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D'Amore T, Chaari M, Falco G, De Gregorio G, Zaraî Jaouadi N, Ali DS, Sarkar T, Smaoui S. When sustainability meets health and innovation: The case of Citrus by-products for cancer chemoprevention and applications in functional foods. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2024; 58:103163. [DOI: 10.1016/j.bcab.2024.103163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
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2
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Barreto JVDO, Casanova LM, Junior AN, Reis-Mansur MCPP, Vermelho AB. Microbial Pigments: Major Groups and Industrial Applications. Microorganisms 2023; 11:2920. [PMID: 38138065 PMCID: PMC10745774 DOI: 10.3390/microorganisms11122920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Microbial pigments have many structures and functions with excellent characteristics, such as being biodegradable, non-toxic, and ecologically friendly, constituting an important source of pigments. Industrial production presents a bottleneck in production cost that restricts large-scale commercialization. However, microbial pigments are progressively gaining popularity because of their health advantages. The development of metabolic engineering and cost reduction of the bioprocess using industry by-products opened possibilities for cost and quality improvements in all production phases. We are thus addressing several points related to microbial pigments, including the major classes and structures found, the advantages of use, the biotechnological applications in different industrial sectors, their characteristics, and their impacts on the environment and society.
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Affiliation(s)
| | | | | | | | - Alane Beatriz Vermelho
- Bioinovar Laboratory, Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (J.V.d.O.B.); (L.M.C.); (A.N.J.); (M.C.P.P.R.-M.)
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Afifi SM, Gök R, Eikenberg I, Krygier D, Rottmann E, Stübler AS, Aganovic K, Hillebrand S, Esatbeyoglu T. Comparative flavonoid profile of orange ( Citrus sinensis) flavedo and albedo extracted by conventional and emerging techniques using UPLC-IMS-MS, chemometrics and antioxidant effects. Front Nutr 2023; 10:1158473. [PMID: 37346911 PMCID: PMC10279959 DOI: 10.3389/fnut.2023.1158473] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/16/2023] [Indexed: 06/23/2023] Open
Abstract
Introduction Citrus fruits are one of the most frequently counterfeited processed products in the world. In the juice production alone, the peels, divided into flavedo and albedo, are the main waste product. The extracts of this by-product are enriched with many bioactive substances. Newer extraction techniques generally have milder extraction conditions with simultaneous improvement of the extraction process. Methods This study presents a combinatorial approach utilizing data-independent acquisition-based ion mobility spectrometry coupled to tandem mass spectrometry. Integrating orthogonal collision cross section (CCS) data matching simultaneously improves the confidence in metabolite identification in flavedo and albedo tissues from Citrus sinensis. Furthermore, four different extraction approaches [conventional, ultrasonic, High Hydrostatic Pressure (HHP) and Pulsed Electric Field (PEF)] with various optimized processing conditions were compared in terms of antioxidant effects and flavonoid profile particularly polymethoxy flavones (PMFs). Results A total number of 57 metabolites were identified, 15 of which were present in both flavedo and albedo, forming a good qualitative overlapping of distributed flavonoids. For flavedo samples, the antioxidant activity was higher for PEF and HHP treated samples compared to other extraction methods. However, ethyl acetate extract exhibited the highest antioxidant effects in albedo samples attributed to different qualitative composition content rather than various quantities of same metabolites. The optimum processing conditions for albedo extraction using HHP and PEF were 200 MPa and 15 kJ/kg at 10 kV, respectively. While, HHP at medium pressure (400 MPa) and PEF at 15 kJ/kg/3 kV were the optimum conditions for flavedo extraction. Conclusion Chemometric analysis of the dataset indicated that orange flavedo can be a valid source of soluble phenolic compounds especially PMFs. In order to achieve cross-application of production, future study should concentrate on how citrus PMFs correlate with biological engineering techniques such as breeding, genetic engineering, and fermentation engineering.
