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Young Lee J, Seop Lee J, Jun Sim S. Enhanced toxicity-free astaxanthin extraction from Haematococcus pluvialis via concurrent cell disruption and demulsification. BIORESOURCE TECHNOLOGY 2024; 406:130974. [PMID: 38879049 DOI: 10.1016/j.biortech.2024.130974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/17/2024] [Accepted: 06/12/2024] [Indexed: 06/20/2024]
Abstract
The extraction of astaxanthin from Haematococcus pluvialis involves the utilization of petroleum-derived organic solvents or supercritical CO2, beset by safety concerns, high costs, and environmental sustainability limitations. This study, in contrast, employed a method involving the adjustment of salt concentration, propylene glycol, and vegetable oil fraction to disrupt emulsion in aqueous cell lysates for facilitating the separation of astaxanthin. Under optimized conditions, an astaxanthin-containing oil with a content of 1.88% was obtained even with the use of wet biomass, and four rounds of consecutive extraction resulted in a cumulative recovery yield of 66.41%. This process produced astaxanthin-enriched soybean oil with 9.49 times improved antioxidant capacity that satisfies a requirement for health functional application. Omitting the solvent removal and drying processes, which consume tremendous energy, can reduce the production cost by 2.98 times compared to conventional methods. Consequently, this study suggests an effective technique for producing edible oil containing H. pluvialis-derived astaxanthin.
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Affiliation(s)
- Ji Young Lee
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jeong Seop Lee
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
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2
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Cruz VA, Ferreira NJ, Le Roux E, Destandau E, de Oliveira AL. Intensification of the SFE Using Ethanol as a Cosolvent and Integration of the SFE Process with sc-CO 2 Followed by PLE Using Pressurized Ethanol of Black Soldier Fly ( Hermetia illucens L.) Larvae Meal-Extract Yields and Characterization. Foods 2024; 13:1620. [PMID: 38890848 PMCID: PMC11171942 DOI: 10.3390/foods13111620] [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: 04/10/2024] [Revised: 04/30/2024] [Accepted: 05/04/2024] [Indexed: 06/20/2024] Open
Abstract
The objective of this research was to investigate and compare the results obtained in the intensification and integration of (sc-CO2) under different pressure conditions (25 and 30 MPa) at 60 °C. When intensifying the process, ethanol (10%) was used as a co-solvent (sc-CO2 + EtOH). In the process integration, black soldier fly larvae flour, defatted via supercritical extraction (SFE), was the raw material for pressurized liquid extraction (PLE) using ethanol as solvent. The extract yields, fatty acid profile, free fatty acids, triacylglycerols (TAGs), oxidative stability, and nutritional quality of the oil obtained using sc-CO2 + EtOH were evaluated. The composition of bioactive compounds (carotenoids, acidity, antioxidant compounds, tocopherols, and phospholipids) was determined in both extracts. The yields of the extracts were different by 32.5 to 53.9%. In the extracts obtained with sc-CO2 + EtOH (10%), the predominant fatty acids were oleic, palmitic, and linoleic, with considerable levels of desirable fatty acids (DFA), tocopherols, and phospholipids. The nutritional indices showed good values for polyunsaturated and saturated fatty acids (PUFAs/SFAs), above 0.45%. Extracts from larvae meal defatted with SFE showed carotenoids, phenolic compounds, and antioxidant activity. HPTLC and HPLC analyses indicated the presence of amino acids, sugars, phenolics, and organic acids in their composition. This study revealed that the supercritical fluid extraction (SFE) process, or its conditions, can modify the fatty acid composition and the presence of minor bioactive compounds in the obtained extracts.
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Affiliation(s)
- Vanessa Aparecida Cruz
- High-Pressure Technology and Natural Products Laboratory (LTAPPN), Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (V.A.C.); (N.J.F.)
| | - Nilson José Ferreira
- High-Pressure Technology and Natural Products Laboratory (LTAPPN), Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (V.A.C.); (N.J.F.)
| | - Elise Le Roux
- Institut de Chimie Organique et Analytique, Université d’Orléans, CNRS, UMR 7311, BP6759, Orléans Cedex 2, 45067 Orléans, France; (E.L.R.); (E.D.)
| | - Emilie Destandau
- Institut de Chimie Organique et Analytique, Université d’Orléans, CNRS, UMR 7311, BP6759, Orléans Cedex 2, 45067 Orléans, France; (E.L.R.); (E.D.)
| | - Alessandra Lopes de Oliveira
- High-Pressure Technology and Natural Products Laboratory (LTAPPN), Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (V.A.C.); (N.J.F.)
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3
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Ambrico A, Larocca V, Trupo M, Martino M, Magarelli RA, Spagnoletta A, Balducchi R. A New Method for Selective Extraction of Torularhodin from Red Yeast Using CO 2-SFE Technique. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04884-9. [PMID: 38386146 DOI: 10.1007/s12010-024-04884-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 02/23/2024]
Abstract
Torularhodin is a dark pink colored carotenoid belonging to the xanthophylls group that can be biologically synthesized by red yeasts, especially by Rhodotorula and Sporobolomyces genera. The growing interest in this molecule is due to its biological activities such as antioxidant, anticholesterolemic, anti-inflammatory, antimicrobial, and anticancer. To satisfy potential commercial markets, numerous methods have been proposed to develop a cost-effective and environmentally friendly downstream process for the purification of torularhodin. However, obtaining high purity products without resorting to the use of toxic solvents, which can leave residues in the final preparations, remains a major challenge. In this context, the present study aimed to develop a new efficient method for the isolation of torularhodin from the red yeast Rhodotorula strain ELP2022 by applying the extraction technique with supercritical CO2 (CO2-SFE) in two sequential steps. In particular, in the first step, the dried lysed biomass of yeast was subjected to the action of CO2 in supercritical conditions (CO2SC) as sole solvent for extraction of apolar carotenoids. In the second step, the residual biomass was subjected to the action of CO2SC using ethanol as a polar co-solvent for the extraction of torularhodin. Both steps were carried out at different operating parameters of temperature (40 and 60 °C) and pressure (from 300 to 500 bar) with a constant CO2 flow of 6 L min-1. Regardless of the operating conditions used, this method allowed to obtain an orange-colored oily extract and a red-colored extract after the first and second step, respectively. In all trials, torularhodin represented no less than 95.2% ± 0.70 of the total carotenoids in the red extracts obtained from the second step. In particular, the best results were obtained by performing both steps at 40 °C and 300 bar, and the maximum percentage of torularhodin achieved was 97.9% ± 0.88. Since there are no data on the selective recovery of torularhodin from red yeast using the SFE technique, this study may be a good starting point to optimize and support the development of industrial production of torularhodin by microbial synthesis. This new method can significantly reduce the environmental impact of torularhodin recovery and can be considered an innovation for which an Italian patent application has been filed. In a circular bioeconomy approach, this method will be validated up to a pilot scale, culturing the strain Rhodotorula spp. ELP2022 on low-cost media derived from agri-food wastes.
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Affiliation(s)
- Alfredo Ambrico
- Department for Sustainability, ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, 75026, Rotondella, Italy
| | - Vincenzo Larocca
- Department for Sustainability, ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, 75026, Rotondella, Italy
| | - Mario Trupo
- Department for Sustainability, ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, 75026, Rotondella, Italy.
| | - Maria Martino
- Department for Sustainability, ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, 75026, Rotondella, Italy
| | - Rosaria Alessandra Magarelli
- Department for Sustainability, ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, 75026, Rotondella, Italy
| | - Anna Spagnoletta
- Department for Sustainability, ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, 75026, Rotondella, Italy
| | - Roberto Balducchi
- Department for Sustainability, ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, 75026, Rotondella, Italy
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Najar-Almanzor CE, Velasco-Iglesias KD, Nunez-Ramos R, Uribe-Velázquez T, Solis-Bañuelos M, Fuentes-Carrasco OJ, Chairez I, García-Cayuela T, Carrillo-Nieves D. Microalgae-assisted green bioremediation of food-processing wastewater: A sustainable approach toward a circular economy concept. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118774. [PMID: 37619389 DOI: 10.1016/j.jenvman.2023.118774] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/23/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
Wastewater disposal is a major environmental issue that pollutes water, causing eutrophication, habitat destruction, and economic impact. In Mexico, food-processing effluents pose a huge environmental threat due to their excessive nutrient content and their large volume discharged every year. Some of the most harmful residues are tequila vinasses, nejayote, and cheese whey. Each liter of tequila generates 13-15 L of vinasses, each kilogram of cheese produces approximately 9 kg of cheese whey, and each kilogram of nixtamalized maize results in the production of 2.5-3.3 L of nejayote. A promising strategy to reduce the contamination derived from wastewater is through microalgae-based wastewater treatment. Microalgae have a high adaptability to hostile environments and they can feed on the nutrients in the effluents to grow. Moreover, to increase the viability, profitability, and value of wastewater treatments, a microalgae biorefinery could be proposed. This review will focus on the circular bioeconomy scheme focused on the simultaneous food-processing wastewater treatment and its use to grow microalgae biomass to produce added-value compounds. This strategy allows for the revalorization of wastewater, decreases contamination of water sources, and produces valuable compounds that promote human health such as phycobiliproteins, carotenoids, omega-3 fatty acids, exopolysaccharides, mycosporine-like amino acids, and as a source of clean energy: biodiesel, biogas, and bioethanol.
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Affiliation(s)
- Cesar E Najar-Almanzor
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Karla D Velasco-Iglesias
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Regina Nunez-Ramos
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Tlalli Uribe-Velázquez
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Minerva Solis-Bañuelos
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Oscar J Fuentes-Carrasco
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Isaac Chairez
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico; Tecnologico de Monterrey, Institute of Advanced Materials for the Sustainable Manufacturing, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Tomás García-Cayuela
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico
| | - Danay Carrillo-Nieves
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201, Zapopan, Jal., Mexico.
