1
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Cai R, Xiao Y, Xing J, Yu K, Li X, Chai Y. Establishment of a genetic transformation system for cordycipitoid fungus Cordyceps chanhua. Front Microbiol 2024; 15:1333793. [PMID: 38993492 PMCID: PMC11236535 DOI: 10.3389/fmicb.2024.1333793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 05/01/2024] [Indexed: 07/13/2024] Open
Abstract
Cordyceps chanhua is a well-known edible and medicinal mushroom with a long history of use in China, and it contains a variety of secondary metabolites with interesting bioactive ingredients. However, recent researches have mainly focused on cultivation conditions, secondary metabolite compositions and pharmacological activities of C. chanhua, the lack of an efficient and stable genetic transformation system has largely limited further research on the relationship between secondary metabolites and biosynthetic gene clusters in C. chanhua. In this study, single-factor experiments were used to compare the effects of different osmotic stabilizers, enzyme concentrations and enzyme digestion times on protoplast yield, and we found that the highest yield of 5.53 × 108 protoplasts/mL was obtained with 0.7 M mannitol, 6 mg/mL snail enzyme and 4 h of enzyme digestion time, and the regeneration rate of protoplasts was up to approximately 30% using 0.7 M mannitol as an osmotic stabilizer. On this basis, a PEG-mediated genetic transformation system of C. chanhua was successfully established for the first time, which lays the foundation for further genetic transformation of C. chanhua.
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Affiliation(s)
- Ruihang Cai
- Zhejiang Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Yu Xiao
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Jiajia Xing
- College of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou, China
| | - Kongjian Yu
- Zhejiang Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Xiaola Li
- Zhejiang Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Yiqiu Chai
- Zhejiang Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
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2
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Mat Husin MA, Mohd Yasin NH, Takriff MS, Jamar NH. A review on pretreatment methods for lipid extraction from microalgae biomass. Prep Biochem Biotechnol 2024; 54:159-174. [PMID: 37220018 DOI: 10.1080/10826068.2023.2214923] [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: 05/25/2023]
Abstract
Microalgal lipids are promising and sustainable sources for the production of third-generation biofuels, foods, and medicines. A high lipid yield during the extraction process in microalgae could be influenced by the suitable pretreatment and lipid extraction methods. The extraction method itself could be attributed to the economic and environmental impacts on the industry. This review summarizes the pretreatment methods including mechanical and non-mechanical techniques for cell lysis strategy before lipid extraction in microalgae biomass. The multiple strategies to achieve high lipid yields via cell disruption techniques are discussed. These strategies include mechanical (shear forces, pulse electric forces, waves, and temperature shock) and non-mechanical (chemicals, osmotic pressure, and biological) methods. At present, two techniques of the pretreatment method can be combined to increase lipid extraction from microalgae. Therefore, the extraction strategy for a large-scale application could be further strengthened to optimize lipid recovery by microalgae.
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Affiliation(s)
- Muhammad Azreen Mat Husin
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Nazlina Haiza Mohd Yasin
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Mohd Sobri Takriff
- Chemical & Water Desalination Program, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environmnent, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Nur Hidayah Jamar
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
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3
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Mavrommatis A, Tsiplakou E, Zerva A, Pantiora PD, Georgakis ND, Tsintzou GP, Madesis P, Labrou NE. Microalgae as a Sustainable Source of Antioxidants in Animal Nutrition, Health and Livestock Development. Antioxidants (Basel) 2023; 12:1882. [PMID: 37891962 PMCID: PMC10604252 DOI: 10.3390/antiox12101882] [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: 09/18/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Microalgae are a renewable and sustainable source of bioactive compounds, such as essential amino acids, polyunsaturated fatty acids, and antioxidant compounds, that have been documented to have beneficial effects on nutrition and health. Among these natural products, the demand for natural antioxidants, as an alternative to synthetic antioxidants, has increased. The antioxidant activity of microalgae significantly varies between species and depends on growth conditions. In the last decade, microalgae have been explored in livestock animals as feed additives with the aim of improving both animals' health and performance as well as product quality and the environmental impact of livestock. These findings are highly dependent on the composition of microalgae strain and their amount in the diet. The use of carbohydrate-active enzymes can increase nutrient bioavailability as a consequence of recalcitrant microalgae cell wall degradation, making it a promising strategy for monogastric nutrition for improving livestock productivity. The use of microalgae as an alternative to conventional feedstuffs is becoming increasingly important due to food-feed competition, land degradation, water deprivation, and climate change. However, the cost-effective production and use of microalgae is a major challenge in the near future, and their cultivation technology should be improved by reducing production costs, thus increasing profitability.
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Affiliation(s)
- Alexandros Mavrommatis
- Laboratory of Nutritional Physiology and Feeding, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 75 Iera Odos Str., GR-11855 Athens, Greece
| | - Eleni Tsiplakou
- Laboratory of Nutritional Physiology and Feeding, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 75 Iera Odos Str., GR-11855 Athens, Greece
| | - Anastasia Zerva
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos Str., GR-11855 Athens, Greece
| | - Panagiota D Pantiora
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos Str., GR-11855 Athens, Greece
| | - Nikolaos D Georgakis
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos Str., GR-11855 Athens, Greece
| | - Georgia P Tsintzou
- Laboratory of Molecular Biology of Plants, School of Agricultural Sciences, University of Thessaly, GR-38221 Volos, Greece
| | - Panagiotis Madesis
- Laboratory of Molecular Biology of Plants, School of Agricultural Sciences, University of Thessaly, GR-38221 Volos, Greece
- Institute of Applied Biosciences, CERTH, 6th km Charilaou-Thermis Road, P.O. Box 361, Thermi, GR-57001 Thessaloniki, Greece
| | - Nikolaos E Labrou
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos Str., GR-11855 Athens, Greece
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4
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Rollin S, Gupta A, Franco CMM, Singh S, Puri M. Development of sustainable downstream processing for nutritional oil production. Front Bioeng Biotechnol 2023; 11:1227889. [PMID: 37885455 PMCID: PMC10598382 DOI: 10.3389/fbioe.2023.1227889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023] Open
Abstract
Nutritional oils (mainly omega-3 fatty acids) are receiving increased attention as critical supplementary compounds for the improvement and maintenance of human health and wellbeing. However, the predominant sources of these oils have historically shown numerous limitations relating to desirability and sustainability; hence the crucial focus is now on developing smarter, greener, and more environmentally favourable alternatives. This study was undertaken to consider and assess the numerous prevailing and emerging techniques implicated across the stages of fatty acid downstream processing. A structured and critical comparison of the major classes of disruption methodology (physical, chemical, thermal, and biological) is presented, with discussion and consideration of the viability of new extraction techniques. Owing to a greater desire for sustainable industrial practices, and a desperate need to make nutritional oils more available; great emphasis has been placed on the discovery and adoption of highly sought-after 'green' alternatives, which demonstrate improved efficiency and reduced toxicity compared to conventional practices. Based on these findings, this review also advocates new forays into application of novel nanomaterials in fatty acid separation to improve the sustainability of nutritional oil downstream processing. In summary, this review provides a detailed overview of the current and developing landscape of nutritional oil; and concludes that adoption and refinement of these sustainable alternatives could promptly allow for development of a more complete 'green' process for nutritional oil extraction; allowing us to better meet worldwide needs without costing the environment.
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Affiliation(s)
- Samuel Rollin
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Adarsha Gupta
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Christopher M. M. Franco
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | | | - Munish Puri
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
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5
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Huang PW, Yan CX, Sun XM, Huang H. Economical downstream processing of microbial polyunsaturated fatty acids. Trends Biotechnol 2023; 41:857-859. [PMID: 36709095 DOI: 10.1016/j.tibtech.2023.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/18/2022] [Accepted: 01/04/2023] [Indexed: 01/27/2023]
Abstract
Polyunsaturated fatty acids (PUFAs) are important nutrients for humans and animals. Microorganisms, such as yeast, filamentous fungi, and microalgae, have successfully been modified to produce PUFAs. Apart from strain improvement and fermentation optimization, efficient and cost-effective downstream processing will determine whether production can advance from the laboratory to the factory.
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Affiliation(s)
- Peng-Wei Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Chun-Xiao Yan
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Xiao-Man Sun
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China.
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China; College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China.