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Affiliation(s)
- Sherif M. Afifi
- Institute of Food Science and Human Nutrition, Gottfried Wilhelm Leibniz Universität Hannover, Hannover, Germany
- Pharmacognosy Department, Faculty of Pharmacy, University of Sadat City, Sadat City, Egypt
| | - Recep Gök
- Institute of Food Chemistry, Technische Universität Braunschweig, Braunschweig, Germany
| | | | - Dennis Krygier
- Institute of Food Science and Human Nutrition, Gottfried Wilhelm Leibniz Universität Hannover, Hannover, Germany
| | | | | | - Kemal Aganovic
- German Institute of Food Technologies (DIL e.V.), Quakenbrück, Germany
| | | | - Tuba Esatbeyoglu
- Institute of Food Science and Human Nutrition, Gottfried Wilhelm Leibniz Universität Hannover, Hannover, Germany
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Holistic exploitation of pulsed electric field (PEF)-treated and lipid extracted microalgae Auxenochlorella protothecoides, utilizing anaerobic digestion (AD). ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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5
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Cross-Comparison of the Impact of Grass Silage Pulsed Electric Field and Microwave-Induced Disintegration on Biogas Production Efficiency. ENERGIES 2022. [DOI: 10.3390/en15145122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Lignocellulosic biomass is included in the group of renewable energy sources. Its calorific value is high, owing to which it can be successfully used in the production of second-generation fuels, e.g., biogas. However, its complex structure makes it necessary to apply a pretreatment in order to increase the biogas output. This study presents the usability of a pulsed electric field in grass silage pretreatment in methane fermentation and compares it with microwave-induced disintegration. The experiment shows that substrate disintegration with a pulsed electric field (PEF) results in an increase in methane output. The productivity of methane from PEF pretreatment silage increased by 20.1% compared to the untreated control. The application of microwave disintegration, with the assumption that the same energy is used for the pretreatment, resulted in a methane output increase of 6% compared to the control. The highest biogas production output in PEF-pretreated samples was 535.57 NL/kg VS, while the highest biogas output from substrates pretreated with microwaves was 487.18 NL/kg VS.
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Abstract
Nowadays, the climate mitigation policies of EU promote the energy production based on renewable resources. Anaerobic digestion (AD) constitutes a biochemical process that can convert lignocellulosic materials into biogas, used for chemical products isolation or energy production, in the form of electricity, heat or fuels. Such practices are accompanied by several economic, environmental and climatic benefits. The method of AD is an effective method of utilization of several different low-value and negative-cost highly available materials of residual character, such as the lignocellulosic wastes coming from forest, agricultural or marine biomass utilization processes, in order to convert them into directly usable energy. Lignin depolymerization remains a great challenge for the establishment of a full scale process for AD of lignin waste. This review analyzes the method of anaerobic digestion (biomethanation), summarizes the technology and standards involved, the progress achieved so far on the depolymerization/pre-treatment methods of lignocellulosic bio-wastes and the respective residual byproducts coming from industrial processes, aiming to their conversion into energy and the current attempts concerning the utilization of the produced biogas. Substrates’ mechanical, physical, thermal, chemical, and biological pretreatments or a combination of those before biogas production enhance the hydrolysis stage efficiency and, therefore, biogas generation. AD systems are immensely expanding globally, especially in Europe, meeting the high demands of humans for clean energy.
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Nowacka M, Dadan M, Janowicz M, Wiktor A, Witrowa-Rajchert D, Mandal R, Pratap-Singh A, Janiszewska-Turak E. Effect of nonthermal treatments on selected natural food pigments and color changes in plant material. Compr Rev Food Sci Food Saf 2021; 20:5097-5144. [PMID: 34402592 DOI: 10.1111/1541-4337.12824] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/21/2021] [Accepted: 07/12/2021] [Indexed: 12/01/2022]
Abstract
In recent years, traditional high-temperature food processing is continuously being replaced by nonthermal processes. Nonthermal processes have a positive effect on food quality, including color and maintaining natural food pigments. Thus, this article describes the influence of nonthermal, new, and traditional treatments on natural food pigments and color changes in plant materials. Characteristics of natural pigments, such as anthocyanins, betalains, carotenoids, chlorophylls, and so forth available in the plant tissue, are shortly presented. Also, the characteristics and mechanism of nonthermal processes such as pulsed electric field, ultrasound, high hydrostatic pressure, pulsed light, cold plasma, supercritical fluid extraction, and lactic acid fermentation are described. Furthermore, the disadvantages of these processes are mentioned. Each treatment is evaluated in terms of its effects on all types of natural food pigments, and the possible applications are discussed. Analysis of the latest literature showed that the use of nonthermal technologies resulted in better preservation of pigments contained in the plant tissue and improved yield of extraction. However, it is important to select the appropriate processing parameters and to optimize this process in relation to a specific type of raw material.