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5
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Seeger J, Wendisch VF, Henke NA. Extraction and Purification of Highly Active Astaxanthin from Corynebacterium glutamicum Fermentation Broth. Mar Drugs 2023; 21:530. [PMID: 37888465 PMCID: PMC10608131 DOI: 10.3390/md21100530] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023] Open
Abstract
The marine carotenoid astaxanthin is one of the strongest natural antioxidants and therefore is used in a broad range of applications such as cosmetics or nutraceuticals. To meet the growing market demand, the natural carotenoid producer Corynebacterium glutamicum has been engineered to produce astaxanthin by heterologous expression of genes from the marine bacterium Fulvimarina pelagi. To exploit this promising source of fermentative and natural astaxanthin, an efficient extraction process using ethanol was established in this study. Appropriate parameters for ethanol extraction were identified by screening ethanol concentration (62.5-97.5% v/v), temperature (30-70 °C) and biomass-to-solvent ratio (3.8-19.0 mgCDW/mLsolvent). The results demonstrated that the optimal extraction conditions were: 90% ethanol, 60 °C, and a biomass-to-solvent ratio of 5.6 mgCDW/mLsolvent. In total, 94% of the cellular astaxanthin was recovered and the oleoresin obtained contained 9.4 mg/g astaxanthin. With respect to other carotenoids, further purification of the oleoresin by column chromatography resulted in pure astaxanthin (100%, HPLC). In addition, a 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay showed similar activities compared to esterified astaxanthin from microalgae and a nine-fold higher antioxidative activity than synthetic astaxanthin.
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Affiliation(s)
| | | | - Nadja A. Henke
- Genetics of Prokaryotes, CeBiTec, Bielefeld University, 33615 Bielefeld, Germany
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6
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Chini Zittelli G, Lauceri R, Faraloni C, Silva Benavides AM, Torzillo G. Valuable pigments from microalgae: phycobiliproteins, primary carotenoids, and fucoxanthin. Photochem Photobiol Sci 2023; 22:1733-1789. [PMID: 37036620 DOI: 10.1007/s43630-023-00407-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/03/2023] [Indexed: 04/11/2023]
Abstract
Phycobiliproteins, carotenoids and fucoxanthin are photosynthetic pigments extracted from microalgae and cyanobacteria with great potential biotechnological applications, as healthy food colorants and cosmetics. Phycocyanin possesses a brilliant blue color, with fluorescent properties making it useful as a reagent for immunological essays. The most important source of phycocyanin is the cyanobacterium Arthrospira platensis, however, recently, the Rhodophyta Galdieria sulphuraria has also been identified as such. The main obstacle to the commercialization of phycocyanin is represented by its chemical instability, strongly reducing its shelf-life. Moreover, the high level of purity needed for pharmaceutical applications requires several steps which increase both the production time and cost. Microalgae (Chlorella, Dunaliella, Nannochloropsis, Scenedesmus) produce several light harvesting carotenoids, and are able to manage with oxidative stress, due to their free radical scavenging properties, which makes them suitable for use as source of natural antioxidants. Many studies focused on the selection of the most promising strains producing valuable carotenoids and on their extraction and purification. Among carotenoids produced by marine microalgae, fucoxanthin is the most abundant, representing more than 10% of total carotenoids. Despite the abundance and diversity of fucoxanthin producing microalgae only a few species have been studied for commercial production, the most relevant being Phaeodactylum tricornutum. Due to its antioxidant activity, fucoxanthin can bring various potential benefits to the prevention and treatment of lifestyle-related diseases. In this review, we update the main results achieved in the production, extraction, purification, and commercialization of these important pigments, motivating the cultivation of microalgae as a source of natural pigments.
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Affiliation(s)
- Graziella Chini Zittelli
- Istituto per la Bioeconomia, CNR, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Florence, Italy
| | - Rosaria Lauceri
- Istituto di Ricerca sulle Acque, CNR, Sede Di Verbania, Largo Tonolli 50, 28922, Verbania, Italy
| | - Cecilia Faraloni
- Istituto per la Bioeconomia, CNR, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Florence, Italy
| | - Ana Margarita Silva Benavides
- Centro de Investigación en Ciencias del Mar Y Limnologίa, Universidad de Costa Rica, San Pedro, San José, 2060, Costa Rica
- Escuela de Biologia, Universidad de Costa Rica, San Pedro, San José, 2060, Costa Rica
| | - Giuseppe Torzillo
- Istituto per la Bioeconomia, CNR, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Florence, Italy.
- Centro de Investigación en Ciencias del Mar Y Limnologίa, Universidad de Costa Rica, San Pedro, San José, 2060, Costa Rica.
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7
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Papapostolou H, Kachrimanidou V, Alexandri M, Plessas S, Papadaki A, Kopsahelis N. Natural Carotenoids: Recent Advances on Separation from Microbial Biomass and Methods of Analysis. Antioxidants (Basel) 2023; 12:antiox12051030. [PMID: 37237896 DOI: 10.3390/antiox12051030] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/20/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Biotechnologically produced carotenoids occupy an important place in the scientific research. Owing to their role as natural pigments and their high antioxidant properties, microbial carotenoids have been proposed as alternatives to their synthetic counterparts. To this end, many studies are focusing on their efficient and sustainable production from renewable substrates. Besides the development of an efficient upstream process, their separation and purification as well as their analysis from the microbial biomass confers another important aspect. Currently, the use of organic solvents constitutes the main extraction process; however, environmental concerns along with potential toxicity towards human health necessitate the employment of "greener" techniques. Hence, many research groups are focusing on applying emerging technologies such as ultrasounds, microwaves, ionic liquids or eutectic solvents for the separation of carotenoids from microbial cells. This review aims to summarize the progress on both the biotechnological production of carotenoids and the methods for their effective extraction. In the framework of circular economy and sustainability, the focus is given on green recovery methods targeting high-value applications such as novel functional foods and pharmaceuticals. Finally, methods for carotenoids identification and quantification are also discussed in order to create a roadmap for successful carotenoids analysis.
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Affiliation(s)
- Harris Papapostolou
- Department of Food Science and Technology, Ionian University, 28100 Argostoli, Greece
| | | | - Maria Alexandri
- Department of Food Science and Technology, Ionian University, 28100 Argostoli, Greece
| | - Stavros Plessas
- Laboratory of Food Processing, Faculty of Agriculture Development, Democritus University of Thrace, 68200 Orestiada, Greece
| | - Aikaterini Papadaki
- Department of Food Science and Technology, Ionian University, 28100 Argostoli, Greece
| | - Nikolaos Kopsahelis
- Department of Food Science and Technology, Ionian University, 28100 Argostoli, Greece
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8
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Gherabli A, Grimi N, Lemaire J, Vorobiev E, Lebovka N. Extraction of Valuable Biomolecules from the Microalga Haematococcus pluvialis Assisted by Electrotechnologies. Molecules 2023; 28:2089. [PMID: 36903334 PMCID: PMC10004699 DOI: 10.3390/molecules28052089] [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] [Received: 01/30/2023] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
The freshwater microalga Haematococcus pluvialis is well known as the cell factory for natural astaxanthin, which composes up to 4-7% of its total dry weight. The bioaccumulation of astaxanthin in H. pluvialis cysts seems to be a very complex process that depends on different stress conditions during its cultivation. The red cysts of H. pluvialis develop thick and rigid cell walls under stress growing conditions. Thus, the biomolecule extraction requires general cell disruption technologies to reach a high recovery rate. This short review provides an analysis of the different steps in H. pluvialis's up and downstream processing including cultivation and harvesting of biomass, cell disruption, extraction and purification techniques. Useful information on the structure of H. pluvialis's cells, biomolecular composition and properties and the bioactivity of astaxanthin is collected. Special emphasis is given to the recent progress in application of different electrotechnologies during the growth stages and for assistance of the recovery of different biomolecules from H. pluvialis.
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Affiliation(s)
- Adila Gherabli
- Université de technologie de Compiègne, UTC/ESCOM, TIMR (Transformations Intégrées de la Matière Renouvelable), 60200 Compiègne, France
- CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), Université Paris-Saclay, 3 Rue des Rouges Terres, 51110 Pomacle, France
| | - Nabil Grimi
- Université de technologie de Compiègne, UTC/ESCOM, TIMR (Transformations Intégrées de la Matière Renouvelable), 60200 Compiègne, France
| | - Julien Lemaire
- CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), Université Paris-Saclay, 3 Rue des Rouges Terres, 51110 Pomacle, France
| | - Eugène Vorobiev
- Université de technologie de Compiègne, UTC/ESCOM, TIMR (Transformations Intégrées de la Matière Renouvelable), 60200 Compiègne, France
| | - Nikolai Lebovka
- Université de technologie de Compiègne, UTC/ESCOM, TIMR (Transformations Intégrées de la Matière Renouvelable), 60200 Compiègne, France
- Laboratory of Physical Chemistry of Disperse Minerals, F. D. Ovcharenko Institute of Biocolloidal Chemistry, NAS of Ukraine, 03142 Kyiv, Ukraine
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9
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Tzima S, Georgiopoulou I, Louli V, Magoulas K. Recent Advances in Supercritical CO 2 Extraction of Pigments, Lipids and Bioactive Compounds from Microalgae. Molecules 2023; 28:molecules28031410. [PMID: 36771076 PMCID: PMC9920624 DOI: 10.3390/molecules28031410] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/19/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
Supercritical CO2 extraction is a green method that combines economic and environmental benefits. Microalgae, on the other hand, is a biomass in abundance, capable of providing a vast variety of valuable compounds, finding applications in the food industry, cosmetics, pharmaceuticals and biofuels. An extensive study on the existing literature concerning supercritical fluid extraction (SFE) of microalgae has been carried out focusing on carotenoids, chlorophylls, lipids and fatty acids recovery, as well as the bioactivity of the extracts. Moreover, kinetic models used to describe SFE process and experimental design are included. Finally, biomass pretreatment processes applied prior to SFE are mentioned, and other extraction methods used as benchmarks are also presented.