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6
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Brückner K, Griehl C. Permeabilization of the cell wall of Chlorella sorokiniana by the chitosan-degrading protease papain. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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7
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Jothibasu K, Muniraj I, Jayakumar T, Ray B, Dhar D, Karthikeyan S, Rakesh S. Impact of microalgal cell wall biology on downstream processing and nutrient removal for fuels and value-added products. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Mass transfer characteristics and effect of flue gas used in microalgae culture. Appl Microbiol Biotechnol 2022; 106:7013-7025. [PMID: 36173453 DOI: 10.1007/s00253-022-12206-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/08/2022] [Accepted: 09/22/2022] [Indexed: 11/02/2022]
Abstract
Flue gas not only contains carbon dioxide (CO2) but also air pollutants (sulfur oxides (SOx) and nitrogen oxides (NOx)). The effective utilization of flue gas could help us to reduce the cost of microalgal biomass production. This study assessed and explored the utilization of flue gas for the absorption characteristics of different components and their biological effect in microalgal culture systems. In abiotic absorption experiments, the absorptivity of CO2 was reduced by a maximum of 3.1%, and the concentration of the available carbon source in the culture medium was decreased by 6.7% when sulfur dioxide (SO2, at 100 mg/m3) was presented in the flue gas. Meanwhile, the presence of oxygen (O2, at 4%) in the flue gas improved the absorptivity of nitric oxide (NO). When Scenedesmus dimorphus was cultured using bisulfites and nitrites (at 10 mmol/L and 8 mmol/L, respectively) as the sulfur and nitrogen sources, SOx and NOx in the flue gas did not significantly affect growth of microalgal cells and the carbohydrate, lipid, and protein content. The consumption rates of nutrient elements were calculated, which could provide an adjustment strategy for the initial gas source when culturing microalgae with the flue gas. This study indicates that the flue gas used for microalgal culture should be partially desulfurized, so that the SOx and CO2 concentrations can optimize growth of microalgal cells, while the denitrification might not be needed since the flue gas can be oxidized to utilize the NO. KEY POINTS: • The concentration of the available carbon source in the culture medium was decreased when SO2 was presented in the flue gas, and the presence of O2 in the flue gas improved the absorptivity of NO. • An adjustment strategy for the initial gas source when culturing microalgae with the flue gas was firstly proposed. • For flue gas containing 10% CO2 and 60 mg/m3 of SO2, growth of Scenedesmus dimorphus showed no difference in cell growth in normal culture conditions.
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9
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Sun Z, Sun L, Liu Y. The potential impact of replacing nitrate with ammonium hydroxide in microalgae production on the biomass productivity and CO2 utilization efficiency. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Partial enzymatic cell wall disruption of Oocystis sp. for simultaneous cultivation and extraction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Torres-Alvarez D, León-Buitimea A, Albalate-Ramírez A, Rivas-García P, Hernández-Núñez E, Morones-Ramírez JR. Conversion of banana peel into diverse valuable metabolites using an autochthonous Rhodotorula mucilaginosa strain. Microb Cell Fact 2022; 21:96. [PMID: 35643468 PMCID: PMC9148461 DOI: 10.1186/s12934-022-01834-0] [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: 03/02/2022] [Accepted: 05/18/2022] [Indexed: 11/10/2022] Open
Abstract
Low-cost substrates are an exciting alternative for bioprocesses; however, their complexity can affect microorganism metabolism with non-desirable outcomes. This work evaluated banana peel extract (BPE) as a growth medium compared to commercial Yeast-Malt (YM) broth in the native and non-conventional yeast Rhodotorula mucilaginosa UANL-001L. The production of carotenoids, fatty acids, and exopolysaccharides (EPS) was also analyzed. Biomass concentration (3.9 g/L) and growth rate (0.069 g/h) of Rhodotorula mucilaginosa UANL-001L were obtained at 200 g/L of BPE. Yields per gram of dry biomass for carotenoids (317 µg/g) and fatty acids (0.55 g/g) showed the best results in 150 g/L of BPE, while 298 µg/g and 0.46 mg/g, respectively, were obtained in the YM broth. The highest yield of EPS was observed in 50 g/L of BPE, a two-fold increase (160.1 mg/g) compared to the YM broth (76.3 mg/g). The fatty acid characterization showed that 100 g/L of BPE produced 400% more unsaturated compounds (e.g., oleic and ricinoleic acid) than the YM broth. Altogether, these results indicate that BPE is a suitable medium for producing high-value products with potential industrial applications.
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12
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Rahman MM, Hosano N, Hosano H. Recovering Microalgal Bioresources: A Review of Cell Disruption Methods and Extraction Technologies. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092786. [PMID: 35566139 PMCID: PMC9104913 DOI: 10.3390/molecules27092786] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 01/27/2023]
Abstract
Microalgae have evolved into a promising sustainable source of a wide range of compounds, including protein, carbohydrates, biomass, vitamins, animal feed, and cosmetic products. The process of extraction of intracellular composites in the microalgae industry is largely determined by the microalgal species, cultivation methods, cell wall disruption techniques, and extraction strategies. Various techniques have been applied to disrupt the cell wall and recover the intracellular molecules from microalgae, including non-mechanical, mechanical, and combined methods. A comprehensive understanding of the cell disruption processes in each method is essential to improve the efficiency of current technologies and further development of new methods in this field. In this review, an overview of microalgal cell disruption techniques and an analysis of their performance and challenges are provided. A number of studies on cell disruption and microalgae extraction are examined in order to highlight the key challenges facing the field of microalgae and their future prospects. In addition, the amount of product recovery for each species of microalgae and the important parameters for each technique are discussed. Finally, pulsed electric field (PEF)-assisted treatments, which are becoming an attractive option due to their simplicity and effectiveness in extracting microalgae compounds, are discussed in detail.
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Affiliation(s)
- Md. Mijanur Rahman
- Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan;
| | - Nushin Hosano
- Department of Biomaterials and Bioelectrics, Institute of Industrial Nanomaterials, Kumamoto University, Kumamoto 860-8555, Japan;
| | - Hamid Hosano
- Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan;
- Department of Biomaterials and Bioelectrics, Institute of Industrial Nanomaterials, Kumamoto University, Kumamoto 860-8555, Japan;
- Correspondence:
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13
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Hac İsa M, Metin C, Ercan E, Alparslan Y. Effect of different cell disruption methods on lipid yield of
Schizochytrium
sp. J AM OIL CHEM SOC 2022. [DOI: 10.1002/aocs.12551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mustafa Hac İsa
- Faculty of Fisheries Muğla Sıtkı Koçman University Kötekli Muğla Turkey
| | - Cansu Metin
- Faculty of Fisheries Muğla Sıtkı Koçman University Kötekli Muğla Turkey
| | - Ertan Ercan
- Faculty of Fisheries Muğla Sıtkı Koçman University Kötekli Muğla Turkey
| | - Yunus Alparslan
- Faculty of Fisheries Muğla Sıtkı Koçman University Kötekli Muğla Turkey
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14
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Zhang Y, Kang X, Zhen F, Wang Z, Kong X, Sun Y. Assessment of enzyme addition strategies on the enhancement of lipid yield from microalgae. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108198] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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Yukesh Kannah R, Kavitha S, Parthiba Karthikeyan O, Rene ER, Kumar G, Rajesh Banu J. A review on anaerobic digestion of energy and cost effective microalgae pretreatment for biogas production. BIORESOURCE TECHNOLOGY 2021; 332:125055. [PMID: 33813179 DOI: 10.1016/j.biortech.2021.125055] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 06/12/2023]
Abstract
Microalgae is considered as a renewable and sustainable biomass to produce bioenergy and other high-value products. Besides, the cultivation of microalgae does not need any fertile land and it provides opportunities for climate change mitigation by sequestering atmospheric carbon-dioxide (CO2), facilitating nutrient recovery from wastewater and regulating industrial pollutions/emissions. Algal biomass harvested from different technologies are unique in their physio-chemical properties that require critical understanding prior to value-addition or bioenergy recovery. In this review, we elaborate the importance of cell wall weakening followed by pretreatment as a key process step and strategy to reduce the energy cost of converting algal biomass into bioenergy. From the energy-calculations, it was measured that the cell wall weakening significantly improves the net-energy ratio from 0.68 to 1.02. This approach could be integrated with any pre-treatment options, while it reduces the time of pre-treatment and costs of energy/chemicals required for hydrolysis of algal biomass.