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Affiliation(s)
- Małgorzata Nowacka
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
| | - Magdalena Dadan
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
| | - Monika Janowicz
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
| | - Artur Wiktor
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
| | - Dorota Witrowa-Rajchert
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
| | - Ronit Mandal
- Food, Nutrition and Health Program, Faculty of Land and Food Systems (LFS), The University of British Columbia, Vancouver, British Columbia, Canada
| | - Anubhav Pratap-Singh
- Food, Nutrition and Health Program, Faculty of Land and Food Systems (LFS), The University of British Columbia, Vancouver, British Columbia, Canada
| | - Emilia Janiszewska-Turak
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
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Olatunji KO, Ahmed NA, Ogunkunle O. Optimization of biogas yield from lignocellulosic materials with different pretreatment methods: a review. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:159. [PMID: 34281615 PMCID: PMC8287798 DOI: 10.1186/s13068-021-02012-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 07/09/2021] [Indexed: 05/10/2023]
Abstract
Population increase and industrialization has resulted in high energy demand and consumptions, and presently, fossil fuels are the major source of staple energy, supplying 80% of the entire consumption. This has contributed immensely to the greenhouse gas emission and leading to global warming, and as a result of this, there is a tremendous urgency to investigate and improve fresh and renewable energy sources worldwide. One of such renewable energy sources is biogas that is generated by anaerobic fermentation that uses different wastes such as agricultural residues, animal manure, and other organic wastes. During anaerobic digestion, hydrolysis of substrates is regarded as the most crucial stage in the process of biogas generation. However, this process is not always efficient because of the domineering stableness of substrates to enzymatic or bacteria assaults, but substrates' pretreatment before biogas production will enhance biogas production. The principal objective of pretreatments is to ease the accessibility of the enzymes to the lignin, cellulose, and hemicellulose which leads to degradation of the substrates. Hence, the use of pretreatment for catalysis of lignocellulose substrates is beneficial for the production of cost-efficient and eco-friendly process. In this review, we discussed different pretreatment technologies of hydrolysis and their restrictions. The review has shown that different pretreatments have varying effects on lignin, cellulose, and hemicellulose degradation and biogas yield of different substrate and the choice of pretreatment technique will devolve on the intending final products of the process.
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Affiliation(s)
- Kehinde Oladoke Olatunji
- Department of Mechanical Engineering Science, Faculty of Engineering and Built Environment, University of Johannesburg, Johannesburg, South Africa.
| | - Noor A Ahmed
- Department of Mechanical Engineering Science, Faculty of Engineering and Built Environment, University of Johannesburg, Johannesburg, South Africa
| | - Oyetola Ogunkunle
- Department of Mechanical Engineering Science, Faculty of Engineering and Built Environment, University of Johannesburg, Johannesburg, South Africa
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Extraction of Pigments from Microalgae and Cyanobacteria—A Review on Current Methodologies. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11115187] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Pigments from microalgae and cyanobacteria have attracted great interest for industrial applications due to their bioactive potential and their natural product attributes. These pigments are usually sold as extracts, to overcome purification costs. The extraction of these compounds is based on cell disruption methodologies and chemical solubility of compounds. Different cell disruption methodologies have been used for pigment extraction, such as sonication, homogenization, high-pressure, CO2 supercritical fluid extraction, enzymatic extraction, and some other promising extraction methodologies such as ohmic heating and electric pulse technologies. The biggest constrain on pigment bioprocessing comes from the installation and operation costs; thus, fundamental and applied research are still needed to overcome such constrains and give the microalgae and cyanobacteria industry an opportunity in the world market. In this review, the main extraction methodologies will be discussed, taking into account the advantages and disadvantages for each kind of pigment, type of organism, cost, and final market.
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A Systemic Review on Microalgal Peptides: Bioprocess and Sustainable Applications. SUSTAINABILITY 2021. [DOI: 10.3390/su13063262] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nowadays, microalgal research is predominantly centered on an industrial scale. In general, multipotent bioactive peptides are the advantages over focal points over utilitarian nourishment as well as nutraceuticals. Microalgal peptides are now profoundly connected with biological properties rather than nutritive. Numerous techniques are employed to purify active peptides from algal protein using enzymatic hydrolysis; it is broadly used for numerous favorable circumstances. There is a chance to utilize microalgal peptides for human well-being as nutritive enhancements. This exhaustive survey details the utilization of microalgal peptides as antioxidant, anti-cancerous, anti-hypersensitive, anti-atherosclerotic, and nutritional functional foods. It is also exploring the novel technologies for the production of active peptides, for instance, the use of algal peptides as food for human health discovered restrictions, where peptides are sensitive to hydrolysis protease degradation. This review emphasizes the issue of active peptides in gastrointestinal transit, which has to be solved in the future, and prompt impacts.
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11
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Green recovery of Se-rich protein and antioxidant peptides from Cardamine Violifolia: Composition and bioactivity. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100743] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Review of the application of pulsed electric fields (PEF) technology for food processing in China. Food Res Int 2020; 137:109715. [PMID: 33233287 DOI: 10.1016/j.foodres.2020.109715] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/24/2020] [Accepted: 09/11/2020] [Indexed: 12/17/2022]
Abstract
With the improvement of living standards, growing consumer demand for high-quality and natural foods has led to the development of new mild processes to enhance or replace conventional thermal and chemical methods for food processing. Pulsed electric fields (PEF) is an emerging and promising non-thermal food processing technology, which is ongoing from laboratory and pilot plant level to the industrial level. Chinese researchers have made tremendous advances in the potential applications of PEF for processing a wide range of food commodities over the last few years, which contributes to the current understanding and development of PEF technology. The objective of this paper is to conduct a systematic review on the achievements of PEF technology used for food processing in China and the corresponding processing principles. Research on the applicability of PEF in food processing suggests that PEF can be used alone or in combination with other methods, not only to inactivate microorganisms and extract active constituents, but also to modify biomacromolecules, enhance chemical reactions and accelerate the aging of fermented foods, which are mainly related to permeabilization of biomembranes, occurrence of electrochemical and electrolytic reactions, polarization and realignment of molecules, and reduction of activation energy of chemical reactions induced by PEF treatments. In addition, some of the most important challenges for the successful implementation of large-scale industrial applications of PEF technology in the food industry are discussed. The results bring out the benefits of both researchers and the industry.
