by SDS-PAGE assay. The protease characteristic of the protein band of 45 KDa was confirmed using casein zymography analysis. The result of UPLC-ESI-MS/MS suggested that the band of 45 KDa could be a cathepsin D-like protease. This cathepsin D-like protease showed an optimum pH of 3.0 and optimum temperature of 60 °C when casein was used as s substrate. Furthermore, its protease activity was stable at 30–50 °C and under a pH range of 1.0–5.0, maintaining about 60% of its initial activity. SVCE3(f) can digest half-fin anchovy (Setipinna taty) to generate antioxidant hydrolysates (HAHp-SEs). The degree of hydrolysis (DH) of HAHp-SEs increased along with the hydrolysis time and reached stability after 60 min of digestion. HAHp-SEs(30) with relatively lower DH exhibited the highest DPPH radical scavenging activity as compared with other HAHp-SEs. However, a stronger hydroxyl radical scavenging activity and greater reducing power were observed for HAHp-SEs that underwent higher DH. Accordingly, the partially purified cathepsin D-like protease of neon flying squid viscera using ISP-UMF could have potential application in antioxidant hydrolysates production.
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21
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Lorenzo-Hernando A, Ruiz-Vegas J, Vega-Alegre M, Bolado-Rodríguez S. Recovery of proteins from biomass grown in pig manure microalgae-based treatment plants by alkaline hydrolysis and acidic precipitation. BIORESOURCE TECHNOLOGY 2019; 273:599-607. [PMID: 30481659 DOI: 10.1016/j.biortech.2018.11.068] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 11/15/2018] [Accepted: 11/18/2018] [Indexed: 06/09/2023]
Abstract
The influence of three variables on key parameters of the protein extraction process (an alkaline hydrolysis followed by an acidic precipitation) for biomass from innovative photo-bioreactors for pig manure treatment was evaluated. Alkaline hydrolysis provided high solubilisation values (up to 66.5% of the biomass), augmenting with increasing values of the three studied variables (NaOH concentration, temperature and time). Nevertheless, moderate total (13.2%) and protein extraction yields (16.9%) were obtained, which was attributable to protein denaturation or to the low effectivity of the precipitation method. Extracts rich in proteins (53.5%-77.9%) with suitable amino acid profiles were obtained, but significant amounts of the initial lipids (up to 44.6%) were co-extracted probably due to fatty acids saponification. These results establish the first step for future studies in enhancing cell wall disruption and protein recovery by coupling alkaline hydrolysis with other mechanical pre-treatments, while considering alternative separation and purification methods.
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Affiliation(s)
- Ana Lorenzo-Hernando
- Department of Chemical Engineering and Environmental Technology, University of Valladolid, Calle Doctor Mergelina s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, 47011 Valladolid, Spain
| | - Javier Ruiz-Vegas
- Department of Chemical Engineering and Environmental Technology, University of Valladolid, Calle Doctor Mergelina s/n, 47011 Valladolid, Spain
| | - Marisol Vega-Alegre
- Department of Analytical Chemistry, Campus Miguel Delibes, 8. Paseo Belén 7, 47011 Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, 47011 Valladolid, Spain
| | - Silvia Bolado-Rodríguez
- Department of Chemical Engineering and Environmental Technology, University of Valladolid, Calle Doctor Mergelina s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, 47011 Valladolid, Spain.
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22
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Loveday SM. Food Proteins: Technological, Nutritional, and Sustainability Attributes of Traditional and Emerging Proteins. Annu Rev Food Sci Technol 2019; 10:311-339. [PMID: 30649962 DOI: 10.1146/annurev-food-032818-121128] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Protein is an essential macronutrient and a key structural component of many foods. The nutritional and technological properties of food protein ingredients depend on their source, extraction and purification, modification during food manufacture, and interactions with other food components. In addition to covering these elements, this review seeks to highlight underappreciated aspects of protein environmental sustainability and explores the potential of cultured meat and insect-derived proteins.