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10
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Patel AK, Tambat VS, Chen CW, Chauhan AS, Kumar P, Vadrale AP, Huang CY, Dong CD, Singhania RR. Recent advancements in astaxanthin production from microalgae: A review. BIORESOURCE TECHNOLOGY 2022; 364:128030. [PMID: 36174899 DOI: 10.1016/j.biortech.2022.128030] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Microalgae have emerged as the best source of high-value astaxanthin producers. Algal astaxanthin possesses numerous bioactivities hence the rising demand for several health applications and is broadly used in pharmaceuticals, aquaculture, health foods, cosmetics, etc. Among several low-priced synthetic astaxanthin, natural astaxanthin is still irreplaceable for human consumption and food-additive uses. This review highlights the recent development in production enhancement and cost-effective extraction techniques that may apply to large-scale astaxanthin biorefinery. Primarily, the biosynthetic pathway of astaxanthin is elaborated with the key enzymes involved in the metabolic process. Moreover, discussed the latest astaxanthin enhancement strategies mainly including chemicals as product inducers and byproducts inhibitors. Later, various physical, chemical, and biological cell disruption methods are compared for cell disruption efficiency, and astaxanthin extractability. The aim of this review is to provide a comprehensive review of advancements in astaxanthin research covering scalable upstream and downstream astaxanthin bioproduction aspects.
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Affiliation(s)
- Anil Kumar Patel
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India
| | - Vaibhav Sunil Tambat
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India
| | - Chiu-Wen Chen
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Sustainable Environment Research Centre, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Ajeet Singh Chauhan
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India
| | - Prashant Kumar
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India
| | - Akash Pralhad Vadrale
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Chun-Yung Huang
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Cheng-Di Dong
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
| | - Reeta Rani Singhania
- Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India; Sustainable Environment Research Centre, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
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11
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The Role of Astaxanthin as a Nutraceutical in Health and Age-Related Conditions. Molecules 2022; 27:molecules27217167. [PMID: 36363994 PMCID: PMC9655540 DOI: 10.3390/molecules27217167] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 01/24/2023] Open
Abstract
The current review provides an up-to-date analysis of scientific data on astaxanthin (ASX) sources and experimental studies on its health benefits as a potent antioxidant in the aging process. ASX is a liposoluble carotenoid nutrient and reddish-orange pigment, naturally synthesized by numerous microalgae, yeasts, and bacteria as secondary metabolites. Provides a reddish hue to redfish and shellfish flesh that feed on ASX-producing microorganisms. The microalga Haematococcus pluvialis is the most important source for its industrial bioproduction. Due to its strong antioxidant properties, numerous investigations reported that natural ASX is a more significant antioxidant agent than other antioxidants, such as vitamin C, vitamin E, and β-carotene. Furthermore, several data show that ASX possesses important nutraceutical applications and health benefits, especially in healthy aging processes. However, further studies are needed for a deeper understanding of the potential mechanisms through which ASX could lead to its effective role in the healthy aging process, such as supporting brain health and skin homeostasis. This review highlights the current investigations on the effective role of ASX in oxidative stress, aging mechanisms, skin physiology, and central nervous system functioning, and shows the potential clinical implications related to its consumption.
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12
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Xu R, Zhang L, Yu W, Liu J. A strategy for interfering with the formation of thick cell walls in Haematococcus pluvialis by down-regulating the mannan synthesis pathway. BIORESOURCE TECHNOLOGY 2022; 362:127783. [PMID: 35970497 DOI: 10.1016/j.biortech.2022.127783] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
The challenges associated with effective cell wall disruption remain an important bottleneck that has restricted efforts to extract astaxanthin from Haematococcus pluvialis. Here, available transcriptomic data and an Agrobacterium tumefaciens-mediated transformation system were used to establish an H. pluvialis strain in which the key cell wall formation-related enzyme α-1,6-mannosyltransferase (HpOCH1) was downregulated in an effort to thin cell walls and thereby simplify the astaxanthin extraction process. The cell wall remodeling activity observed in these HpOch1 knockdown H. pluvialis cells resulted in dramatic reductions in the mannan organization and protective ability of the established cell walls. The cell fragmentation rate increased by 58% in HpOch1- group relative to the control group. Critically, astaxanthin synthesis was not altered in the HpOch1 knockdown cells. Overall, this study highlights a novel technical approach to artificial cell wall thinning, offering a foundation for further efforts to more effectively leverage the astaxanthin resources of H. pluvialis.
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Affiliation(s)
- Ran Xu
- CAS and Shandong Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Litao Zhang
- CAS and Shandong Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Wenjie Yu
- CAS and Shandong Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 10049, China
| | - Jianguo Liu
- CAS and Shandong Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Shandong Engineering Technology Collaborative Innovation Center of Edible Microalgae, Qingdao Langyatai Group Co., Ltd., Qingdao 266400, China.
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13
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Ghosh S, Sarkar T, Chakraborty R, Shariati MA, Simal-Gandara J. Nature's palette: An emerging frontier for coloring dairy products. Crit Rev Food Sci Nutr 2022; 64:1508-1552. [PMID: 36066466 DOI: 10.1080/10408398.2022.2117785] [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: 11/03/2022]
Abstract
Consumers all across the world are looking for the most delectable and appealing foods, while also demanding products that are safer, more nutritious, and healthier. Substitution of synthetic colorants with natural colorants has piqued consumer and market interest in recent years. Due to increasing demand, extensive research has been conducted to find natural and safe food additives, such as natural pigments, that may have health benefits. Natural colorants are made up of a variety of pigments, many of which have significant biological potential. Because of the promising health advantages, natural colorants are gaining immense interest in the dairy industry. This review goes over the use of various natural colorants in dairy products which can provide desirable color as well as positive health impacts. The purpose of this review is to provide an in-depth look into the field of food (natural or synthetic) colorants applied in dairy products as well as their potential health benefits, safety, general trends, and future prospects in food science and technology. In this paper, we listed a plethora of applications of natural colorants in various milk-based products.
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Affiliation(s)
- Susmita Ghosh
- Department of Food Technology and Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Tanmay Sarkar
- Malda Polytechnic, West Bengal State Council of Technical Education, Government of West Bengal, Malda, India
| | - Runu Chakraborty
- Department of Food Technology and Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Mohammad Ali Shariati
- Research Department, K. G. Razumovsky Moscow State University of Technologies and Management (The First Cossack University), Moscow, Russian Federation
- Department of Scientific Research, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Analytical Chemistry and Food Science Department, Faculty of Science, Universidade de Vigo, Ourense, E32004, Spain
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14
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Separation and Concentration of Astaxanthin and Lutein from Microalgae Liquid Extracts Using Magnetic Nanoparticles. MAGNETOCHEMISTRY 2022. [DOI: 10.3390/magnetochemistry8080080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The downstream processing of natural active molecules remains the most significant cost in the production pipeline. This considerable cost is largely attributed to rigorous chromatographic purification protocols. In an ongoing effort to abate the dependence on chromatography in downstream processing, alternative affinity matrices in the form of magnetic particles (e.g., iron oxide) have emerged as viable candidates. Nevertheless, biotechnological applications of iron oxide particles are still confined to the research level or for low-throughput clinical applications. Herein, we describe an efficient, quick, and environmentally friendly method for the isolation of astaxanthin and lutein, two carotenoids with very similar chemical structure, from extracts of the microalga Haematococcus pluvialis. The technology proposed, named Selective Magnetic Separation (SMS), is based on the use of magnetic materials carrying affinity ligands that bind carotenoids and is applied as second step of purification. The method, thanks to functionalized magnetic nanoparticles, reduces the use of organic or toxic solvents. In the present work, we examined the most efficient binding conditions such as temperature, magnetic nanoparticles concentration, and elution time, as well as their effects on carotenoids recovery, with the aim to improve the non-covalent binding between the ligand (amines) and astaxanthin/lutein. Our initial results clearly showed that it is possible to use magnetic separation as an alternative to chromatography to isolate important and valuable compounds.
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15
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Mussagy CU, Pereira JFB, Santos-Ebinuma VC, Pessoa A, Raghavan V. Insights into using green and unconventional technologies to recover natural astaxanthin from microbial biomass. Crit Rev Food Sci Nutr 2022; 63:11211-11225. [PMID: 35766952 DOI: 10.1080/10408398.2022.2093326] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Microorganisms such as bacteria, microalgae and fungi, are natural and rich sources of several valuable bioactive antioxidant's compounds, including carotenoids. Among the carotenoids with antioxidant properties, astaxanthin can be highlighted due to its pharmaceutical, feed, food, cosmetic and biotechnological applications. The best-known producers of astaxanthin are yeast and microalgae cells that biosynthesize this pigment intracellularly, requiring efficient and sustainable downstream procedures for its recovery. Conventional multi-step procedures usually involve the consumption of large amounts of volatile organic compounds (VOCs), which are regarded as toxic and hazardous chemicals. Considering these environmental issues, this review is focused on revealing the potential of unconventional extraction procedures [viz., Supercritical Fluid Extraction (SFE), Ultrasound-Assisted Extraction (UAE), Microwave-Assisted Extraction (MAE), High-Pressure Homogenization (HPH)] combined with alternative green solvents (biosolvents, eutectic solvents and ionic liquids) for the recovery of microbial-based astaxanthin from microalgae (such as Haematococcus pluvialis) and yeast (such as Phaffia rhodozyma) cells. The principal advances in the area, process bottlenecks, solvent selection and strategies to improve the recovery of microbial astaxanthin are emphasized. The promising recovery yields using these environmentally friendly procedures in lab-scale are good indications and directions for their effective use in biotechnological processes for the production of commercial feed and food ingredients like astaxanthin.