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Zia S, Khan MR, Shabbir MA, Aslam Maan A, Khan MKI, Nadeem M, Khalil AA, Din A, Aadil RM. An Inclusive Overview of Advanced Thermal and Nonthermal Extraction Techniques for Bioactive Compounds in Food and Food-related Matrices. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1772283] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sania Zia
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Moazzam Rafiq Khan
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Asim Shabbir
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Abid Aslam Maan
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
- Department of Food Engineering, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Kashif Iqbal Khan
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
- Department of Food Engineering, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Nadeem
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Pakistan
| | - Anees Ahmed Khalil
- University Institute of Diet and Nutritional Sciences (UIDNS), Faculty of Allied Health Sciences, The University of Lahore, Pakistan
| | - Ahmad Din
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
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14
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Sustainable extraction of valuable components from Spirulina assisted by pulsed electric fields technology. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101914] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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15
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Martínez JM, Schottroff F, Haas K, Fauster T, Sajfrtová M, Álvarez I, Raso J, Jaeger H. Evaluation of pulsed electric fields technology for the improvement of subsequent carotenoid extraction from dried Rhodotorula glutinis yeast. Food Chem 2020; 323:126824. [PMID: 32334308 DOI: 10.1016/j.foodchem.2020.126824] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/09/2020] [Accepted: 04/13/2020] [Indexed: 11/20/2022]
Abstract
This research aims to evaluate whether the electroporation of Rhodotorula glutinis fresh biomass improved the subsequent extraction of carotenoids from dry biomass using supercritical CO2 and traditional solvent extraction. Supercritical CO2 extraction yields were low after all treatments assayed. Similarly, solvent extraction of carotenoids from untreated or PEF treated cells that were immediately freeze-dried after the pre-treatment was neither effective (extraction yield < 20% total content). Conversely, PEF-treatment and subsequent intermediate incubation in aqueous buffer for 24 h, followed by freeze-drying and extraction, led to a large improvement with the three solvents assayed (acetone, hexane, ethanol). Ethanol was the most efficient, reaching an extraction yield of 80% of total carotenoid, which represents a recovery of 267 µg/gdw. Torularhodin esters constituted the main carotenoid found in the extracts. This is of great interest, as ethanol is eco-friendly solvent and potential applications of torularhodin range from food to medical purposes.
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Affiliation(s)
- J M Martínez
- Food Technology, University of Zaragoza, Spain; Institute of Food Technology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria.
| | - F Schottroff
- Institute of Food Technology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - K Haas
- Institute of Food Technology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - T Fauster
- Institute of Food Technology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - M Sajfrtová
- Institute of Chemical Process Fundamentals of the CAS, v.v.i., Prague, Czech Republic
| | - I Álvarez
- Food Technology, University of Zaragoza, Spain
| | - J Raso
- Food Technology, University of Zaragoza, Spain
| | - H Jaeger
- Institute of Food Technology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
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Martínez JM, Delso C, Álvarez I, Raso J. Pulsed electric field-assisted extraction of valuable compounds from microorganisms. Compr Rev Food Sci Food Saf 2020; 19:530-552. [PMID: 33325176 DOI: 10.1111/1541-4337.12512] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 10/15/2019] [Accepted: 11/08/2019] [Indexed: 01/24/2023]
Abstract
Microorganisms (bacteria, yeast, and microalgae) are a promising resource for products of high value such as nutrients, pigments, and enzymes. The majority of these compounds of interest remain inside the cell, thus making it necessary to extract and purify them before use. This review presents the challenges and opportunities in the production of these compounds, the microbial structure and the location of target compounds in the cells, the different procedures proposed for improving extraction of these compounds, and pulsed electric field (PEF)-assisted extraction as alternative to these procedures. PEF is a nonthermal technology that produces a precise action on the cytoplasmic membrane improving the selective release of intracellular compounds while avoiding undesirable consequences of heating on the characteristics and purity of the extracts. PEF pretreatment with low energetic requirements allows for high extraction yields. However, PEF parameters should be tailored to each microbial cell, according to their structure, size, and other factors affecting efficiency. Furthermore, the recent discovery of the triggering effect of enzymatic activity during cell incubation after electroporation opens up the possibility of new implementations of PEF for the recovery of compounds that are bounded or assembled in structures. Similarly, PEF parameters and suspension storage conditions need to be optimized to reach the desired effect. PEF can be applied in continuous flow and is adaptable to industrial equipment, making it feasible for scale-up to large processing capacities.