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Affiliation(s)
- Simon M Loveday
- Food and Bio-Based Products Group, AgResearch Limited, Palmerston North 4442, New Zealand;
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23
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Galarza VO. Carbohidratos y proteínas en microalgas: potenciales alimentos funcionales. BRAZILIAN JOURNAL OF FOOD TECHNOLOGY 2019. [DOI: 10.1590/1981-6723.04319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Resumen Las microalgas son organismos distribuidos en todo el planeta, con cientos de miles de especies desde que se tienen registros. Sus componentes con potenciales propiedades benéficas en la nutrición y la salud han despertado el interés científico, industrial y comercial. En las últimas décadas se han logrado desarrollar varios productos, entre ellos alimentos funcionales, usando compuestos extraídos de ellas o con la totalidad de su biomasa. Su alta tasa de crecimiento, bajo consumo de nutrientes, relativamente pequeño espacio de producción, plantean un horizonte prometedor como recurso renovable y con grandes beneficios. Las tecnologías para su aprovechamiento se han incrementado y adaptado para mejorar el rendimiento y la calidad, sin embargo, los científicos reconocen que aún existen una serie de desafíos por superar.
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24
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Suarez Garcia E, van Leeuwen J, Safi C, Sijtsma L, Eppink MHM, Wijffels RH, van den Berg C. Selective and energy efficient extraction of functional proteins from microalgae for food applications. BIORESOURCE TECHNOLOGY 2018; 268:197-203. [PMID: 30077880 DOI: 10.1016/j.biortech.2018.07.131] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/25/2018] [Accepted: 07/26/2018] [Indexed: 06/08/2023]
Abstract
The use of a single controlled bead milling step of the microalga Tetraselmis suecica resulted in a soluble fraction, rich in functional proteins. This was achieved by fine-tuning the processing time, thereby exploiting the difference in rates of protein and carbohydrate release during milling. Soluble proteins were extracted under mild conditions -room temperature, no addition of chemicals, pH 6.5-, with a yield of 22.5% and a specific energy consumption of 0.6 kWh kgDW-1, which is within the recommended minimum energy for an extraction step in a biorefinery process. The resulting protein extract contained 50.4% (DW) of proteins and 26.4% carbohydrates, showed light green color and displayed superior surface activity and gelation behavior compared to whey protein isolate. The proposed process is simple (only one bead milling step), scalable, and allows the mild extraction of functional proteins, making it interesting for industrial applications in the food industry.
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Affiliation(s)
- E Suarez Garcia
- Bioprocess Engineering, AlgaePARC, Wageningen University and Research, PO Box 16, 6700 AA Wageningen, The Netherlands.
| | - J van Leeuwen
- Wageningen Food & Biobased Research, Wageningen University and Research, PO Box 17, 6700 AA Wageningen, The Netherlands
| | - C Safi
- Wageningen Food & Biobased Research, Wageningen University and Research, PO Box 17, 6700 AA Wageningen, The Netherlands
| | - L Sijtsma
- Wageningen Food & Biobased Research, Wageningen University and Research, PO Box 17, 6700 AA Wageningen, The Netherlands
| | - M H M Eppink
- Bioprocess Engineering, AlgaePARC, Wageningen University and Research, PO Box 16, 6700 AA Wageningen, The Netherlands
| | - R H Wijffels
- Bioprocess Engineering, AlgaePARC, Wageningen University and Research, PO Box 16, 6700 AA Wageningen, The Netherlands; Nord University, Faculty of Biosciences and Aquaculture, N-8049 Bodø, Norway
| | - C van den Berg
- Bioprocess Engineering, AlgaePARC, Wageningen University and Research, PO Box 16, 6700 AA Wageningen, The Netherlands
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25
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Garcia ES, van Leeuwen JJA, Safi C, Sijtsma L, van den Broek LAM, Eppink MHM, Wijffels RH, van den Berg C. Techno-Functional Properties of Crude Extracts from the Green Microalga Tetraselmis suecica. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7831-7838. [PMID: 29976070 PMCID: PMC6150664 DOI: 10.1021/acs.jafc.8b01884] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/13/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
A mild fractionation process to extract functional biomolecules from green microalgae was implemented. The process includes bead milling, centrifugation, and filtration with several membrane cut-offs. For each fraction, the corresponding composition was measured, and the surface activity and gelation behavior were determined. A maximum protein yield of 12% was obtained in the supernatant after bead milling and between 3.2 and 11.7% after filtration. Compared to whey protein isolate, most of the algae fractions exhibited comparable or enhanced functionality. Surface activity for air-water and oil-water interfaces and gelation activities were notably superior for the retentate fractions compared to the permeates. It is proposed that such functionality in the retentates is due to the presence of hydrophobic compounds and molecular complexes exhibiting a similar behavior as Pickering particles. We demonstrated that excellent functionality can be obtained with crude fractions, requiring minimum processing and, thus, constituting an interesting option for commercial applications.