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Affiliation(s)
- Cassamo U Mussagy
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | - Jorge F B Pereira
- Department of Chemical Engineering, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, Univ. Coimbra, CIEPQPF, Coimbra, Portugal
| | - Valéria C Santos-Ebinuma
- Department of Engineering of Bioprocesses and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Adalberto Pessoa
- Department of Pharmaceutical-Biochemical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Vijaya Raghavan
- Department of Bioresource Engineering, Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Quebec, Canada
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16
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Methodological Optimization of Supercritical Fluid Extraction of Valuable Bioactive Compounds from the Acidophilic Microalga Coccomyxa onubensis. Antioxidants (Basel) 2022; 11:antiox11071248. [PMID: 35883739 PMCID: PMC9312109 DOI: 10.3390/antiox11071248] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023] Open
Abstract
Microalgae grow in diverse environments and possess a great biotechnological potential as they contain useful bioactive compounds. These bioactive compounds can be obtained by selective and energy-efficient extraction methods. Various industries are using the supercritical fluid extraction (SFE) method to extract these valuable bioactive compounds. Hence, for the first time, we evaluated the effects of SFE on the recovery of bioactive and antioxidant compounds using Coccomyxa onubensis, a eukaryotic acidophilic microalga of potential relevance which can be used in the field of nutraceutical and functional foods. It was isolated from the Tinto River (Pyritic Belt, Huelva, Spain), a mining region in Spain. Variables such as extraction yield, lutein purity (LP) and recovery (LR), total phenols, and antioxidant capacity (Trolox equivalents antioxidant capacity method) were studied using a Box–Behnken design based on a response surface methodology along with the overall extraction curve fitted to a spline linear model. The effects of temperature (30, 50, and 70 °C), pressure (25, 40, and 55 MPa), and the percentage of co-solvent (0, 25%, and 50% v/v ethanol) on SFE were analyzed, resulting in the co-solvent and temperature as the most significant factors followed by the pressure. Under 70 °C, 40 MPa, and 50% v/v ethanol, C. onubensis reached a maximum of 66.98% of LR. The extracts were richest in total phenols and showed the maximum antioxidant activity (36.08 mg GAEs/g extracts and 2.237 mmol TE/g extracts, respectively) under similar pressure and co-solvent percentage values and different temperatures (30 and 70 °C, respectively). The extracts obtained in this study may have potential applications in the food, nutraceutical, and cosmetic industries. SFE is a highly efficient method to valorize microorganisms living in extreme environments, which are so far unexplored using green extraction methods.
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17
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Koopmann IK, Möller S, Elle C, Hindersin S, Kramer A, Labes A. Optimization of Astaxanthin Recovery in the Downstream Process of Haematococcus pluvialis. Foods 2022; 11:1352. [PMID: 35564075 PMCID: PMC9105871 DOI: 10.3390/foods11091352] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 02/04/2023] Open
Abstract
Astaxanthin derived from Haematococcus pluvialis is a valuable metabolite applied in a wide range of products. Its extraction depends on a sophisticated series of downstream process steps, including harvesting, disruption, drying, and extraction, of which some are dependent on each other. To determine the processes that yield maximum astaxanthin recovery, bead milling, high-pressure homogenization, and no disruption of H. pluvialis biomass were coupled with spray-drying, vacuum-drying, and freeze-drying in all possible combinations. Eventually, astaxanthin was extracted using supercritical CO2. Optimal conditions for spray-drying were evaluated through the design of experiments and standard least squares regression (feed rate: 5.8 mL/min, spray gas flow: 400 NL/h, inlet temperature: 180 °C). Maximal astaxanthin recoveries were yielded using high-pressure homogenization and lyophilization (85.4%). All combinations of milling or high-pressure homogenization and lyophilization or spray-drying resulted in similar recoveries. Bead milling and spray-drying repeated with a larger spray-dryer resulted in similar astaxanthin recoveries compared with the laboratory scale. Smaller astaxanthin recoveries after the extraction of vacuum-dried biomass were mainly attributed to textural changes. Evaluation of these results in an economic context led to a recommendation for bead milling and spray-drying prior to supercritical CO2 extraction to achieve the maximum astaxanthin recoveries.
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Affiliation(s)
- Inga K. Koopmann
- ZAiT, Bio and Food Technology, Faculty Energy and Biotechnology, Flensburg University of Applied Sciences, 24943 Flensburg, Germany; (I.K.K.); (S.M.); (A.K.)
- Sea & Sun Technology GmbH, 24610 Trappenkamp, Germany; (C.E.); (S.H.)
| | - Simone Möller
- ZAiT, Bio and Food Technology, Faculty Energy and Biotechnology, Flensburg University of Applied Sciences, 24943 Flensburg, Germany; (I.K.K.); (S.M.); (A.K.)
- Sea & Sun Technology GmbH, 24610 Trappenkamp, Germany; (C.E.); (S.H.)
| | - Clemens Elle
- Sea & Sun Technology GmbH, 24610 Trappenkamp, Germany; (C.E.); (S.H.)
| | - Stefan Hindersin
- Sea & Sun Technology GmbH, 24610 Trappenkamp, Germany; (C.E.); (S.H.)
| | - Annemarie Kramer
- ZAiT, Bio and Food Technology, Faculty Energy and Biotechnology, Flensburg University of Applied Sciences, 24943 Flensburg, Germany; (I.K.K.); (S.M.); (A.K.)
| | - Antje Labes
- ZAiT, Bio and Food Technology, Faculty Energy and Biotechnology, Flensburg University of Applied Sciences, 24943 Flensburg, Germany; (I.K.K.); (S.M.); (A.K.)
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18
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Jamalluddin NA, Ismail N, Mutalib SRA, Sikin AM. Sc-CO 2 extraction of fish and fish by-products in the production of fish oil and enzyme. BIORESOUR BIOPROCESS 2022; 9:21. [PMID: 38647764 PMCID: PMC10992331 DOI: 10.1186/s40643-022-00509-3] [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: 12/06/2021] [Accepted: 02/23/2022] [Indexed: 11/10/2022] Open
Abstract
Supercritical carbon dioxide (Sc-CO2) is an alternative tool to extract lipid for the production of fish oil and enzyme from fish by-products (FBPs). In the application of Sc-CO2, this review covers sample preparation, lipid extraction operation, and characterization of fish oil and enzyme as final products. Generally, the fish samples with moisture content less than 20% and particle size less than 5 mm are considered before lipid extraction with Sc-CO2. Sc-CO2 parameters, such as pressure (P), temperature (T), extraction time (text), and flow rate (F), for simultaneous recovery of fish oil, protein, and enzyme were found to be less severe (P: 10.3-25 MPa; T: 25-45 °C, text: 20-150 min; F: 3-50 g/min) than the extraction of fish oil alone (P: 10-40 Mpa; T: 35-80 °C; text: 30-360 min; F: 1-3000 g/min). The enzyme from the Sc-CO2 defatted sample showed higher activity up to 45 U/mg due to lower denaturation of protein as compared to the organic solvent treated sample albeit both samples having similar pH (6-10) and temperature stability (20-60 °C). Overall, mild extraction of lipid from FBPs using Sc-CO2 is effective for the production of enzymes suitable in various industrial applications. Also, fish oil as a result of extraction can be produced as a health product with high polyunsaturated fatty acids (PUFAs) and low contamination of heavy metals.
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Affiliation(s)
- Nur Anati Jamalluddin
- Department of Food Science and Technology, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor D.E, Malaysia
| | - Normah Ismail
- Department of Food Science and Technology, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor D.E, Malaysia
| | - Siti Roha Ab Mutalib
- Department of Food Science and Technology, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor D.E, Malaysia
| | - Adi Md Sikin
- Department of Food Science and Technology, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor D.E, Malaysia.