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Affiliation(s)
- Juan M Martínez
- Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Carlota Delso
- Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Ignacio Álvarez
- Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Javier Raso
- Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, Zaragoza, Spain
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17
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Nanosecond pulses targeting intracellular ablation increase destruction of tumor cells with irregular morphology. Bioelectrochemistry 2019; 132:107432. [PMID: 31918056 DOI: 10.1016/j.bioelechem.2019.107432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 11/22/2019] [Accepted: 11/22/2019] [Indexed: 01/04/2023]
Abstract
The decrease in killing sensitivity of the cell membrane to microsecond pulse electric fields (μs-PEFs) is ascribed mainly to the aberrant morphology of cancer cells, with clear statistical correlations observed between cell size and shape defects and the worsening of the electrical response to the PEF. In this paper, nanosecond pulsed electric fields (ns-PEFs) inducing the nucleus effect and μs-PEFs targeting the cell membrane were combined to enhance destruction of irregular cells. The fluorescence dissipation levels of the nuclear membrane and cell membrane exposed to the μs, ns, and ns + μs pulse protocols were measured and compared, and a dynamic electroporation model of irregular cells was established by the finite element software COMSOL. The results suggest that the cell membrane disruption induced by μs-PEFs is worse for extremely irregular cells and depends strongly on cellular morphology. However, the nuclear membrane disruption induced by ns-PEFs does not scale with irregularity, suggesting the use of a combination of ns-PEFs with μs-PEFs to target the nuclear and cell membranes. We demonstrate that ns + μs pulses can significantly enhance the fluorescence dissipation of the cell and nuclear membranes. Overall, our findings indicate that ns + μs pulses may be useful in the effective killing of irregular cells.
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Buchmann L, Brändle I, Haberkorn I, Hiestand M, Mathys A. Pulsed electric field based cyclic protein extraction of microalgae towards closed-loop biorefinery concepts. BIORESOURCE TECHNOLOGY 2019; 291:121870. [PMID: 31382092 DOI: 10.1016/j.biortech.2019.121870] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
Microalgae-based biorefinery concepts can contribute to providing sufficient resources for a growing world population. However, the performance needs to be improved, which requires innovative technologies and processes. Continuous extraction from Chlorella vulgaris cultures via pulsed electric field (PEF) processing might be a viable process to increase the performance of microalgae-based biorefinery concepts. In this study, increasing protein extraction rates were observed with increasing electric field strength, up to 96.6 ± 4.8% of the free protein in the microalgae. However, increased extraction rates negatively influenced microalgae growth after PEF treatment. A free protein extraction rate up to 29.1 ± 1.1% without a significant influence on microalgal growth after 168 h was achieved (p = 0.788). Within the scope of this work, a protocol for continuous protein extraction during microalgae cultivation by PEF processing was developed. The incorporation of innovative downstream into upstream processing could be a viable future concept.
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Affiliation(s)
- Leandro Buchmann
- ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland
| | - Ivraina Brändle
- ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland
| | - Iris Haberkorn
- ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland
| | - Michèle Hiestand
- ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland
| | - Alexander Mathys
- ETH Zurich, Department of Health Sciences and Technology, Institute of Food Nutrition and Health, IFNH, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, Zurich 8092, Switzerland.
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Martínez JM, Gojkovic Z, Ferro L, Maza M, Álvarez I, Raso J, Funk C. Use of pulsed electric field permeabilization to extract astaxanthin from the Nordic microalga Haematococcus pluvialis. BIORESOURCE TECHNOLOGY 2019; 289:121694. [PMID: 31254897 DOI: 10.1016/j.biortech.2019.121694] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 05/28/2023]
Abstract
The Nordic microalgal strain Haematococcus pluvialis was exposed to various stress conditions to induce astaxanthin accumulation. Highest carotenoid content (19.1 mg·g-1dw) was achieved in nitrogen-free culture medium at a high light intensity. The efficiency of Pulsed Electric Field (PEF) pre-treatment of stressed fresh biomass of H. pluvialis followed by incubation in the growth medium was compared to classical disruption methods (bead-beating, freezing-thawing, thermal treatment or ultrasound) for the subsequent extraction of astaxanthin in ethanol. N-starved cells treated with PEF followed by aqueous incubation for 6 h resulted in extraction of 96% (18.3 mgcar·gdw-1) of the total carotenoid content compared to 80% (15.3 mgcar·gdw-1) using other physical methods. The proportion of free forms of astaxanthin was higher in PEF-treated samples compared to mechanical disruption, suggesting PEF triggering an esterase activity. PEF pre-treatment of the cells followed by incubation in growth medium improved astaxanthin extraction in the eco-friendly solvent ethanol.