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Affiliation(s)
- E. Suarez Garcia
- Bioprocess
Engineering, AlgaePARC, Wageningen University
and Research, P.O. Box 16, 6700 AA Wageningen, The Netherlands
| | - J. J. A. van Leeuwen
- Wageningen
Food & Biobased Research, Wageningen
University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - C. Safi
- Wageningen
Food & Biobased Research, Wageningen
University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - L. Sijtsma
- Wageningen
Food & Biobased Research, Wageningen
University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - L. A. M. van den Broek
- Wageningen
Food & Biobased Research, Wageningen
University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - M. H. M. Eppink
- Bioprocess
Engineering, AlgaePARC, Wageningen University
and Research, P.O. Box 16, 6700 AA Wageningen, The Netherlands
| | - R. H. Wijffels
- Bioprocess
Engineering, AlgaePARC, Wageningen University
and Research, P.O. Box 16, 6700 AA Wageningen, The Netherlands
- Nord
University, Faculty of Biosciences and Aquaculture, N-8049 Bodø, Norway
| | - C. van den Berg
- Bioprocess
Engineering, AlgaePARC, Wageningen University
and Research, P.O. Box 16, 6700 AA Wageningen, The Netherlands
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27
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Tamayo Tenorio A, Kyriakopoulou KE, Suarez-Garcia E, van den Berg C, van der Goot AJ. Understanding differences in protein fractionation from conventional crops, and herbaceous and aquatic biomass - Consequences for industrial use. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.11.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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28
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Glasson CR, Sims IM, Carnachan SM, de Nys R, Magnusson M. A cascading biorefinery process targeting sulfated polysaccharides (ulvan) from Ulva ohnoi. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.07.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Safi C, Olivieri G, Campos RP, Engelen-Smit N, Mulder WJ, van den Broek LAM, Sijtsma L. Biorefinery of microalgal soluble proteins by sequential processing and membrane filtration. BIORESOURCE TECHNOLOGY 2017; 225:151-158. [PMID: 27888732 DOI: 10.1016/j.biortech.2016.11.068] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/15/2016] [Accepted: 11/16/2016] [Indexed: 06/06/2023]
Abstract
A mild biorefinery process was investigated on the microalga Nannochloropsis gaditana, to obtain an enriched fraction of water soluble proteins free from chlorophyll. After harvesting, a 100g.L-1 solution of cells was first subjected to cell disruption by either high-pressure homogenization (HPH) or enzymatic treatment (ENZ). HPH resulted in a larger release of proteins (49%) in the aqueous phase compared to the Alcalase incubation (35%). In both cases, an ultrafiltration/diafiltration (UF/DF) was then performed on the supernatant obtained from cell disruption by testing different membrane cut-off (1000kDa, 500kDa and 300kDa). After optimising the process conditions, the combination of ENZ→UF/DF ended in a larger overall yield of water soluble proteins (24.8%) in the permeate compared to the combination of HPH→UF/DF (17.4%). A gel polarization model was implemented to assess the maximum achievable concentration factor during ultrafiltration and the mass transfer coefficient related to the theoretical permeation flux rate.