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Affiliation(s)
- R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus Tirunelveli, Tamil Nadu, India
| | - S Kavitha
- Department of Civil Engineering, Anna University Regional Campus Tirunelveli, Tamil Nadu, India
| | | | - Eldon R Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2601DA Delft, The Netherlands
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - J Rajesh Banu
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu, India.
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Enhancing CO 2 utilization by a physical absorption-based technique in microalgae culture. Bioprocess Biosyst Eng 2021; 44:1901-1912. [PMID: 33864126 DOI: 10.1007/s00449-021-02570-2] [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: 01/22/2021] [Accepted: 04/08/2021] [Indexed: 10/21/2022]
Abstract
Carbon dioxide supplementation is significant for cell growth in autotrophic cultures of microalgae. However, the CO2 utilization efficiency is quite low in most processes. Aimed at this problem, six kinds of physical absorption enhancers were investigated to enhance the biological carbon sequestration of microalgae. By the addition of a small amount of CO2 absorption enhancer, the total inorganic carbon concentration of the medium was significantly increased. In addition, the biomass productivity of Scenedesmus dimorphus was maximally increased by 63% by the addition of propylene carbonate in flask cultures. In cultures using an air-lift photobioreactor equipped with a pH-feedback control system to supply CO2, the CO2 consumption was maximally reduced by 71% with added polyethylene glycol dimethyl ether. This study indicates that the incorporation of physical absorption enhancers could be a promising approach to overcome the problems of low CO2 utilization efficiency and high carbon source cost in algal biomass production.
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Pôjo V, Tavares T, Malcata FX. Processing Methodologies of Wet Microalga Biomass Toward Oil Separation: An Overview. Molecules 2021; 26:641. [PMID: 33530628 PMCID: PMC7866146 DOI: 10.3390/molecules26030641] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/12/2021] [Accepted: 01/21/2021] [Indexed: 11/16/2022] Open
Abstract
One of the main goals of Mankind is to ensure food system sustainability-including management of land, soil, water, and biodiversity. Microalgae accordingly appear as an innovative and scalable alternative source in view of the richness of their chemical profiles. In what concerns lipids in particular, microalgae can synthesize and accumulate significant amounts of fatty acids, a great fraction of which are polyunsaturated; this makes them excellent candidates within the framework of production and exploitation of lipids by various industrial and health sectors, either as bulk products or fine chemicals. Conventional lipid extraction methodologies require previous dehydration of microalgal biomass, which hampers economic feasibility due to the high energy demands thereof. Therefore, extraction of lipids directly from wet biomass would be a plus in this endeavor. Supporting processes and methodologies are still limited, and most approaches are empirical in nature-so a deeper mechanistic elucidation is a must, in order to facilitate rational optimization of the extraction processes. Besides circumventing the current high energy demands by dehydration, an ideal extraction method should be selective, sustainable, efficient, harmless, and feasible for upscale to industrial level. This review presents and discusses several pretreatments incurred in lipid extraction from wet microalga biomass, namely recent developments and integrated processes. Unfortunately, most such developments have been proven at bench-scale only-so demonstration in large facilities is still needed to confirm whether they can turn into competitive alternatives.
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Affiliation(s)
- Vânia Pôjo
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (V.P.); (F.X.M.)
| | - Tânia Tavares
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (V.P.); (F.X.M.)
| | - Francisco Xavier Malcata
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (V.P.); (F.X.M.)
- FEUP—Faculty of Engineering, University of Porto, Rua Dr Roberto Frias, 4200-264 Porto, Portugal
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18
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Marsol-Vall A, Aitta E, Guo Z, Yang B. Green technologies for production of oils rich in n-3 polyunsaturated fatty acids from aquatic sources. Crit Rev Food Sci Nutr 2021; 62:2942-2962. [PMID: 33480261 DOI: 10.1080/10408398.2020.1861426] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Fish and algae are the major sources of n-3 polyunsaturated fatty acids (n-3 PUFAs). Globally, there is a rapid increase in demand for n-3 PUFA-rich oils. Conventional oil production processes use high temperature and chemicals, compromising the oil quality and the environment. Hence, alternative green technologies have been investigated for producing oils from aquatic sources. While most of the studies have focused on the oil extraction and enrichment of n-3 PUFAs, less effort has been directed toward green refining of oils from fish and algae. Enzymatic processing and ultrasound-assisted extraction with environment-friendly solvents are the most promising green technologies for extracting fish oil, whereas pressurized extractions are suitable for extracting microalgae oil. Lipase-catalysed ethanolysis of fish and algae oil is a promising green technology for enriching n-3 PUFAs. Green refining technologies such as phospholipase- and membrane-assisted degumming deserve investigation for application in fish and algal oils. In the current review, we critically examined the currently existing research on technologies applied at each of the steps involved in the production of oils rich in n-3 PUFAs from fish and algae species. Special attention was placed on assessment of green technologies in comparison with conventional processing methods.
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Affiliation(s)
- Alexis Marsol-Vall
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, Turku, Finland
| | - Ella Aitta
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, Turku, Finland
| | - Zheng Guo
- Biological and Chemical Engineering, Department of Engineering, Aarhus University, Aarhus, Denmark
| | - Baoru Yang
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, Turku, Finland
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Abstract
Several microalgae species have been exploited due to their great biotechnological potential for the production of a range of biomolecules that can be applied in a large variety of industrial sectors. However, the major challenge of biotechnological processes is to make them economically viable, through the production of commercially valuable compounds. Most of these compounds are accumulated inside the cells, requiring efficient technologies for their extraction, recovery and purification. Recent improvements approaching physicochemical treatments (e.g., supercritical fluid extraction, ultrasound-assisted extraction, pulsed electric fields, among others) and processes without solvents are seeking to establish sustainable and scalable technologies to obtain target products from microalgae with high efficiency and purity. This article reviews the currently available approaches reported in literature, highlighting some examples covering recent granted patents for the microalgae’s components extraction, recovery and purification, at small and large scales, in accordance with the worldwide trend of transition to bio-based products.
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Brennan B, Regan F. In-situ lipid and fatty acid extraction methods to recover viable products from Nannochloropsis sp. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:142464. [PMID: 33113682 DOI: 10.1016/j.scitotenv.2020.142464] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/07/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Nannochloropsis sp. has received increased attention by researchers in recent years due to its complexity and abundance of lipid structures. The lipids of this microalgae species have been identified to contain large quantities of neutral lipids which are capable of producing raw materials for nutraceuticals, food additives and biofuels. The production of biodiesel has received the greatest attention as there is an increase in global demand for both more fuel and more environmentally sustainable methods to produce such resources. The greatest challenges facing industries to mass produce viable products from microalgae involve the degradation of the cell wall and extracting the fatty acid of interest due to high costs. Various studies have shown that the extraction lipids from the microalgae can greatly influence the overall fatty acid composition. Different extraction methods can result in recovering higher quantities of either saturated fatty acids, monounsaturated fatty acids or polyunsaturated fatty acids. Biodiesel production requires higher quantities of saturated fatty acids and monosaturated fatty acids as increased quantities of polyunsaturated fatty acids result in oxidation which decreases the performance of the biodiesel. Whereas, polyunsaturated fatty acids are required in order to produce pharmaceuticals and food additives such as omega 3. This review will focus on how different in-situ extraction methods for lipid and fatty acid recovery, influence the fatty acid composition of various Nannochloropsis species (oculate, gaditana, salina and oceanica). The mechanical methods (microwave, ultrasonic and supercritical‑carbon dioxide) of extraction for Nannochloropsis sp. will be critically evaluated. The use of enzymes will also be addressed, for their ability to extract fatty acids in a more environmentally friendly manner. This paper will report on the viable by-products which can be produced using different extraction methods.
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Affiliation(s)
- Brian Brennan
- DCU Water Institute, School of Chemical Science, Dublin City University, Ireland
| | - Fiona Regan
- DCU Water Institute, School of Chemical Science, Dublin City University, Ireland.