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Affiliation(s)
- Juan Manuel Martínez
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden; Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Zivan Gojkovic
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Lorenza Ferro
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Marcos Maza
- Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Ignacio Álvarez
- Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Javier Raso
- Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Christiane Funk
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden.
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Scherer D, Krust D, Frey W, Mueller G, Nick P, Gusbeth C. Pulsed electric field (PEF)-assisted protein recovery from Chlorella vulgaris is mediated by an enzymatic process after cell death. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101536] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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Bai Y, Huo ZY, Wu YH, Hu HY. Efficient nanowire-assisted electroporation and cellular inclusion release of microalgal cells achieved by a low voltage. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 667:191-196. [PMID: 30826679 DOI: 10.1016/j.scitotenv.2019.02.337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/13/2019] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
A mild and low-energy cell disruption method with high efficiency has growing application potential in both the extraction of high-value microalgal products and the inactivation of microalgal cells. Conventional technologies available have disadvantages including high energy consumption, the use of chemicals and so on. Here, this study developed an efficient microalgal cell disruption method using the copper oxide nanowire (CuONW)-modified three-dimensional (3D) copper foam electrodes with a low applied voltage. Electrodes with nanowires synthesized at 400 °C, the optimal preparation temperature, achieved efficient microalgal cell electroporation. Microalgal cells were completely inactivated and disrupted at the voltage of 2 V with the hydraulic retention time (HRT) of 10 s. Scanning electron microscopy (SEM) images showed obvious electroporation damage on the cell surface upon electroporation-treatment (2 V, 30 s). The amount of released cellular inclusion increased significantly with prolonged HRT and the energy consumption of this technology was only 0.014 kWh/kg via the treatment of 2 V and 10 s. This study provided a novel, energy-efficient and chemical-free technique for both microalgal products extraction and cell inactivation.
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Affiliation(s)
- Yuan Bai
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Zheng-Yang Huo
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Yin-Hu Wu
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China.
| | - Hong-Ying Hu
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, PR China; Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, PR China.
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22
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Pulsed electric field permeabilization and extraction of phycoerythrin from Porphyridium cruentum. ALGAL RES 2019. [DOI: 10.1016/j.algal.2018.11.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Silve A, Kian CB, Papachristou I, Kubisch C, Nazarova N, Wüstner R, Leber K, Strässner R, Frey W. Incubation time after pulsed electric field treatment of microalgae enhances the efficiency of extraction processes and enables the reduction of specific treatment energy. BIORESOURCE TECHNOLOGY 2018; 269:179-187. [PMID: 30172181 DOI: 10.1016/j.biortech.2018.08.060] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 06/08/2023]
Abstract
Pulsed Electric Field (PEF) pre-treatment, applied on fresh microalgae Auxenochlorella protothecoides, induces spontaneous release of a substantial water fraction and enables subsequent lipid extraction using ethanol-hexane blends. In this study, fresh microalgae suspensions were treated with PEF and incubated under inert conditions. Incubation promotes the release of ions and carbohydrates and increases the yields of subsequent lipid extraction thus enabling a considerable reduction of PEF-treatment energy. With a 20 h incubation period at 25 °C, almost total lipid extraction is achieved with a specific PEF-treatment energy of only 0.25 MJ/kgDW. Incubation on ice remains beneficial but less efficient than at 25 °C. Additionally, incubating microalgae cells in suspension at 100gDW/L or in a dense paste, was almost equally efficient. Correlation between the different results suggests that spontaneous release of ions and carbohydrates facilitates more successful lipid extraction. A direct causality between the two phenomena remains to be demonstrated.
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Affiliation(s)
- Aude Silve
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany.