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Affiliation(s)
- C Safi
- Wageningen Food & Biobased Research, AlgaePARC, PO Box 17, 6700 AA Wageningen, The Netherlands.
| | - G Olivieri
- Bioprocess Engineering, AlgaePARC, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands; Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, Piazzale V. Tecchio 80, 80125 Napoli, Italy
| | - R P Campos
- Wageningen Food & Biobased Research, AlgaePARC, PO Box 17, 6700 AA Wageningen, The Netherlands
| | - N Engelen-Smit
- Wageningen Food & Biobased Research, AlgaePARC, PO Box 17, 6700 AA Wageningen, The Netherlands
| | - W J Mulder
- Wageningen Food & Biobased Research, AlgaePARC, PO Box 17, 6700 AA Wageningen, The Netherlands
| | - L A M van den Broek
- Wageningen Food & Biobased Research, AlgaePARC, PO Box 17, 6700 AA Wageningen, The Netherlands
| | - L Sijtsma
- Wageningen Food & Biobased Research, AlgaePARC, PO Box 17, 6700 AA Wageningen, The Netherlands
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30
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Eppink MHM, Olivieri G, Reith H, van den Berg C, Barbosa MJ, Wijffels RH. From Current Algae Products to Future Biorefinery Practices: A Review. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2017; 166:99-123. [PMID: 28265702 DOI: 10.1007/10_2016_64] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Microalgae are considered to be one of the most promising next generation bio-based/food feedstocks with a unique lipid composition, high protein content, and an almost unlimited amount of other bio-active molecules. High-value components such as the soluble proteins, (poly) unsaturated fatty acids, pigments, and carbohydrates can be used as an important ingredient for several markets, such as the food/feed/chemical/cosmetics and health industries. Although cultivation costs have decreased significantly in the last few decades, large microalgae production processes become economically viable if all complex compounds are optimally valorized in their functional state. To isolate these functional compounds from the biomass, cost-effective, mild, and energy-efficient biorefinery techniques need to be developed and applied. In this review we describe current microalgae biorefinery strategies and the derived products, followed by new technological developments and an outlook toward future products and the biorefinery philosophy.
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Affiliation(s)
- Michel H M Eppink
- Bioprocess Engineering, AlgaePARC, Wageningen University, PO Box. 16, 6700 AA, Wageningen, The Netherlands.
| | - Giuseppe Olivieri
- Bioprocess Engineering, AlgaePARC, Wageningen University, PO Box. 16, 6700 AA, Wageningen, The Netherlands
| | - Hans Reith
- Bioprocess Engineering, AlgaePARC, Wageningen University, PO Box. 16, 6700 AA, Wageningen, The Netherlands
| | - Corjan van den Berg
- Bioprocess Engineering, AlgaePARC, Wageningen University, PO Box. 16, 6700 AA, Wageningen, The Netherlands
| | - Maria J Barbosa
- Bioprocess Engineering, AlgaePARC, Wageningen University, PO Box. 16, 6700 AA, Wageningen, The Netherlands
| | - Rene H Wijffels
- Bioprocess Engineering, AlgaePARC, Wageningen University, PO Box. 16, 6700 AA, Wageningen, The Netherlands.,University of Nordland, 8049, Bodø, Norway
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Cavonius LR, Albers E, Undeland I. In vitro bioaccessibility of proteins and lipids of pH-shift processed Nannochloropsis oculata microalga. Food Funct 2016; 7:2016-24. [PMID: 27045666 DOI: 10.1039/c5fo01144b] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The pH-shift process fractionates biomass into soluble proteins and insoluble fractions, followed by precipitation and recovery of the solubilized proteins. Nannochloropsis oculata in seawater was subjected to the pH-shift process, followed by digestion of various intermediates and product fractions of the process, using the Infogest in vitro digestion model (Minekus et al., 2014) with added gastric lipase. As measures for protein and lipid accessibility, degrees of protein hydrolysis and fatty acid liberation were assessed post-digestion and compared to the amounts of peptide bonds and total fatty acids present in the raw materials. Results showed that neither proteins nor lipids of intact Nannochloropsis cells were accessible to the mammalian digestive enzymes used in the digestion model. Cell disruption, and to a lesser extent, further pH-shift processing with protein solubilisation at pH 7 or pH 10, increased the accessibility of lipids. For proteins, differences amongst the pH-shift processed materials were non-significant, though pre-freezing the product prior to digestion increased the accessibility from 32% to 47%. For fatty acids, pH-shift process-products gave rise to 43% to 52% lipolysis, with higher lipolysis for products solubilised at pH 10 as opposed to pH 7. Our results indicate the importance of processing to produce an algal product that has beneficial nutritional properties when applied as food or feed.