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21
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Pereira AG, Jimenez-Lopez C, Fraga M, Lourenço-Lopes C, García-Oliveira P, Lorenzo JM, Perez-Lamela C, Prieto MA, Simal-Gandara J. Extraction, Properties, and Applications of Bioactive Compounds Obtained from Microalgae. Curr Pharm Des 2020; 26:1929-1950. [PMID: 32242779 DOI: 10.2174/1381612826666200403172206] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 02/25/2020] [Indexed: 01/08/2023]
Abstract
With the increase in the global population, getting new sources of food is essential. One of the solutions can be found in the oceans due to algae. Microalgae are aquatic photosynthetic organisms used mainly due to their variety of bioactive compounds. The consumption of microalgae has been carried out for centuries and is recommended by organizations, such as OMS and FAO, due to its nutritional value and its properties. Based on the existing literature, there is substantial evidence of the nutritional quality of the algae as well as their functional elements. However, much quantification is still necessary, as well as studying possible adverse effects. The present review describes the compounds of alimentary interest present in these algae as well as different extraction techniques assisted by different energetic mechanisms (such as heat, supercritical-fluid, microwave, ultrasound, enzymes, electric field, high hydrostatic pressure, among others). The most challenging and crucial issues are reducing microalgae growth cost and optimizing extraction techniques. This review aimed a better understanding of the uses of microalgae for new researches in nutrition. Since the use of microalgae is still a field in which there is much to discover, it is likely that more benefits will be found in its consumption.
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Affiliation(s)
- Antia G Pereira
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain.,Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Cecilia Jimenez-Lopez
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain.,Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Maria Fraga
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain.,Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Catarina Lourenço-Lopes
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain.,Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Paula García-Oliveira
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain
| | - Jose M Lorenzo
- Centro Tecnológico de la Carne de Galicia, Rúa Galicia No. 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain
| | - Concepcion Perez-Lamela
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain
| | - Miguel A Prieto
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain
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Alavijeh RS, Karimi K, Wijffels RH, van den Berg C, Eppink M. Combined bead milling and enzymatic hydrolysis for efficient fractionation of lipids, proteins, and carbohydrates of Chlorella vulgaris microalgae. BIORESOURCE TECHNOLOGY 2020; 309:123321. [PMID: 32305840 DOI: 10.1016/j.biortech.2020.123321] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
A combined bead milling and enzymatic hydrolysis process was developed for fractionation of the major valuable biomass components, i.e., proteins, carbohydrates, and lipids from the microalgae Chlorella vulgaris. The cells were treated by bead milling followed by hydrolysis with different hydrolytic enzymes, including lipase, phospholipase, protease, and cellulase. Without enzymatic hydrolysis, the recovery yield of lipids, carbohydrates, and proteins for bead milled biomass was 75%, 31%, and 40%, respectively, while by applying enzymatic treatments these results were improved significantly. The maximum recovery yield for all components was obtained after enzymatic hydrolysis of bead milled biomass by lipase at 37 °C and pH 7.4 for 24 h, yielding 88% lipids in the solid phase while 74% carbohydrate and 68% protein were separated in the liquid phase. The recovery yield of components after enzymatic hydrolysis of biomass without bead milling was 44% lower than that of the milled biomass.
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Affiliation(s)
- Razieh Shafiei Alavijeh
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Bioprocess Engineering, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Rene H Wijffels
- Bioprocess Engineering, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands; Faculty of Biosciences and Aquaculture, Nord University, Kongens gate 42, 8049 Bodø, Norway
| | - Corjan van den Berg
- Bioprocess Engineering, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands
| | - Michel Eppink
- Bioprocess Engineering, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands.
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23
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Verdasco-Martín CM, Díaz-Lozano A, Otero C. Advantageous enzyme selective extraction process of essential spirulina oil. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.02.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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24
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Trivedi J, Atray N, Agrawal D. Evaluating Cell Disruption Strategies for Aqueous Lipid Extraction from Oleaginous
Scenedesmus obliquus
at High Solid Loadings. EUR J LIPID SCI TECH 2020. [DOI: 10.1002/ejlt.201900328] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jayati Trivedi
- Biofuels DivisionCSIR‐ Indian Institute of Petroleum Mohkampur Dehradun 248005 India
- Academy of Scientific and Innovative Research (AcSIR)CSIR‐HRDC Campus Ghaziabad 201002 India
| | - Neeraj Atray
- Biofuels DivisionCSIR‐ Indian Institute of Petroleum Mohkampur Dehradun 248005 India
- Academy of Scientific and Innovative Research (AcSIR)CSIR‐HRDC Campus Ghaziabad 201002 India
| | - Deepti Agrawal
- Academy of Scientific and Innovative Research (AcSIR)CSIR‐HRDC Campus Ghaziabad 201002 India
- Materials resource efficiency DivisionCSIR‐ Indian Institute of Petroleum Mohkampur Dehradun 248005 India
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25
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Patel A, Karageorgou D, Rova E, Katapodis P, Rova U, Christakopoulos P, Matsakas L. An Overview of Potential Oleaginous Microorganisms and Their Role in Biodiesel and Omega-3 Fatty Acid-Based Industries. Microorganisms 2020; 8:E434. [PMID: 32204542 PMCID: PMC7143722 DOI: 10.3390/microorganisms8030434] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/16/2020] [Accepted: 03/18/2020] [Indexed: 12/17/2022] Open
Abstract
Microorganisms are known to be natural oil producers in their cellular compartments. Microorganisms that accumulate more than 20% w/w of lipids on a cell dry weight basis are considered as oleaginous microorganisms. These are capable of synthesizing vast majority of fatty acids from short hydrocarbonated chain (C6) to long hydrocarbonated chain (C36), which may be saturated (SFA), monounsaturated (MUFA), or polyunsaturated fatty acids (PUFA), depending on the presence and number of double bonds in hydrocarbonated chains. Depending on the fatty acid profile, the oils obtained from oleaginous microorganisms are utilized as feedstock for either biodiesel production or as nutraceuticals. Mainly microalgae, bacteria, and yeasts are involved in the production of biodiesel, whereas thraustochytrids, fungi, and some of the microalgae are well known to be producers of very long-chain PUFA (omega-3 fatty acids). In this review article, the type of oleaginous microorganisms and their expertise in the field of biodiesel or omega-3 fatty acids, advances in metabolic engineering tools for enhanced lipid accumulation, upstream and downstream processing of lipids, including purification of biodiesel and concentration of omega-3 fatty acids are reviewed.
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Affiliation(s)
- Alok Patel
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden; (A.P.); (E.R.); (U.R.); (P.C.)
| | - Dimitra Karageorgou
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, Ioannina 45110, Greece; (D.K.); (P.K.)
| | - Emma Rova
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden; (A.P.); (E.R.); (U.R.); (P.C.)
| | - Petros Katapodis
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, Ioannina 45110, Greece; (D.K.); (P.K.)
| | - Ulrika Rova
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden; (A.P.); (E.R.); (U.R.); (P.C.)
| | - Paul Christakopoulos
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden; (A.P.); (E.R.); (U.R.); (P.C.)
| | - Leonidas Matsakas
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden; (A.P.); (E.R.); (U.R.); (P.C.)
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Anto S, Mukherjee SS, Muthappa R, Mathimani T, Deviram G, Kumar SS, Verma TN, Pugazhendhi A. Algae as green energy reserve: Technological outlook on biofuel production. CHEMOSPHERE 2020; 242:125079. [PMID: 31678847 DOI: 10.1016/j.chemosphere.2019.125079] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/12/2019] [Accepted: 10/05/2019] [Indexed: 05/14/2023]
Abstract
Depletion of fossil fuel sources and their emissions have triggered a vigorous research in finding alternative and renewable energy sources. In this regard, algae are being exploited as a third generation feedstock for the production of biofuels such as bioethanol, biodiesel, biogas, and biohydrogen. However, algal based biofuel does not reach successful peak due to the higher cost issues in cultivation, harvesting and extraction steps. Therefore, this review presents an extensive detail of deriving biofuels from algal biomass starting from various algae cultivation systems like raceway pond and photobioreactors and its bottlenecks. Evolution of biofuel feedstocks from edible oils to algae have been addressed in the initial section of the manuscript to provide insights on the different generation of biofuel. Different configuration of photobioreactor systems used to reduce contamination risk and improve biomass productivity were extensively discussed. Photobioreactor performance greatly relies on the conditions under which it is operated. Hence, the importance of such conditions alike temperature, light intensity, inoculum size, CO2, nutrient concentration, and mixing in bioreactor performance have been described. As the lipid is the main component in biodiesel production, several pretreatment methods such as physical, chemical and biological for disrupting cell membrane to extract lipid were comprehensively reviewed and presented. This review article had put forth the recent advancement in the pretreatment methods like hydrothermal processing of algal biomasses using acid or alkali. Eventually, challenges and future dimensions in algal cultivation and pretreatment process were discussed in detail for making an economically viable algal biofuel.