| | - Chua Boon Kian
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany
| | - Ioannis Papachristou
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany
| | - Christin Kubisch
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany
| | - Natalja Nazarova
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany
| | - Rüdiger Wüstner
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany
| | - Klaus Leber
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany
| | - Ralf Strässner
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany
| | - Wolfgang Frey
- Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology (IHM), Eggenstein-Leopoldshafen, Germany
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24
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Amaro HM, Guedes AC, Preto MAC, Sousa-Pinto I, Malcata FX. Gloeothece sp. as a Nutraceutical Source-An Improved Method of Extraction of Carotenoids and Fatty Acids. Mar Drugs 2018; 16:md16090327. [PMID: 30208611 PMCID: PMC6163995 DOI: 10.3390/md16090327] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/06/2018] [Accepted: 09/08/2018] [Indexed: 11/16/2022] Open
Abstract
The nutraceutical potential of microalgae boomed with the exploitation of new species and sustainable extraction systems of bioactive compounds. Thus, a laboratory-made continuous pressurized solvent extraction system (CPSE) was built to optimize the extraction of antioxidant compounds, such as carotenoids and PUFA, from a scarcely studied prokaryotic microalga, Gloeothece sp. Following "green chemical principles" and using a GRAS solvent (ethanol), biomass amount, solvent flow-rate/pressure, temperature and solvent volume-including solvent recirculation-were sequentially optimized, with the carotenoids and PUFA content and antioxidant capacity being the objective functions. Gloeothece sp. bioactive compounds were best extracted at 60 °C and 180 bar. Recirculation of solvent in several cycles (C) led to an 11-fold extraction increase of β-carotene (3C) and 7.4-fold extraction of C18:2 n6 t (5C) when compared to operation in open systems. To fully validate results CPSE, this system was compared to a conventional extraction method, ultrasound assisted extraction (UAE). CPSE proved superior in extraction yield, increasing total carotenoids extraction up 3-fold and total PUFA extraction by ca. 1.5-fold, with particular extraction increase of 18:3 n3 by 9.6-fold. Thus, CPSE proved to be an efficient and greener extraction method to obtain bioactive extract from Gloeothece sp. for nutraceutical purposes-with low levels of resources spent, while lowering costs of production and environmental impacts.
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Affiliation(s)
- Helena M Amaro
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, P-4450-208 Matosinhos, Portugal.
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira no. 228, P-4050-313 Porto, Portugal.
| | - A Catarina Guedes
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, P-4450-208 Matosinhos, Portugal.
| | - Marco A C Preto
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, P-4450-208 Matosinhos, Portugal.
| | - I Sousa-Pinto
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, P-4450-208 Matosinhos, Portugal.
- FCUP-Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal.
| | - F Xavier Malcata
- LEPABE-Laboratory of Process Engineering, Environment, Biotechnology and Energy, Rua Dr. Roberto Frias s/n, P-4200-465 Porto, Portugal.
- Department of Chemical Engineering, University of Porto, Rua Dr. Roberto Frias, s/n 4200-465 Porto, Portugal.
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25
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Carullo D, Abera BD, Casazza AA, Donsì F, Perego P, Ferrari G, Pataro G. Effect of pulsed electric fields and high pressure homogenization on the aqueous extraction of intracellular compounds from the microalgae Chlorella vulgaris. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.01.017] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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26
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Batista Napotnik T, Miklavčič D. In vitro electroporation detection methods – An overview. Bioelectrochemistry 2018; 120:166-182. [DOI: 10.1016/j.bioelechem.2017.12.005] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 12/11/2017] [Accepted: 12/11/2017] [Indexed: 12/22/2022]
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27
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Saini RK, Keum YS. Carotenoid extraction methods: A review of recent developments. Food Chem 2018; 240:90-103. [DOI: 10.1016/j.foodchem.2017.07.099] [Citation(s) in RCA: 372] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 06/27/2017] [Accepted: 07/19/2017] [Indexed: 11/15/2022]
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28
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Bleakley S, Hayes M. Algal Proteins: Extraction, Application, and Challenges Concerning Production. Foods 2017; 6:E33. [PMID: 28445408 PMCID: PMC5447909 DOI: 10.3390/foods6050033] [Citation(s) in RCA: 327] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 04/10/2017] [Accepted: 04/20/2017] [Indexed: 01/03/2023] Open
Abstract
Population growth combined with increasingly limited resources of arable land and fresh water has resulted in a need for alternative protein sources. Macroalgae (seaweed) and microalgae are examples of under-exploited "crops". Algae do not compete with traditional food crops for space and resources. This review details the characteristics of commonly consumed algae, as well as their potential for use as a protein source based on their protein quality, amino acid composition, and digestibility. Protein extraction methods applied to algae to date, including enzymatic hydrolysis, physical processes, and chemical extraction and novel methods such as ultrasound-assisted extraction, pulsed electric field, and microwave-assisted extraction are discussed. Moreover, existing protein enrichment methods used in the dairy industry and the potential of these methods to generate high value ingredients from algae, such as bioactive peptides and functional ingredients are discussed. Applications of algae in human nutrition, animal feed, and aquaculture are examined.
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Affiliation(s)
- Stephen Bleakley
- Food Biosciences Department, Teagasc Ashtown Food Research Centre, Ashtown, Dublin D15 KN3K, Ireland.
- School of Biological Sciences, College of Sciences and Health and Environment, Sustainability and Health Institute, Dublin Institute of Technology, Kevin Street, Dublin D08 NF82, Ireland.
| | - Maria Hayes
- Food Biosciences Department, Teagasc Ashtown Food Research Centre, Ashtown, Dublin D15 KN3K, Ireland.