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19
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Supercritical CO2 extraction of aqueous suspensions of disrupted Haematococcus pluvialis cysts. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2021.105392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Udayan A, Pandey AK, Sirohi R, Sreekumar N, Sang BI, Sim SJ, Kim SH, Pandey A. Production of microalgae with high lipid content and their potential as sources of nutraceuticals. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2022; 22:1-28. [PMID: 35095355 PMCID: PMC8783767 DOI: 10.1007/s11101-021-09784-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/07/2021] [Indexed: 05/05/2023]
Abstract
In the current global scenario, the world is under a serious dilemma due to the increasing human population, industrialization, and urbanization. The ever-increasing need for fuels and increasing nutritional problems have made a serious concern on the demand for nutrients and renewable and eco-friendly fuel sources. Currently, the use of fossil fuels is creating ecological and economic problems. Microalgae have been considered as a promising candidate for high-value metabolites and alternative renewable energy sources. Microalgae offer several advantages such as rapid growth rate, efficient land utilization, carbon dioxide sequestration, ability to cultivate in wastewater, and most importantly, they do not participate in the food crop versus energy crop dilemma or debate. An efficient microalgal biorefinery system for the production of lipids and subsequent byproduct for nutraceutical applications could well satisfy the need. But, the current microalgal cultivation systems for the production of lipids and nutraceuticals do not offer techno-economic feasibility together with energy and environmental sustainability. This review article has its main focus on the production of lipids and nutraceuticals from microalgae, covering the current strategies used for lipid production and the major high-value metabolites from microalgae and their nutraceutical importance. This review also provides insights on the future strategies for enhanced microalgal lipid production and subsequent utilization of microalgal biomass. GRAPHICAL ABSTRACT
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Affiliation(s)
- Aswathy Udayan
- Department of Chemical Engineering, Hanyang University, Seoul, South Korea
| | - Ashutosh Kumar Pandey
- School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
| | - Ranjna Sirohi
- Department of Chemical and Biological Engineering, Korea University, Seoul, South Korea
- Centre for Energy and Environmental Sustainability, Lucknow, Uttar Pradesh 226 029 India
| | - Nidhin Sreekumar
- Accubits Invent, Accubits Technologies Inc., Thiruvananthapuram, Kerala 695 004 India
| | - Byoung-In Sang
- Department of Chemical Engineering, Hanyang University, Seoul, South Korea
| | - Sung Jun Sim
- Department of Chemical and Biological Engineering, Korea University, Seoul, South Korea
| | - Sang Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
| | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow, Uttar Pradesh 226 029 India
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh 226 001 India
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21
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Jafari Z, Bigham A, Sadeghi S, Dehdashti SM, Rabiee N, Abedivash A, Bagherzadeh M, Nasseri B, Karimi-Maleh H, Sharifi E, Varma RS, Makvandi P. Nanotechnology-Abetted Astaxanthin Formulations in Multimodel Therapeutic and Biomedical Applications. J Med Chem 2022; 65:2-36. [PMID: 34919379 PMCID: PMC8762669 DOI: 10.1021/acs.jmedchem.1c01144] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Indexed: 12/13/2022]
Abstract
Astaxanthin (AXT) is one of the most important fat-soluble carotenoids that have abundant and diverse therapeutic applications namely in liver disease, cardiovascular disease, cancer treatment, protection of the nervous system, protection of the skin and eyes against UV radiation, and boosting the immune system. However, due to its intrinsic reactivity, it is chemically unstable, and therefore, the design and production processes for this compound need to be precisely formulated. Nanoencapsulation is widely applied to protect AXT against degradation during digestion and storage, thus improving its physicochemical properties and therapeutic effects. Nanocarriers are delivery systems with many advantages─ease of surface modification, biocompatibility, and targeted drug delivery and release. This review discusses the technological advancement in nanocarriers for the delivery of AXT through the brain, eyes, and skin, with emphasis on the benefits, limitations, and efficiency in practice.
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Affiliation(s)
- Zohreh Jafari
- Department
of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 19857-17443 Tehran, Iran
| | - Ashkan Bigham
- Institute
of Polymers, Composites and Biomaterials
- National Research Council (IPCB-CNR), Viale J.F. Kennedy 54 - Mostra D’Oltremare
pad. 20, 80125 Naples, Italy
| | - Sahar Sadeghi
- Department
of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 19857-17443 Tehran, Iran
| | - Sayed Mehdi Dehdashti
- Cellular
and Molecular Biology Research Center, Shahid
Beheshti University of Medical Sciences, 19857-17443 Tehran, Iran
| | - Navid Rabiee
- Department
of Chemistry, Sharif University of Technology, 11155-9161 Tehran, Iran
- Department
of Physics, Sharif University of Technology, 11155-9161 Tehran, Iran
- School
of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Alireza Abedivash
- Department
of Basic Sciences, Sari Agricultural Sciences
and Natural Resources University, 48181-68984 Sari, Iran
| | - Mojtaba Bagherzadeh
- Department
of Chemistry, Sharif University of Technology, 11155-9161 Tehran, Iran
| | - Behzad Nasseri
- Department
of Medical Biotechnology, Faculty of Advance Medical Sciences, Tabriz University of Medical Sciences, 51664 Tabriz, Iran
| | - Hassan Karimi-Maleh
- School
of Resources and Environment, University
of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Avenue, 610054 Chengdu, PR China
- Department
of Chemical Engineering, Laboratory of Nanotechnology,
Quchan University of Technology, 94771-67335 Quchan, Iran
- Department
of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein Campus,
2028, 2006 Johannesburg, South Africa
| | - Esmaeel Sharifi
- Institute
of Polymers, Composites and Biomaterials
- National Research Council (IPCB-CNR), Viale J.F. Kennedy 54 - Mostra D’Oltremare
pad. 20, 80125 Naples, Italy
- Department
of Tissue Engineering and Biomaterials, School of Advanced Medical
Sciences and Technologies, Hamadan University
of Medical Sciences, 6517838736 Hamadan, Iran
| | - Rajender S. Varma
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Pooyan Makvandi
- Centre for
Materials Interfaces, Istituto Italiano
di Tecnologia, viale
Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
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22
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Kim B, Youn Lee S, Lakshmi Narasimhan A, Kim S, Oh YK. Cell disruption and astaxanthin extraction from Haematococcus pluvialis: Recent advances. BIORESOURCE TECHNOLOGY 2022; 343:126124. [PMID: 34653624 DOI: 10.1016/j.biortech.2021.126124] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
The green microalga Haematococcus pluvialis is an excellent source of astaxanthin, a powerful antioxidant widely used in cosmetics, aquaculture, health foods, and pharmaceuticals. This review explores recent developments in cell disruption and astaxanthin extraction techniques applied using H. pluvialis as a model species for large-scale algal biorefinery. Notably, this alga develops a unique cyst-like cell with a rigid three-layered cell wall during astaxanthin accumulation (∼4% of dry weight) under stress. The thick (∼2 µm), acetolysis-resistant cell wall forms the strongest barrier to astaxanthin extraction. Various physical, chemical, and biological cell disruption methods were discussed and compared based on theoretical mechanisms, biomass status (wet, dry, and live), cell-disruption efficacy, astaxanthin extractability, cost, scalability, synergistic combinations, and impact on the stress-sensitive astaxanthin content. The challenges and future prospects of the downstream processes for the sustainable and economic development of advanced H. pluvialis biorefineries are also outlined.
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Affiliation(s)
- Bolam Kim
- School of Chemical Engineering, and Institute for Environment & Energy, Pusan National University, Busan 46241, Republic of Korea
| | - Soo Youn Lee
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research, Gwangju 61003, Republic of Korea
| | - Aditya Lakshmi Narasimhan
- School of Chemical Engineering, and Institute for Environment & Energy, Pusan National University, Busan 46241, Republic of Korea
| | - Sangui Kim
- School of Chemical Engineering, and Institute for Environment & Energy, Pusan National University, Busan 46241, Republic of Korea
| | - You-Kwan Oh
- School of Chemical Engineering, and Institute for Environment & Energy, Pusan National University, Busan 46241, Republic of Korea.
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Abstract
Tomato processing leads to the production of considerable amounts of residues, mainly in the form of tomato skins, seeds and vascular tissues, which still contain bioactive molecules of interest for food, pharmaceutical and nutraceutical industries. These include carotenoids, such as lycopene and β-carotene, tocopherols and sitosterols, among others. Supercritical fluid extraction is well positioned for the valorization of tomato residues prior to disposal, because it remains an environmentally safe extraction process, especially when using carbon dioxide as the solvent. In this article, we provide an extensive literature overview of the research on the supercritical fluid extraction of tomato residues. We start by identifying the most relevant extractables present in tomatoes (e.g., lycopene) and their main bioactivities. Then, the main aspects affecting the extraction performance are covered, starting with the differences between tomato matrixes (e.g., seeds, skins and pulp) and possible pretreatments to enhance extraction (e.g., milling, drying and enzymatic digestion). Finally, the effects of extraction conditions, such as pressure, temperature, cosolvent, flow rate and time, are discussed.
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Singh S, Verma DK, Thakur M, Tripathy S, Patel AR, Shah N, Utama GL, Srivastav PP, Benavente-Valdés JR, Chávez-González ML, Aguilar CN. Supercritical fluid extraction (SCFE) as green extraction technology for high-value metabolites of algae, its potential trends in food and human health. Food Res Int 2021; 150:110746. [PMID: 34865764 DOI: 10.1016/j.foodres.2021.110746] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 10/01/2021] [Accepted: 10/06/2021] [Indexed: 02/07/2023]
Abstract
Application of high-value algal metabolites (HVAMs) in cosmetics, additives, pigments, foods and medicines are very important. These HVAMs can be obtained from the cultivation of micro- and macro-algae. These metabolites can benefit human and animal health in a physiological and nutritional manner. However, because of conventional extraction methods and their energy and the use of pollutant solvents, the availability of HVAMs from algae remains insufficient. Receiving their sustainability and environmental benefits have recently made green extraction technologies for HVAM extractions more desirable. But very little information is available about the technology of green extraction of algae from these HVAM. This review, therefore, highlights the supercritical fluid extraction (SCFE) as principal green extraction technologyand theirideal parameters for extracting HVAMs. In first, general information is provided concerning the HVAMs and their components of macro and micro origin. The review also includes a description of SCFE technology's properties, instrumentation operation, solvents used, and the merits and demerits. Moreover, there are several HVAMs associated with their numerous high-level biological activities which include high-level antioxidant, anti-inflammatory, anticancer and antimicrobial activity and have potential health-beneficial effects in humans since they are all HVAMs, such as foods and nutraceuticals. Finally, it provides future insights, obstacles, and suggestions for selecting the right technologies for extraction.