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Affiliation(s)
- Susaimanickam Anto
- Department of Energy and Environment, National Institute of Technology, Tiruchirappalli - 620015, Tamil Nadu, India
| | - Subhra Sankha Mukherjee
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli - 620 015, Tamil Nadu, India
| | - Rhea Muthappa
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli - 620 015, Tamil Nadu, India
| | - Thangavel Mathimani
- Department of Energy and Environment, National Institute of Technology, Tiruchirappalli - 620015, Tamil Nadu, India
| | - Garlapati Deviram
- National Centre for Coastal Research, Ministry of Earth Science (MoES), Chennai - 600 100, Tamil Nadu, India
| | - Smita S Kumar
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas - 110016, New Delhi, India
| | - Tikendra Nath Verma
- Department of Mechanical Engineering, National Institute of Technology Manipur, India
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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Akaberi S, Gusbeth C, Silve A, Senthilnathan DS, Navarro-López E, Molina-Grima E, Müller G, Frey W. Effect of pulsed electric field treatment on enzymatic hydrolysis of proteins of Scenedesmus almeriensis. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101656] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Yuan J, Yan X, Chen X, Jiang X, Ye K, Xiong Q, Kong J, Huang Y, Jiang C, Xu T, Xie G. A mild and efficient extraction method for polysaccharides from Sinonovacula constricta and study of their structural characteristic and antioxidant activities. Int J Biol Macromol 2019; 143:913-921. [PMID: 31678104 DOI: 10.1016/j.ijbiomac.2019.10.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/30/2019] [Accepted: 10/03/2019] [Indexed: 12/12/2022]
Abstract
The aim of this paper is to develop a mild and efficient extraction method for polysaccharides from Sinonovacula constricta (SCP) using enzyme extraction, and analyze the structural characteristics and antioxidant activities of the two purified polysaccharide fractions (SCP-1 and SCP-2). Firstly, enzyme extraction conditions were optimized, and the conditions were found to be, as follows: enzymolysis time 173.0 min, pH 8.2, enzymolysis temperature 50.0 ℃ and enzyme content 4.0%. Comparison between enzymatic extraction and water extraction was obtained from visual, UV-visible and IR spectrum images. The results clearly indicate that there is no significant difference between them with regard to the composition of the SCP fraction, but the polysaccharide content produced by enzymatic extraction is higher. Then, the physicochemical properties and structural characteristics of SCP-1 and SCP-2 were investigated using FT-TR, UV, GC and HPGPC. The carbohydrate content, sulfuric radicals and uronic acids of the two fractions were detected. Both SCP-1 and SCP-2 were mainly consisted of glucose, but their molecular weights were different. In addition, compared the Fe2+ chelating activity, ABTS+ radical and superoxide radical scavenging activity, and lipid peroxidation inhibition activity of SCP-1 and SCP-2, it turned out that SCP-2 had stronger antioxidant activity than SCP-1.
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Affiliation(s)
- Jun Yuan
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China; Jiangsu Provincial Key Laboratory of Palygorskite Science and Applied Technology, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China
| | - Xiaoteng Yan
- Huai'an Second People's Hospital, Huai'an 223002, Jiangsu, PR China
| | - Xing Chen
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China; Jiangsu Provincial Key Laboratory of Palygorskite Science and Applied Technology, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China
| | - Xinqi Jiang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Keqi Ye
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Qingping Xiong
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China; Jiangsu Provincial Key Laboratory of Palygorskite Science and Applied Technology, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China
| | - Jing Kong
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Yange Huang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Changxing Jiang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Tingting Xu
- Jiangsu Provincial Key Laboratory of Palygorskite Science and Applied Technology, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China; National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China.
| | - Guoyong Xie
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China; Department of Resources Science of Traditional Chinese Medicines, State Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, PR China.
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González-González LM, Astals S, Pratt S, Jensen PD, Schenk PM. Impact of osmotic shock pre-treatment on microalgae lipid extraction and subsequent methane production. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.biteb.2019.100214] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Lukic J, Vukotic G, Stanisavljevic N, Kosanovic D, Molnar Z, Begovic J, Terzic-Vidojevic A, Jeney G, Ljubobratovic U. Solid state treatment with Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 improves nutrient bioavailability in granular fish feed. PLoS One 2019; 14:e0219558. [PMID: 31295295 PMCID: PMC6624013 DOI: 10.1371/journal.pone.0219558] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 06/13/2019] [Indexed: 12/04/2022] Open
Abstract
The aim of this research was to improve nutritive value of fishmeal-based feed by lactobacilli in order to achieve satisfactory nutrient availability needed to support fish development. Feed was solid-state treated at a laboratory scale with the combination of Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 in different experimental settings, which included the variation of strain ratio, total lactobacilli concentration, percentage of moisture and duration of incubation. Short peptides, soluble proteins, phospho-, neutral and unsaturated lipids were quantified. Differences among treated and control feeds were evaluated by Student t-test, while Gaussian process regression (GPR) modeling was employed to simulate the incubation process and define the optimal treatment combination in the context of overall feed nutritional profile. Treatment duration was shown to be the critical determinant of final outcome, either as single factor or via interaction with strain ratio. Optimal nutrient balance was achieved with 12 h incubation period, 260% moisture, 75:25 and 50:50 BGHN14:BGT10 ratios and 200 mg of lactobacilli per g of dry feed. This study should serve as the basis for large-scale tests which would simulate on-farm production of both fishmeal-based and unconventional, lower cost aquafeed with added value.
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Affiliation(s)
- Jovanka Lukic
- Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade, Belgrade, Serbia
| | - Goran Vukotic
- Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade, Belgrade, Serbia
- Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Nemanja Stanisavljevic
- Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade, Belgrade, Serbia
| | - Dejana Kosanovic
- Institute of Virology, Vaccines and Sera “Torlak”, Belgrade, Serbia
| | - Zsuzsanna Molnar
- Research Institute for Fisheries and Aquaculture (NAIK HAKI), Szarvas, Hungary
| | - Jelena Begovic
- Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade, Belgrade, Serbia
| | - Amarela Terzic-Vidojevic
- Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade, Belgrade, Serbia
| | - Galina Jeney
- Research Institute for Fisheries and Aquaculture (NAIK HAKI), Szarvas, Hungary
| | - Uros Ljubobratovic
- Research Institute for Fisheries and Aquaculture (NAIK HAKI), Szarvas, Hungary
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Jeevan Kumar SP, Banerjee R. Enhanced lipid extraction from oleaginous yeast biomass using ultrasound assisted extraction: A greener and scalable process. ULTRASONICS SONOCHEMISTRY 2019; 52:25-32. [PMID: 30563792 DOI: 10.1016/j.ultsonch.2018.08.003] [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: 06/05/2018] [Revised: 07/19/2018] [Accepted: 08/08/2018] [Indexed: 06/09/2023]
Abstract
Soaring demand for alternative fuels has been gaining wide interest due to depletion of conventional fuel, increasing petroleum prices and greenhouse gas emissions. Biodiesel, an alternative fuel, derived from oleaginous microbes has been promising because of short incubation time and easy to scale up. Oleaginous yeast Trichosporon sp. is capable of utilizing glycerol and agro-residues for enhanced lipid synthesis. Lipid extraction from Trichosporon sp. biomass showed highest lipid content with ultrasonic assisted extraction (43 ± 0.33%, w/w) coupled with process parameters than the conventional Soxhlet (30 ± 0.28%, w/w) and Binary solvent [choloroform:methanol, (2:1, v/v)] methods (36 ± 0.38%, w/w), respectively. The standardized process parameters of ultrasonic assisted extraction coupled with chloroform/methanol solvent system resulted 95-97% of conversion efficiency in 20 min at 30 °C with a frequency of 50 Hz and 2800 W power, respectively. Enzymatic transesterification of yeast biomass lipid obtained 85% of fatty acid methyl esters that are predominant with oleic acid methyl ester followed by palmitic and stearic acid methyl esters, respectively. These results substantiate that the ultrasonic assisted extraction is a potential green extraction technique that had reduced time, energy and solvent consumption without compromising on lipid quality. Deploying this green extraction technique could make the biodiesel production process inexpensive and eco-friendly.