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29
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Kumar AK, Sharma S. Recent updates on different methods of pretreatment of lignocellulosic feedstocks: a review. BIORESOUR BIOPROCESS 2017; 4:7. [PMID: 28163994 PMCID: PMC5241333 DOI: 10.1186/s40643-017-0137-9] [Citation(s) in RCA: 338] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 01/10/2017] [Indexed: 11/22/2022] Open
Abstract
Lignocellulosic feedstock materials are the most abundant renewable bioresource material available on earth. It is primarily composed of cellulose, hemicellulose, and lignin, which are strongly associated with each other. Pretreatment processes are mainly involved in effective separation of these complex interlinked fractions and increase the accessibility of each individual component, thereby becoming an essential step in a broad range of applications particularly for biomass valorization. However, a major hurdle is the removal of sturdy and rugged lignin component which is highly resistant to solubilization and is also a major inhibitor for hydrolysis of cellulose and hemicellulose. Moreover, other factors such as lignin content, crystalline, and rigid nature of cellulose, production of post-pretreatment inhibitory products and size of feed stock particle limit the digestibility of lignocellulosic biomass. This has led to extensive research in the development of various pretreatment processes. The major pretreatment methods include physical, chemical, and biological approaches. The selection of pretreatment process depends exclusively on the application. As compared to the conventional single pretreatment process, integrated processes combining two or more pretreatment techniques is beneficial in reducing the number of process operational steps besides minimizing the production of undesirable inhibitors. However, an extensive research is still required for the development of new and more efficient pretreatment processes for lignocellulosic feedstocks yielding promising results.
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Affiliation(s)
- Adepu Kiran Kumar
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Anand, 388 120 Gujarat India
| | - Shaishav Sharma
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Anand, 388 120 Gujarat India
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30
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Poojary MM, Barba FJ, Aliakbarian B, Donsì F, Pataro G, Dias DA, Juliano P. Innovative Alternative Technologies to Extract Carotenoids from Microalgae and Seaweeds. Mar Drugs 2016; 14:md14110214. [PMID: 27879659 PMCID: PMC5128757 DOI: 10.3390/md14110214] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/07/2016] [Accepted: 11/11/2016] [Indexed: 11/16/2022] Open
Abstract
Marine microalgae and seaweeds (microalgae) represent a sustainable source of various bioactive natural carotenoids, including β-carotene, lutein, astaxanthin, zeaxanthin, violaxanthin and fucoxanthin. Recently, the large-scale production of carotenoids from algal sources has gained significant interest with respect to commercial and industrial applications for health, nutrition, and cosmetic applications. Although conventional processing technologies, based on solvent extraction, offer a simple approach to isolating carotenoids, they suffer several, inherent limitations, including low efficiency (extraction yield), selectivity (purity), high solvent consumption, and long treatment times, which have led to advancements in the search for innovative extraction technologies. This comprehensive review summarizes the recent trends in the extraction of carotenoids from microalgae and seaweeds through the assistance of different innovative techniques, such as pulsed electric fields, liquid pressurization, supercritical fluids, subcritical fluids, microwaves, ultrasounds, and high-pressure homogenization. In particular, the review critically analyzes technologies, characteristics, advantages, and shortcomings of the different innovative processes, highlighting the differences in terms of yield, selectivity, and economic and environmental sustainability.
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Affiliation(s)
- Mahesha M Poojary
- Discipline of Laboratory Medicine, School of Health and Biomedical Sciences, RMIT University, 3083 Bundoora, Australia.
- Chemistry Section, School of Science and Technology, University of Camerino, via S. Agostino 1, 62032 Camerino, Italy.
| | - Francisco J Barba
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Avda. Vicent Andrés Estellés, s/n, 46100 Burjassot, València, Spain.
| | - Bahar Aliakbarian
- Department of Civil, Chemical and Environmental Engineering, Pole of Chemical Engineering, University of Genoa, via Opera Pia 15, 16145 Genoa, Italy.
| | - Francesco Donsì
- Department of Industrial Engineering, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Italy.
- ProdAl Scarl, via Ponte don Melillo, 84084 Fisciano, SA, Italy.
| | - Gianpiero Pataro
- Department of Industrial Engineering, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Italy.
- ProdAl Scarl, via Ponte don Melillo, 84084 Fisciano, SA, Italy.
| | - Daniel A Dias
- Discipline of Laboratory Medicine, School of Health and Biomedical Sciences, RMIT University, 3083 Bundoora, Australia.
| | - Pablo Juliano
- CSIRO Agriculture and Food, 671 Sneydes Road, 3030 Werribee, VIC, Australia.
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Straessner R, Silve A, Eing C, Rocke S, Wuestner R, Leber K, Mueller G, Frey W. Microalgae precipitation in treatment chambers during pulsed electric field (PEF) processing. INNOV FOOD SCI EMERG 2016. [DOI: 10.1016/j.ifset.2016.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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