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Affiliation(s)
- L R Cavonius
- Chalmers University of Technology, Biology and Biological Engineering, Kemigården 4, Gothenburg, Sweden.
| | - E Albers
- Chalmers University of Technology, Biology and Biological Engineering, Kemigården 4, Gothenburg, Sweden.
| | - I Undeland
- Chalmers University of Technology, Biology and Biological Engineering, Kemigården 4, Gothenburg, Sweden.
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Vilg JV, Undeland I. pH-driven solubilization and isoelectric precipitation of proteins from the brown seaweed Saccharina latissima-effects of osmotic shock, water volume and temperature. JOURNAL OF APPLIED PHYCOLOGY 2016; 29:585-593. [PMID: 28344391 PMCID: PMC5346136 DOI: 10.1007/s10811-016-0957-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 09/07/2016] [Accepted: 09/08/2016] [Indexed: 05/31/2023]
Abstract
In the light of the global search for novel and sustainable protein sources, macroalgal proteins are becoming an attractive target. To date, mainly red and green macroalgae have been investigated in this respect, whereas the brown species are less studied, possibly because of the lower content of protein. In a biorefinery context, however, the protein content of brown macroalgae can still be economically interesting due to fast growth and the possibility to co-extract other compounds, such as alginates. The aim of this study was to develop a simple, scalable pH shift-based protein isolation technique applicable on wet Saccharina latissima biomass. Factors investigated were extraction volume, temperature, protein solubilization pH, osmoshock pretreatment and protein precipitation pH. Maximum protein solubility was obtained at pH 12, where 34 % of the total protein content could be extracted with 5.56 volumes of extraction solution (20 volumes on dry weight (dw) basis). Osmoshocking significantly increased the yield, and 20, 40 and 60 volumes of water (dw basis) gave 45.1, 46.8 and 59.5 % yield, respectively. The temperature during osmoshocking did not significantly affect the extraction yield, and extended time (16 vs. 1 or 2 h) reduced protein yield. Precipitation of solubilized proteins was possible below pH 4; the highest precipitation yield, 34.5 %, was obtained at pH 2. After combined alkaline extraction and acid precipitation, 16.01 % of the Saccharina proteins were recovered, which can be considered acceptable in comparison to other studies on algae but leaves some room for improvement when compared to protein extraction from, for instance, soy.
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Affiliation(s)
- Jenny Veide Vilg
- Food and Nutrition Science, Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Ingrid Undeland
- Food and Nutrition Science, Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
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Baumgardt FJ, Filho AZ, Brandalize MV, da Costa DC, Antoniosi Filho NR, Abreu PC, Corazza ML, Ramos LP. Lipid content and fatty acid profile of Nannochloropsis oculata before and after extraction with conventional solvents and/or compressed fluids. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2015.11.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chen CY, Chang YH, Chang HY. Outdoor cultivation of Chlorella vulgaris FSP-E in vertical tubular-type photobioreactors for microalgal protein production. ALGAL RES 2016. [DOI: 10.1016/j.algal.2015.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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