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Affiliation(s)
- S P Jeevan Kumar
- Agricultural & Food Engineering Department, Indian Institute of Technology, Kharagpur 721302, West Bengal, India; ICAR-Indian Institute of Seed Science, Kushmaur, Mau 275103, U.P., India
| | - Rintu Banerjee
- Agricultural & Food Engineering Department, Indian Institute of Technology, Kharagpur 721302, West Bengal, India.
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Coelho D, Lopes PA, Cardoso V, Ponte P, Brás J, Madeira MS, Alfaia CM, Bandarra NM, Gerken HG, Fontes CMGA, Prates JAM. Novel combination of feed enzymes to improve the degradation of Chlorella vulgaris recalcitrant cell wall. Sci Rep 2019; 9:5382. [PMID: 30926940 PMCID: PMC6440988 DOI: 10.1038/s41598-019-41775-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 03/17/2019] [Indexed: 01/23/2023] Open
Abstract
In this study, a rational combination of 200 pre-selected Carbohydrate-Active enzymes (CAZymes) and sulfatases were tested, individually or combined, according to their ability to degrade Chlorella vulgaris cell wall to access its valuable nutritional compounds. The disruption of microalgae cell walls by a four-enzyme mixture (Mix) in comparison with the control, enabled to release up to 1.21 g/L of reducing sugars (p < 0.001), led to an eight-fold increase in oligosaccharides release (p < 0.001), and reduced the fluorescence intensity by 47% after staining with Calcofluor White (p < 0.001). The Mix treatment was successful in releasing proteins (p < 0.001), some MUFA (p < 0.05), and the beneficial 18:3n-3 fatty acid (p < 0.05). Even if no variation was detected for chlorophylls (p > 0.05), total carotenoids were increased in the supernatant (p < 0.05) from the Mix treatment, relative to the control. Taken together, these results indicate that this four-enzyme Mix displays an effective capacity to degrade C. vulgaris cell wall. Thus, these enzymes may constitute a good approach to improve the bioavailability of C. vulgaris nutrients for monogastric diets, in particular, and to facilitate the cost-effective use of microalgae by the feed industry, in general.
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Affiliation(s)
- Diogo Coelho
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477, Lisboa, Portugal
| | - Paula A Lopes
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477, Lisboa, Portugal
| | - Vânia Cardoso
- NZYTech - Genes and Enzymes, Estrada do Paço do Lumiar, Campus do Lumiar, Edifício E, 1649-038, Lisboa, Portugal
| | - Patrícia Ponte
- NZYTech - Genes and Enzymes, Estrada do Paço do Lumiar, Campus do Lumiar, Edifício E, 1649-038, Lisboa, Portugal
| | - Joana Brás
- NZYTech - Genes and Enzymes, Estrada do Paço do Lumiar, Campus do Lumiar, Edifício E, 1649-038, Lisboa, Portugal
| | - Marta S Madeira
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477, Lisboa, Portugal
| | - Cristina M Alfaia
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477, Lisboa, Portugal
| | - Narcisa M Bandarra
- DivAV, Instituto Português do Mar e da Atmosfera, Rua Alfredo Magalhães Ramalho, 1495-006, Lisboa, Portugal
| | - Henri G Gerken
- Arizona Center for Algae Technology and Innovation, Arizona State University, 7418 Innovation Way South, Building ISTB-3, Room 103, Mesa, Arizona, United States of America
| | - Carlos M G A Fontes
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477, Lisboa, Portugal.,NZYTech - Genes and Enzymes, Estrada do Paço do Lumiar, Campus do Lumiar, Edifício E, 1649-038, Lisboa, Portugal
| | - José A M Prates
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477, Lisboa, Portugal. .,NZYTech - Genes and Enzymes, Estrada do Paço do Lumiar, Campus do Lumiar, Edifício E, 1649-038, Lisboa, Portugal.
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Abstract
Spirulina biomass has great nutritional value, but its proteins are not as well adsorbed as animal ones are. New functional food ingredients and metabolites can be obtained from spirulina, using different selective biodegradations of its biomass. Four enzyme-assisted extraction methods were independently studied, and their best operation conditions were determined. Enzymes were employed to increase the yield of easily adsorbed proteic extracts. A biomass pre-treatment using Alcalase® (pH 6.5, 1% v/w, and 30 °C) is described, which increased the extraction yield of hydrophilic biocomponents by 90% w/w compared to the simple solvent extraction. Alcalase® gives rise to 2.5–6.1 times more amino acids than the others and eight differential short peptides (438–1493 Da). These processes were scaled up and the extracts were analyzed. Higher destruction of cell integrity in the case of Alcalase® was also visualized by transmission electron microscopy. The described extractive technology uses cheap, commercial, food grade enzymes and hexane, accepted for food and drug safety. It is a promising process for a competitive biofactory, thanks to an efficient production of extracts with high applied potential in the nutrition, cosmetic, and pharmaceutical industries.
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Ramesh Kumar B, Deviram G, Mathimani T, Duc PA, Pugazhendhi A. Microalgae as rich source of polyunsaturated fatty acids. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.01.017] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sosa-Hernández JE, Escobedo-Avellaneda Z, Iqbal HMN, Welti-Chanes J. State-of-the-Art Extraction Methodologies for Bioactive Compounds from Algal Biome to Meet Bio-Economy Challenges and Opportunities. Molecules 2018; 23:E2953. [PMID: 30424551 PMCID: PMC6278541 DOI: 10.3390/molecules23112953] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 11/01/2018] [Accepted: 11/04/2018] [Indexed: 02/05/2023] Open
Abstract
Over the years, significant research efforts have been made to extract bioactive compounds by applying different methodologies for various applications. For instance, the use of bioactive compounds in several commercial sectors such as biomedical, pharmaceutical, cosmeceutical, nutraceutical and chemical industries, has promoted the need of the most suitable and standardized methods to extract these bioactive constituents in a sophisticated and cost-effective manner. In practice, several conventional extraction methods have numerous limitations, e.g., lower efficacy, high energy cost, low yield, etc., thus urges for new state-of-the-art extraction methodologies. Thus, the optimization along with the integration of efficient pretreatment strategies followed by traditional extraction and purification processes, have been the primary goal of current research and development studies. Among different sources, algal biome has been found as a promising and feasible source to extract a broader spectrum of bioactive compounds with point-of-care application potentialities. As evident from the literature, algal bio-products includes biofuels, lipids, polyunsaturated fatty acids, pigments, enzymes, polysaccharides, and proteins. The recovery of products from algal biomass is a matter of constant development and progress. This review covers recent advancements in the extraction methodologies such as enzyme-assisted extraction (EAE), supercritical-fluid extraction (SFE), microwave-assisted extraction (MAE) and pressurized-liquid extraction (PLF) along with their working mechanism for extracting bioactive compounds from algal-based sources to meet bio-economy challenges and opportunities. A particular focus has been given to design characteristics, performance evaluation, and point-of-care applications of different bioactive compounds of microalgae. The previous and recent studies on the anticancer, antibacterial, and antiviral potentialities of algal-based bioactive compounds have also been discussed with particular reference to the mechanism underlying the effects of these active constituents with the related pathways. Towards the end, the information is also given on the possible research gaps, future perspectives and concluding remarks.
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Affiliation(s)
- Juan Eduardo Sosa-Hernández
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología FEMSA, Ave. Eugenio Garza Sada 2501, C.P. 64849 Monterrey, N.L., Mexico.