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Affiliation(s)
- Smita Singh
- Department of Nutrition and Dietetics, University Institute of Applied Health Sciences, Chandigarh University, Chandigarh 140413, Punjab, India.
| | - Deepak Kumar Verma
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India.
| | - Mamta Thakur
- Department of Food Technology, School of Sciences, ITM University, Gwalior 474001, Madhya Pradesh, India.
| | - Soubhagya Tripathy
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Ami R Patel
- Division of Dairy Microbiology, Mansinhbhai Institute of Dairy and Food Technology-MIDFT, Dudhsagar Dairy Campus, Mehsana 384 002, Gujarat, India
| | - Nihir Shah
- Division of Dairy Microbiology, Mansinhbhai Institute of Dairy and Food Technology-MIDFT, Dudhsagar Dairy Campus, Mehsana 384 002, Gujarat, India
| | - Gemilang Lara Utama
- Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Sumedang 45363, Indonesia; Center for Environment and Sustainability Science, Universitas Padjadjaran, Bandung 40132, Indonesia
| | - Prem Prakash Srivastav
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Juan Roberto Benavente-Valdés
- Bioprocesses and Bioproducts Research Group, Food Research Department, School of Chemistry, Autonomous University of Coahuila, Saltillo Campus, 25280 Coahuila, Mexico
| | - Mónica L Chávez-González
- Bioprocesses and Bioproducts Research Group, Food Research Department, School of Chemistry, Autonomous University of Coahuila, Saltillo Campus, 25280 Coahuila, Mexico
| | - Cristobal Noe Aguilar
- Bioprocesses and Bioproducts Research Group, Food Research Department, School of Chemistry, Autonomous University of Coahuila, Saltillo Campus, 25280 Coahuila, Mexico.
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Reza AHMM, Zhu X, Qin J, Tang Y. Microalgae-Derived Health Supplements to Therapeutic Shifts: Redox-Based Study Opportunities with AIE-Based Technologies. Adv Healthc Mater 2021; 10:e2101223. [PMID: 34468087 DOI: 10.1002/adhm.202101223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/16/2021] [Indexed: 12/14/2022]
Abstract
Reactive oxygen species (ROS) are highly reactive molecules, serve the normal signaling in different cell types. Targeting ROS as the chemical signals, different stress based strategies have been developed to synthesis different anti-inflammatory molecules in microalgae. These molecules could be utilized as health supplements in human. To provoke the ROS-mediated defence systems, their connotation with the associated conditions must be well understood, therefore, proper tools for studying ROS in natural state are essential. The in vivo detection of ROS with phosphorescent probes offers promising opportunities to study these molecules in a non-invasive manner. Most of the common problems in the traditional fluorescent probes are lower photostability, excitation intensity, slow responsiveness, and the microenvironment that challenge their performance. Some ROS-specific aggregationinduced emission luminogens (AIEgens) with pronounced spatial and temporal resolution have recently demonstrated high selectivity, rapid responsiveness, and efficacies to resolve the aggregation-caused quenching issues. The nanocomposites of some AIE-photosensitizers can also improve the ROS-mediated photodynamic therapy. These AIEgens could be used to induce bioactive components in microalgae through altering the ROS signaling, therefore are more auspicious for biomedical research. This study reviews the prospects of AIEgen-based technologies to understand the ROS mediated bio-physiological processes in microalgae for better healthcare benefits.
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Affiliation(s)
- A. H. M. Mohsinul Reza
- College of Science and Engineering Flinders University South Australia 5042 Australia
- Institute for NanoScale Science and Technology Medical Device Research Institute College of Science and Engineering Flinders University South Australia 5042 Australia
| | - Xiaochen Zhu
- College of Science and Engineering Flinders University South Australia 5042 Australia
- Institute for NanoScale Science and Technology Medical Device Research Institute College of Science and Engineering Flinders University South Australia 5042 Australia
| | - Jianguang Qin
- College of Science and Engineering Flinders University South Australia 5042 Australia
| | - Youhong Tang
- College of Science and Engineering Flinders University South Australia 5042 Australia
- Institute for NanoScale Science and Technology Medical Device Research Institute College of Science and Engineering Flinders University South Australia 5042 Australia
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Berberis Vulgaris Fruit: Determination of Phenolic Compounds in Extracts Obtained by Supercritical CO 2 and Soxhlet Methods Using HPLC. FOOD ANAL METHOD 2021; 15:877-889. [PMID: 34812272 PMCID: PMC8598104 DOI: 10.1007/s12161-021-02136-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 10/03/2021] [Indexed: 11/05/2022]
Abstract
Recently, research studies on nutraceutically important polyphenolic substances have attracted intensive attention. Berberis vulgaris is an important source of polyphenolic compounds and is often used in traditional medicine. In this study, the extraction of rutin and apigenin rich oil from Berberis vulgaris fruits was evaluated by supercritical carbon dioxide (Sc-CO2) extraction method with and without co-solvent. As valuable antioxidants, rutin and apigenin content of extracts were analyzed by HPLC, and their amounts were maximized via parametric optimization. The rutin compound studied in this research has the potential to be a drug against the COVID-19 virus. The operating conditions were considered in the range of 35–70 °C temperatures, 140–240 bar of pressures, 0.35–1.00 mm of mean particle sizes, 3–7 l/min of CO2 flow rates, and 0–8% w/w co-solvent. As a result of Sc-CO2 extractions, the amounts of rutin and apigenin were found as 173 ± 14.97 µg/g and 2.91 ± 0.11 µg/g, respectively, with the 8% (w/w) co-solvent addition. The amounts of rutin and apigenin obtained by Soxhlet extractions were found as 208.81 ± 8.48 µg/g and 6.55 ± 0.21 µg/g, respectively. When the Sc-CO2 method was compared with the Soxhlet method, it was seen that the fast and eco-friendly Sc-CO2 method was an ideal extraction method by providing 76.89% rutin and 44.53% apigenin recoveries. As a result of this study, the maximum extraction conditions for rutin and apigenin were obtained as 160 bar, 40 °C, 0.35 mm particle size, 3 l/min CO2, 8% w/w co-solvent ratio, and 120 min extraction period.
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Bauer A, Minceva M. Techno-economic analysis of a new downstream process for the production of astaxanthin from the microalgae Haematococcus pluvialis. BIORESOUR BIOPROCESS 2021; 8:111. [PMID: 38650201 PMCID: PMC10992946 DOI: 10.1186/s40643-021-00463-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 10/27/2021] [Indexed: 11/10/2022] Open
Abstract
The biotechnological production of the carotenoid astaxanthin is done with the microalgae Haematococcus pluvialis (H. pluvialis). Under nutrient deficiency and light stress, H. pluvialis accumulates astaxanthin intracellularly and forms a resistant cyst cell wall that impedes direct astaxanthin extraction. Therefore, a complex downstream process is required, including centrifugation, mechanical cell wall disruption, drying, and supercritical extraction of astaxanthin with CO2. In this work, an alternative downstream process based on the direct extraction of astaxanthin from the algal broth into ethyl acetate using a centrifugal partition extractor (CPE) was developed. A mechanical cell wall disruption or germination of the cysts was carried out to make astaxanthin accessible to the solvent. Zoospores containing astaxanthin are released when growth conditions are applied to cyst cells, from which astaxanthin can directly be extracted into ethyl acetate. Energy-intensive unit operations such as spray-drying and extraction with supercritical CO2 can be replaced by directly extracting astaxanthin into ethyl acetate. Extraction yields of 85% were reached, and 3.5 g of oleoresin could be extracted from 7.85 g homogenised H. pluvialis biomass using a CPE unit with 244 mL column volume. A techno-economic analysis was done for a hypothetical H. pluvialis production facility with an annual biomass output of 8910 kg. Four downstream scenarios were examined, comparing the novel process of astaxanthin extraction from homogenised cyst cells and germinated zoospores via CPE extraction with the conventional industrial process using in-house or supercritical CO2 extraction via an external service provider. After 10 years of operation, the highest net present value (NPV) was determined for the CPE extraction from germinated zoospores.
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Affiliation(s)
- Andreas Bauer
- Biothermodynamics, TUM School of Life Sciences, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354, Freising, Germany.
| | - Mirjana Minceva
- Biothermodynamics, TUM School of Life Sciences, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354, Freising, Germany
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Scale-up approach for supercritical fluid extraction with ethanol-water modified carbon dioxide on Phyllanthus niruri for safe enriched herbal extracts. Sci Rep 2021; 11:15818. [PMID: 34349152 PMCID: PMC8338961 DOI: 10.1038/s41598-021-95222-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/06/2021] [Indexed: 11/08/2022] Open
Abstract
Scaling-up supercritical fluid extraction (SFE) for the extraction of bioactive compounds from herbal plants is challenging, especially with the presence of alcohol-water as co-solvent. Hence, the main objective of this study is to validate the scale-up criteria of SFE process for Phyllanthus niruri (P. niruri), and analyse the extract safety and profitability process at the industrial scale. The study was performed by using supercritical carbon dioxide (SC-CO2) with ethanol-water co-solvent at two operating conditions (L1: 200 bar, 60 °C and L2: 262 bar, 80 °C). The solvent-to-feed ratio (S/F) scale-up validation experiments were conducted at both operating conditions with feed mass capacity of 0.5 kg. The extraction yields and overall extraction curves obtained were almost similar to the predicted ones, with error of 5.13% and 14.2%, respectively. The safety of scale-up extract was evaluated by using a toxicity test against zebrafish embryo (FETT). The extract exhibited a low toxic effect with the LD50 value of 505.71 µg/mL. The economic evaluation using a detailed profitability analysis showed that the SFE of P. niruri was an economically feasible process, as it disclosed the encouraging values of return on investment (ROI) and net present values (NPV) for all scale-up capacities.
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Sarma S, Sharma S, Rudakiya D, Upadhyay J, Rathod V, Patel A, Narra M. Valorization of microalgae biomass into bioproducts promoting circular bioeconomy: a holistic approach of bioremediation and biorefinery. 3 Biotech 2021; 11:378. [PMID: 34367870 DOI: 10.1007/s13205-021-02911-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/28/2021] [Indexed: 11/30/2022] Open
Abstract
The need for alternative source of fuel has demanded the cultivation of 3rd generation feedstock which includes microalgae, seaweed and cyanobacteria. These phototrophic organisms are unique in a sense that they utilise natural sources like sunlight, water and CO2 for their growth and metabolism thereby producing diverse products that can be processed to produce biofuel, biochemical, nutraceuticals, feed, biofertilizer and other value added products. But due to low biomass productivity and high harvesting cost, microalgae-based production have not received much attention. Therefore, this review provides the state of the art of the microalgae based biorefinery approach to define an economical and sustainable process. The three major segments that need to be considered for economic microalgae biorefinery is low cost nutrient source, efficient harvesting methods and production of by-products with high market value. This review has outlined the use of various wastewater as nutrient source for simultaneous biomass production and bioremediation. Further, it has highlighted the common harvesting methods used for microalgae and also described various products from both raw biomass and delipidified microalgae residues in order to establish a sustainable, economical microalgae biorefinery with a touch of circular bioeconomy. This review has also discussed various challenges to be considered followed by a techno-economic analysis of the microalgae based biorefinery model.