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Xue Z, Wan F, Yu W, Liu J, Zhang Z, Kou X. Edible Oil Production From Microalgae: A Review. EUR J LIPID SCI TECH 2018. [DOI: 10.1002/ejlt.201700428] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhaohui Xue
- School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Fang Wan
- School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Wancong Yu
- Tianjin Academy of Agricultural Sciences; 300381 Tianjin China
| | - Jing Liu
- School of Chemistry and Chemical Engineering; Qinghai Nationalities University; 810007 Qinghai China
| | - Zhijun Zhang
- Tianjin Academy of Agricultural Sciences; 300381 Tianjin China
| | - Xiaohong Kou
- School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
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Chan LG, Cohen JL, de Moura Bell JMLN. Conversion of Agricultural Streams and Food-Processing By-Products to Value-Added Compounds Using Filamentous Fungi. Annu Rev Food Sci Technol 2018; 9:503-523. [DOI: 10.1146/annurev-food-030117-012626] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lauryn G. Chan
- Department of Food Science and Technology, University of California, Davis, California 95616, USA
| | - Joshua L. Cohen
- Department of Food Science and Technology, University of California, Davis, California 95616, USA
| | - Juliana Maria Leite Nobrega de Moura Bell
- Department of Food Science and Technology, University of California, Davis, California 95616, USA
- Department of Biological and Agricultural Engineering, University of California, Davis, California 95616, USA
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Maffei G, Bracciale MP, Broggi A, Zuorro A, Santarelli ML, Lavecchia R. Effect of an enzymatic treatment with cellulase and mannanase on the structural properties of Nannochloropsis microalgae. BIORESOURCE TECHNOLOGY 2018; 249:592-598. [PMID: 29091842 DOI: 10.1016/j.biortech.2017.10.062] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/14/2017] [Accepted: 10/16/2017] [Indexed: 05/28/2023]
Abstract
The effects of an enzymatic treatment with cellulase and mannanase on the properties of marine microalgae Nannochloropsis sp. were investigated. The combined use of these enzymes synergistically promoted the recovery of lipids from the microalgae, increasing the extraction yield from 40.8 to over 73%. Untreated and enzymatically treated microalgae were characterized by chemical analysis and by TGA/DTG, FTIR, XRD and SEM. Significant changes were observed in the chemical composition and thermal behavior of the microalgae. The enzymatic treatment also resulted in an increase of the crystalline-to-amorphous cellulose ratio. SEM images revealed dramatic changes in cell morphology, extensive cell damage and release of intracellular material. Overall, the results obtained indicate that the enzymes used are capable of disrupting the microalgal cell wall and that a combination of common analytical techniques can be used to assess the enzyme-induced damage.
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Affiliation(s)
- Gianluca Maffei
- DICMA - Department of Chemical Engineering Materials and Environment, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy
| | - Maria Paola Bracciale
- DICMA - Department of Chemical Engineering Materials and Environment, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy; CISTeC - Research Center in Science and Technology for the Preservation of Historical-Architectural Heritage, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy
| | - Alessandra Broggi
- DICMA - Department of Chemical Engineering Materials and Environment, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy; CISTeC - Research Center in Science and Technology for the Preservation of Historical-Architectural Heritage, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy
| | - Antonio Zuorro
- DICMA - Department of Chemical Engineering Materials and Environment, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy
| | - Maria Laura Santarelli
- DICMA - Department of Chemical Engineering Materials and Environment, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy; CISTeC - Research Center in Science and Technology for the Preservation of Historical-Architectural Heritage, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy.
| | - Roberto Lavecchia
- DICMA - Department of Chemical Engineering Materials and Environment, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy.
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40
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Yousuf A, Ethiraj B, Khan MR, Pirozzi D. Fungal Biorefinery for the Production of Single Cell Oils as Advanced Biofuels. Fungal Biol 2018. [DOI: 10.1007/978-3-319-90379-8_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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41
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Cultivation of microalgae for biodiesel production: A review on upstream and downstream processing. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2017.08.010] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Hu T, Zhang JL. Mass-spectrometry-based lipidomics. J Sep Sci 2017; 41:351-372. [PMID: 28859259 DOI: 10.1002/jssc.201700709] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 08/17/2017] [Accepted: 08/18/2017] [Indexed: 01/09/2023]
Abstract
Lipids, which have a core function in energy storage, signalling and biofilm structures, play important roles in a variety of cellular processes because of the great diversity of their structural and physiochemical properties. Lipidomics is the large-scale profiling and quantification of biogenic lipid molecules, the comprehensive study of their pathways and the interpretation of their physiological significance based on analytical chemistry and statistical analysis. Lipidomics will not only provide insight into the physiological functions of lipid molecules but will also provide an approach to discovering important biomarkers for diagnosis or treatment of human diseases. Mass-spectrometry-based analytical techniques are currently the most widely used and most effective tools for lipid profiling and quantification. In this review, the field of mass-spectrometry-based lipidomics was discussed. Recent progress in all essential steps in lipidomics was carefully discussed in this review, including lipid extraction strategies, separation techniques and mass-spectrometry-based analytical and quantitative methods in lipidomics. We also focused on novel resolution strategies for difficult problems in determining C=C bond positions in lipidomics. Finally, new technologies that were developed in recent years including single-cell lipidomics, flux-based lipidomics and multiomics technologies were also reviewed.
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Affiliation(s)
- Ting Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, PR China
| | - Jin-Lan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, PR China
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Chew KW, Yap JY, Show PL, Suan NH, Juan JC, Ling TC, Lee DJ, Chang JS. Microalgae biorefinery: High value products perspectives. BIORESOURCE TECHNOLOGY 2017; 229:53-62. [PMID: 28107722 DOI: 10.1016/j.biortech.2017.01.006] [Citation(s) in RCA: 485] [Impact Index Per Article: 69.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 05/04/2023]
Abstract
Microalgae have received much interest as a biofuel feedstock in response to the uprising energy crisis, climate change and depletion of natural sources. Development of microalgal biofuels from microalgae does not satisfy the economic feasibility of overwhelming capital investments and operations. Hence, high-value co-products have been produced through the extraction of a fraction of algae to improve the economics of a microalgae biorefinery. Examples of these high-value products are pigments, proteins, lipids, carbohydrates, vitamins and anti-oxidants, with applications in cosmetics, nutritional and pharmaceuticals industries. To promote the sustainability of this process, an innovative microalgae biorefinery structure is implemented through the production of multiple products in the form of high value products and biofuel. This review presents the current challenges in the extraction of high value products from microalgae and its integration in the biorefinery. The economic potential assessment of microalgae biorefinery was evaluated to highlight the feasibility of the process.
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Affiliation(s)
- Kit Wayne Chew
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia; Nanotechnology & Catalysis Research Centre (NANOCAT), University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Jing Ying Yap
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia; Food and Pharmaceutical Engineering Research Group, Molecular Pharming and Bioproduction Research Group, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Ng Hui Suan
- Department of Food Science and Nutrition, Faculty of Applied Sciences, UCSI University, UCSI Heights, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Joon Ching Juan
- Laboratory of Advanced Catalysis and Environmental Technology, Monash University Sunway Campus, Malaysia; Nanotechnology & Catalysis Research Centre (NANOCAT), University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Tau Chuan Ling
- Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 701, Taiwan.
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44
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Michalak I, Dmytryk A, Śmieszek A, Marycz K. Chemical Characterization of Enteromorpha prolifera Extract Obtained by Enzyme-Assisted Extraction and Its Influence on the Metabolic Activity of Caco-2. Int J Mol Sci 2017; 18:E479. [PMID: 28241482 PMCID: PMC5372495 DOI: 10.3390/ijms18030479] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/10/2017] [Accepted: 02/16/2017] [Indexed: 01/07/2023] Open
Abstract
The green seaweed Enteromorpha prolifera was used as a feedstock for the production of enzymatic hydrolysate using cellulase. The selection of the conditions for enzymatic hydrolysis of the biomass was carried out for different enzyme doses and incubation periods. The obtained extract was examined in terms of its multielemental composition, content of polyphenols and antibacterial properties (tested against Escherichia coli and Staphylococcus aureus). Additionally, its influence on the metabolic activity of human colon epithelial cells (Caco-2) was analyzed. The tested concentrations of extract using an in vitro model were 62.5, 125, 250, 500, 1000 and 2000 µg/mL. The hydrolysis yield in the most suitable experimental conditions (8-h process and 50 and 100 µL of cellulase) was 36%. Micro- and macroelements were poorly extracted from the algal biomass. Total phenolic content was 55 mg of gallic acid equivalent per 100 g of dry mass of extract. The cytotoxic effect of extracts, related to the inhibition of the metabolic activity of Caco-2, was noted only after 24 h. In turn, cultures of Caco-2 propagated with extracts for 72 h were characterized by significantly elevated metabolism (the concentration of extracts ranged from 62.5 to 1000 µg/mL, p < 0.05). Obtained results indicated the high biological activity of the prepared extracts; however, the observed effects did not occur in a dose-dependent manner.