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Affiliation(s)
- Shyamali Sarma
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Post Box No. 2, Anand, Gujarat 388120 India
| | - Shaishav Sharma
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Post Box No. 2, Anand, Gujarat 388120 India
| | - Darshan Rudakiya
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Post Box No. 2, Anand, Gujarat 388120 India
| | - Jinal Upadhyay
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Post Box No. 2, Anand, Gujarat 388120 India
| | - Vinod Rathod
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Post Box No. 2, Anand, Gujarat 388120 India
| | - Aesha Patel
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Post Box No. 2, Anand, Gujarat 388120 India
| | - Madhuri Narra
- Bioconversion Technology Division, Sardar Patel Renewable Energy Research Institute, Vallabh Vidyanagar, Post Box No. 2, Anand, Gujarat 388120 India
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Strategies for enhancing terpenoids accumulation in microalgae. Appl Microbiol Biotechnol 2021; 105:4919-4930. [PMID: 34125275 DOI: 10.1007/s00253-021-11368-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/17/2021] [Accepted: 05/25/2021] [Indexed: 10/21/2022]
Abstract
Terpenoids represent one of the largest class of chemicals in nature, which play important roles in food and pharmaceutical fields due to diverse biological and pharmacological activities. Microorganisms are recognized as a promising source of terpenoids due to its short growth cycle and sustainability. Importantly, microalgae can fix inorganic carbon through photosynthesis for the growth of themselves and the biosynthesis of various terpenoids. Moreover, microalgae possess effective biosynthesis pathways of terpenoids, both the eukaryotic mevalonic acid (MVA) pathway and the prokaryotic methyl-D-erythritol 4-phosphate (MEP) pathway. In recent years, various genetic engineering strategies have been applied to increase target terpenoid yields, including overexpression of the rate-limited enzymes and inhibition of the competing pathways. However, since gene-editing tools are only built in some model microalgae, fermentation strategies that are easier to be operated have been widely successful in promoting the production of terpenoids, such as changing culture conditions and addition of chemical additives. In addition, an economical and effective downstream process is also an important consideration for the industrial production of terpenoids, and the solvent extraction and the supercritical fluid extraction method are the most commonly used strategies, especially in the industrial production of β-carotene and astaxanthin from microalgae. In this review, recent advancements and novel strategies used for terpenoid production are concluded and discussed, and new insights to move the field forward are proposed. KEY POINTS: • The MEP pathway is more stoichiometrically efficient than the MVA pathway. • Advanced genetic engineering and fermentation strategies can increase terpene yield. • SFE has a higher recovery of carotenoids than solvent extraction.
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Li F, Zhang N, Zhang Y, Lian Q, Qin C, Qian Z, Wu Y, Yang Z, Li C, Huang X, Cai M. NaCl Promotes the Efficient Formation of Haematococcus pluvialis Nonmotile Cells under Phosphorus Deficiency. Mar Drugs 2021; 19:md19060337. [PMID: 34199219 PMCID: PMC8231962 DOI: 10.3390/md19060337] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 12/13/2022] Open
Abstract
Natural astaxanthin helps reduce the negative effects caused by oxidative stress and other related factors, thereby minimizing oxidative damage. Therefore, it has considerable potential and broad application prospects in human health and animal nutrition. Haematococcus pluvialis is considered to be the most promising cell factory for the production of natural astaxanthin. Previous studies have confirmed that nonmotile cells of H. pluvialis are more tolerant to high intensity of light than motile cells. Cultivating nonmotile cells as the dominant cell type in the red stage can significantly increase the overall astaxanthin productivity. However, we know very little about how to induce nonmotile cell formation. In this work, we first investigated the effect of phosphorus deficiency on the formation of nonmotile cells of H. pluvialis, and then investigated the effect of NaCl on the formation of nonmotile cells under the conditions of phosphorus deficiency. The results showed that, after three days of treatment with 0.1% NaCl under phosphorus deficiency, more than 80% of motile cells had been transformed into nonmotile cells. The work provides the most efficient method for the cultivation of H. pluvialis nonmotile cells so far, and it significantly improves the production of H. pluvialis astaxanthin.
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Affiliation(s)
- Feng Li
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen University, Xiamen 361102, China
- Key Laboratory of Marine Chemistry and Applied Technology, Xiamen University, Xiamen 361102, China
- College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China
| | - Ning Zhang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Yulei Zhang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Qingsheng Lian
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Caiying Qin
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Zuyuan Qian
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Yanqi Wu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Zhiyuan Yang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Changling Li
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Xianghu Huang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
| | - Minggang Cai
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; (F.L.); (N.Z.); (Y.Z.); (Q.L.); (C.Q.); (Z.Q.); (Y.W.); (Z.Y.); (C.L.); (X.H.)
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen University, Xiamen 361102, China
- Key Laboratory of Marine Chemistry and Applied Technology, Xiamen University, Xiamen 361102, China
- College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China
- Correspondence: ; Tel.: +86-0592-288-6188
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Manzoor M, Singh J, Gani A, Noor N. Valorization of natural colors as health-promoting bioactive compounds: Phytochemical profile, extraction techniques, and pharmacological perspectives. Food Chem 2021; 362:130141. [PMID: 34091168 DOI: 10.1016/j.foodchem.2021.130141] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 05/11/2021] [Accepted: 05/16/2021] [Indexed: 01/17/2023]
Abstract
Color is the prime attribute with a large impact on consumers' perception, selection, and acceptance of foods. However, the belief in bio-safety protocols, health benefits, and the nutritional importance of food colors had focused the attention of the scientific community across the globe towards natural colorants that serve to replace their synthetic toxic counterparts. Moreover, multi-disciplinary applications of greener extraction techniques and their hyphenated counterparts for selective extraction of bioactive compounds is a hot topic focusing on process intensification, waste valorization, and retention of highly stable bioactive pigments from natural sources. In this article, we have reviewed available literature to provide all possible information on various aspects of natural colorants, including their sources, photochemistry and associated biological activities explored under in-vitro and in-vivo animal and human studies. However a particular focus is given on innovative technological approaches for the effective extraction of natural colors for nutraceutical and pharmaceutical applications.
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Affiliation(s)
- Mehnaza Manzoor
- Division of Food Science and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu 180009, India.
| | - Jagmohan Singh
- Division of Food Science and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu 180009, India
| | - Adil Gani
- Department of Food Science and Technology, University of Kashmir, Srinagar 190006, India.
| | - Nairah Noor
- Division of Food Science and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu 180009, India
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Satari B, Jaiswal AK. Green fractionation of 2G and 3G feedstocks for ethanol production: advances, incentives and barriers. Curr Opin Food Sci 2021. [DOI: 10.1016/j.cofs.2020.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Valorization of unexploited artichoke leaves dust for obtaining of extracts rich in natural antioxidants. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Rodríguez-Sifuentes L, Marszalek JE, Hernández-Carbajal G, Chuck-Hernández C. Importance of Downstream Processing of Natural Astaxanthin for Pharmaceutical Application. FRONTIERS IN CHEMICAL ENGINEERING 2021. [DOI: 10.3389/fceng.2020.601483] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Astaxanthin (ASX) is a xanthophyll pigment considered as a nutraceutical with high antioxidant activity. Several clinical trials have shown the multiple health benefits of this molecule; therefore, it has various pharmaceutical industry applications. Commercial astaxanthin can be produced by chemical synthesis or through biosynthesis within different microorganisms. The molecule produced by the microorganisms is highly preferred due to its zero toxicity and superior therapeutic properties. However, the biotechnological production of the xanthophyll is not competitive against the chemical synthesis, since the downstream process may represent 70–80% of the process production cost. These operations denote then an opportunity to optimize the process and make this alternative more competitive. Since ASX is produced intracellularly by the microorganisms, high investment and high operational costs, like centrifugation and bead milling or high-pressure homogenization, are mainly used. In cell recovery, flocculation and flotation may represent low energy demanding techniques, whereas, after cell disruption, an efficient extraction technique is necessary to extract the highest percentage of ASX produced by the cell. Solvent extraction is the traditional method, but large-scale ASX production has adopted supercritical CO2 (SC-CO2), an efficient and environmentally friendly technology. On the other hand, assisted technologies are extensively reported since the cell disruption, and ASX extraction can be carried out in a single step. Because a high-purity product is required in pharmaceuticals and nutraceutical applications, the use of chromatography is necessary for the downstream process. Traditionally liquid-solid chromatography techniques are applied; however, the recent emergence of liquid-liquid chromatography like high-speed countercurrent chromatography (HSCCC) coupled with liquid-solid chromatography allows high productivity and purity up to 99% of ASX. Additionally, the use of SC-CO2, coupled with two-dimensional chromatography, is very promising. Finally, the purified ASX needs to be formulated to ensure its stability and bioavailability; thus, encapsulation is widely employed. In this review, we focus on the processes of cell recovery, cell disruption, drying, extraction, purification, and formulation of ASX mainly produced in Haematococcus pluvialis, Phaffia rhodozyma, and Paracoccus carotinifaciens. We discuss the current technologies that are being developed to make downstream operations more efficient and competitive in the biotechnological production process of this carotenoid.