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Affiliation(s)
- Izabela Michalak
- Department of Advanced Material Technologies, Wrocław University of Science and Technology, Smoluchowskiego 25 St., 50-372 Wrocław, Poland.
| | - Agnieszka Dmytryk
- Department of Advanced Material Technologies, Wrocław University of Science and Technology, Smoluchowskiego 25 St., 50-372 Wrocław, Poland.
| | - Agnieszka Śmieszek
- Scanning Electron Microscopy Laboratory, Wrocław University of Environmental and Life Science, Kożuchowska 5B St., 50-631 Wrocław, Poland.
| | - Krzysztof Marycz
- Scanning Electron Microscopy Laboratory, Wrocław University of Environmental and Life Science, Kożuchowska 5B St., 50-631 Wrocław, Poland.
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Forfang K, Zimmermann B, Kosa G, Kohler A, Shapaval V. FTIR Spectroscopy for Evaluation and Monitoring of Lipid Extraction Efficiency for Oleaginous Fungi. PLoS One 2017; 12:e0170611. [PMID: 28118388 PMCID: PMC5261814 DOI: 10.1371/journal.pone.0170611] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 01/06/2017] [Indexed: 11/19/2022] Open
Abstract
To assess whether Fourier Transform Infrared (FTIR) spectroscopy could be used to evaluate and monitor lipid extraction processes, the extraction methods of Folch, Bligh and Lewis were used. Biomass of the oleaginous fungi Mucor circinelloides and Mortierella alpina were employed as lipid-rich material for the lipid extraction. The presence of lipids was determined by recording infrared spectra of all components in the lipid extraction procedure, such as the biomass before and after extraction, the water and extract phases. Infrared spectra revealed the incomplete extraction after all three extraction methods applied to M.circinelloides and it was shown that mechanical disruption using bead beating and HCl treatment were necessary to complete the extraction in this species. FTIR spectroscopy was used to identify components, such as polyphosphates, that may have negatively affected the extraction process and resulted in differences in extraction efficiency between M.circinelloides and M.alpina. Residual lipids could not be detected in the infrared spectra of M.alpina biomass after extraction using the Folch and Lewis methods, indicating their complete lipid extraction in this species. Bligh extraction underestimated the fatty acid content of both M.circinelloides and M.alpina biomass and an increase in the initial solvent-to-sample ratio (from 3:1 to 20:1) was needed to achieve complete extraction and a lipid-free IR spectrum. In accordance with previous studies, the gravimetric lipid yield was shown to overestimate the potential of the SCO producers and FAME quantification in GC-FID was found to be the best-suited method for lipid quantification. We conclude that FTIR spectroscopy can serve as a tool for evaluating the lipid extraction efficiency, in addition to identifying components that may affect lipid extraction processes.
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Affiliation(s)
- Kristin Forfang
- Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, Ås, Norway
- Nofima AS, Ås, Norway
- * E-mail:
| | - Boris Zimmermann
- Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Gergely Kosa
- Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, Ås, Norway
- Nofima AS, Ås, Norway
| | - Achim Kohler
- Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Volha Shapaval
- Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, Ås, Norway
- Nofima AS, Ås, Norway
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46
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Qin Y, Zhang Z, Song T, Lv G. Optimization of Enzyme-assisted Extraction of Antitumor Polysaccharides from Hericium erinaceus mycelia. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2017. [DOI: 10.3136/fstr.23.31] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Yi Qin
- Technology Transfer Center, Industrial Technology Research Institute of Zhejiang University
| | - Zuofa Zhang
- Institute of Horticulture, Zhejiang Academy of Agricultural Science
| | - Tingting Song
- Institute of Horticulture, Zhejiang Academy of Agricultural Science
| | - Guoying Lv
- Institute of Horticulture, Zhejiang Academy of Agricultural Science
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47
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Wu C, Xiao Y, Lin W, Li J, Zhang S, Zhu J, Rong J. Aqueous enzymatic process for cell wall degradation and lipid extraction from Nannochloropsis sp. BIORESOURCE TECHNOLOGY 2017; 223:312-316. [PMID: 27806886 DOI: 10.1016/j.biortech.2016.10.063] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/19/2016] [Accepted: 10/20/2016] [Indexed: 05/13/2023]
Abstract
An effective cell disruption method, including alkaline pretreatment and subsequent enzymatic treatment, was established to break cell walls and extract lipid from Nannochloropsis sp. A synergistic effect was found between alkaline pretreatment and enzymatic treatment. The combination of commercialize enzymes (cellulase, protease, lysozyme, and pectinase) achieved higher lipid yield compared with a single enzyme application. With the compromise between economic feasibility and lipid yield, the optimum reaction conditions were obtained with alkaline pretreatment at pH 10.5 at 110°C for 4h, and subsequent enzymatic treatment at pH 4 at 50°C for 30min with the dosage of each enzyme at 200IU/g. As high as 90.0% of lipid was extracted under optimal conditions from Nannochloropsis sp.
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Affiliation(s)
- Chongchong Wu
- Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
| | - Ye Xiao
- Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
| | - Weiguo Lin
- Research Institute of Petroleum Processing, Sinopec, Beijing 100083, China
| | - Jiaquan Li
- Research Institute of Petroleum Processing, Sinopec, Beijing 100083, China
| | - Saisai Zhang
- Research Institute of Petroleum Processing, Sinopec, Beijing 100083, China
| | - Junying Zhu
- Research Institute of Petroleum Processing, Sinopec, Beijing 100083, China
| | - Junfeng Rong
- Research Institute of Petroleum Processing, Sinopec, Beijing 100083, China.
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48
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Zuorro A, Maffei G, Lavecchia R. Optimization of enzyme-assisted lipid extraction from Nannochloropsis microalgae. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.08.016] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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49
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Zuorro A, Miglietta S, Familiari G, Lavecchia R. Enhanced lipid recovery from Nannochloropsis microalgae by treatment with optimized cell wall degrading enzyme mixtures. BIORESOURCE TECHNOLOGY 2016; 212:35-41. [PMID: 27078205 DOI: 10.1016/j.biortech.2016.04.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 04/05/2016] [Accepted: 04/06/2016] [Indexed: 06/05/2023]
Abstract
A statistical mixture design approach was used to investigate the effects of cell wall degrading enzymes on the recovery of lipids from Nannochloropsis sp. A preliminary screening of potentially suitable enzyme preparations, including lysozyme, cellulase and different types of hemicellulases, was carried out. The most effective preparations were then taken as basic components for the formulation of enzyme mixtures. Optimized ternary mixtures consisting of cellulase and two hemicellulases were obtained which allowed the recovery of up to 37.2g of lipids per 100g of dry biomass. SEM and TEM images of the enzymatically treated microalga revealed extensive cell damage, with degradation of the cell wall and release of intracellular material. Overall, the results obtained demonstrate that the mixture design method can be used to prepare cell wall degrading enzyme cocktails that can significantly improve the recovery of lipids or other valuable components from microalgae.
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Affiliation(s)
- Antonio Zuorro
- Department of Chemical Engineering, Materials and Environment, Sapienza University, Roma, Italy
| | - Selenia Miglietta
- Department of Anatomical, Histological, Forensic and Locomotor Apparatus Sciences, Sapienza University, Roma, Italy
| | - Giuseppe Familiari
- Department of Anatomical, Histological, Forensic and Locomotor Apparatus Sciences, Sapienza University, Roma, Italy
| | - Roberto Lavecchia
- Department of Chemical Engineering, Materials and Environment, Sapienza University, Roma, Italy.
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Lai YS, McCaw A, Ontiveros-Valencia A, Shi Y, Parameswaran P, Rittmann BE. Multiple synergistic benefits of selective fermentation of Scenedesmus biomass for fuel recovery via wet-biomass extraction. ALGAL RES 2016. [DOI: 10.1016/j.algal.2016.05.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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