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Zhu L, Wu M, Li P, Zhou Y, Zhong J, Zhang Z, Li Y, Yao W, Xu J. High-Pressure Supercritical CO 2 Extracts of Ganoderma lucidum Fruiting Body and Their Anti-hepatoma Effect Associated With the Ras/Raf/MEK/ERK Signaling Pathway. Front Pharmacol 2021; 11:602702. [PMID: 33381043 PMCID: PMC7768272 DOI: 10.3389/fphar.2020.602702] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/19/2020] [Indexed: 12/15/2022] Open
Abstract
As a noted medicinal mushroom, Ganoderma lucidum (G. lucidum) has been reported to have a number of pharmacological effects such as anti-tumor and liver protection. Compared with the common ethanol reflux method, supercritical CO2 extraction has obvious advantages in obtaining antitumor extracts from G. lucidum fruiting body such as short extraction time, low temperature and no solvent residue. However, Using high-pressure supercritical CO2 without entrainer to obtain the antitumor extracts from G. lucidum and studying their anti-hepatoma effect have not been reported. In this study, high-pressure supercritical CO2 extracts obtained under 65, 85, and 105 MPa pressure named as G65, G85, G105 respectively and ethanol reflux extract (GLE) were used to investigate their anti-hepatoma activity and the underlying molecular mechanism. The total triterpenoid content of G85 was significantly higher than that of G65 and GLE, but did not differ significantly from that of G105 by UV and high-performance liquid chromatography. GLE, G65, and G85 could inhibit cell proliferation, arrest cell cycle in G2/M phase, and induce apoptosis in two liver cancer cell lines (QGY7703 and SK-Hep1), of which G85 had the strongest effect. The results showed that the potency of their cytotoxicity of the high-pressure supercritical CO2 extracts on human hepatoma carcinoma cells in vitro was consistent with their total triterpenoid content. G85 exhibited significant anti-hepatoma effect with low toxicity In vivo. Further mechanistic investigation revealed that the anti-tumor effect of these extracts was associated with their inhibition of Ras/Raf/MEK/ERK signaling pathway. Our findings suggest that the high-pressure supercritical CO2 extraction of G. lucidum fruiting body can be used to obtain a triterpenoid-rich anti-tumor agent, which may have potential clinical significance for the treatment of human hepatoma.
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Affiliation(s)
- Liping Zhu
- Department of Pharmacology, Department of Natural Medicine, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China.,Fujian Xianzhilou Biological and Technology Co., Ltd., Fuzhou, China
| | - Min Wu
- Department of Pharmacology, Department of Natural Medicine, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Peng Li
- Department of Pharmacology, Department of Natural Medicine, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Yanfei Zhou
- Fujian Xianzhilou Biological and Technology Co., Ltd., Fuzhou, China
| | - Jinyi Zhong
- Department of Pharmacology, Department of Natural Medicine, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Zhiqiang Zhang
- Department of Pharmacology, Department of Natural Medicine, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Ye Li
- Fujian Xianzhilou Biological and Technology Co., Ltd., Fuzhou, China
| | - Weixi Yao
- Fujian Xianzhilou Biological and Technology Co., Ltd., Fuzhou, China
| | - Jianhua Xu
- Department of Pharmacology, Department of Natural Medicine, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
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Effect of CO 2 Flow Rate on the Extraction of Astaxanthin and Fatty Acids from Haematococcus pluvialis Using Supercritical Fluid Technology. Molecules 2020; 25:molecules25246044. [PMID: 33371297 PMCID: PMC7766558 DOI: 10.3390/molecules25246044] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/20/2022] Open
Abstract
Haematococcus pluvialis is the largest producer of natural astaxanthin in the world. Astaxanthin is a bioactive compound used in food, feed, nutraceutics, and cosmetics. In this study, astaxanthin extraction from H. pluvialis by supercritical fluid extraction was evaluated. The effects of temperature (40 and 50 °C), pressure (40 and 50 MPa), and CO2 flow rate (2 and 4 L/min) were investigated. The results showed that the highest astaxanthin recovery was obtained at 50 °C/50 MPa and the CO2 flow rates evaluated had no significant effect. It was possible to achieve astaxanthin recoveries of 95% after 175 min for a CO2 flow rate of 2 L/min, and 95 min for CO2 flow rate of 4 L/min. The ω-6/ω-3 ratios obtained were similar in all conditions, reaching 0.87, demonstrating that the extracts from H. pluvialis by SFE are rich in unsaturated fatty acids (UFA) which increases their positive effects when used as a functional ingredient in food.
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Li L, Chen Z, Huang Q. Exogenous γ-aminobutyric acid promotes biomass and astaxanthin production in Haematococcus pluvialis. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102089] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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39
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Novel Insights into the Biotechnological Production of Haematococcus pluvialis-Derived Astaxanthin: Advances and Key Challenges to Allow Its Industrial Use as Novel Food Ingredient. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8100789] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Astaxanthin shows many biological activities. It has acquired a high economic potential and its current market is dominated by its synthetic form. However, due to the increase of the health and environmental concerns from consumers, natural forms are now preferred for human consumption. Haematococcus pluvialis is artificially cultured at an industrial scale to produce astaxanthin used as a dietary supplement. However, due to the high cost of its cultivation and its relatively low biomass and pigment productivities, the astaxanthin extracted from this microalga remains expensive and this has probably the consequence of slowing down its economic development in the lower added-value market such as food ingredient. In this review, we first aim to provide an overview of the chemical and biochemical properties of astaxanthin, as well as of its natural sources. We discuss its bioavailability, metabolism, and biological activities. We present a state-of-the-art of the biology and physiology of H. pluvialis, and highlight novel insights into the biotechnological processes which allow optimizing the biomass and astaxanthin productivities. We are trying to identify some lines of research that would improve the industrial sustainability and economic viability of this bio-production and to broaden the commercial potential of astaxanthin produced from H. pluvialis.
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40
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Haematococcus pluvialis bioprocess optimization: Effect of light quality, temperature and irradiance on growth, pigment content and photosynthetic response. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102027] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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41
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Mularczyk M, Michalak I, Marycz K. Astaxanthin and other Nutrients from Haematococcus pluvialis-Multifunctional Applications. Mar Drugs 2020; 18:E459. [PMID: 32906619 PMCID: PMC7551667 DOI: 10.3390/md18090459] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 12/14/2022] Open
Abstract
Bioactive compounds of natural origin are gaining increasing popularity. High biological activity and bioavailability, beneficial effects on health and safety of use are some of their most desirable features. Low production and processing costs render them even more attractive. Microorganisms have been used in the food, medicinal, cosmetic and energy industries for years. Among them, microalgae have proved to be an invaluable source of beneficial compounds. Haematococcus pluvialis is known as the richest source of natural carotenoid called astaxanthin. In this paper, we focus on the cultivation methods of this green microalga, its chemical composition, extraction of astaxanthin and analysis of its antioxidant, anti-inflammatory, anti-diabetic and anticancer activities. H. pluvialis, as well as astaxanthin can be used not only for the treatment of human and animal diseases, but also as a valuable component of diet and feed.
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Affiliation(s)
- Malwina Mularczyk
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, ul. Norwida 27B, 50-375 Wroclaw, Poland;
| | - Izabela Michalak
- Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Science and Technology, Smoluchowskiego 25, 50-372 Wrocław, Poland;
| | - Krzysztof Marycz
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, ul. Norwida 27B, 50-375 Wroclaw, Poland;
- International Institute of Translational Medicine, Malin, Jesionowa 11, 55-114 Wisznia Mała, Poland
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Mehariya S, Sharma N, Iovine A, Casella P, Marino T, Larocca V, Molino A, Musmarra D. An Integrated Strategy for Nutraceuticals from Haematoccus pluvialis: From Cultivation to Extraction. Antioxidants (Basel) 2020; 9:E825. [PMID: 32899350 PMCID: PMC7554706 DOI: 10.3390/antiox9090825] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 02/07/2023] Open
Abstract
The aim of this study was to develop an effective integrated cultivation system for Haematococcus pluvialis as a source of bioactive compounds such as astaxanthin, lutein, proteins, and fatty acids (FAs). The Chlorophyta H. pluvialis was cultivated in a vertical bubble column photobioreactor (VBC-PBR) under batch mode, allowing switching from green to red phase for astaxanthin induction. The combined effect of light intensity and nutrients on bioactive compound formation was investigated. Results showed that growth under lower nutrients availability and light intensity led to a higher concentration of biomass. Growth under high light intensity with an appropriate concentration of nitrate, sulfate, phosphate and magnesium led to ~85% and ~58% higher production of total carotenoids and fatty acids, respectively. Under high stress conditions, ~90% nitrate and phosphate consumption were observed.
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Affiliation(s)
- Sanjeet Mehariya
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Real Casa dell’Annunziata, Via Roma 29, 81031 Aversa (CE), Italy; (S.M.); (A.I.); (T.M.)
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability-CR Portici, P. Enrico Fermi, 1, 80055 Portici (NA), Italy; (P.C.); (A.M.)
| | - Neeta Sharma
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability-CR Trisaia, SS Jonica 106, km 419 + 500, 75026 Rotondella (MT), Italy; (N.S.); (V.L.)
| | - Angela Iovine
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Real Casa dell’Annunziata, Via Roma 29, 81031 Aversa (CE), Italy; (S.M.); (A.I.); (T.M.)
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability-CR Portici, P. Enrico Fermi, 1, 80055 Portici (NA), Italy; (P.C.); (A.M.)
| | - Patrizia Casella
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability-CR Portici, P. Enrico Fermi, 1, 80055 Portici (NA), Italy; (P.C.); (A.M.)
| | - Tiziana Marino
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Real Casa dell’Annunziata, Via Roma 29, 81031 Aversa (CE), Italy; (S.M.); (A.I.); (T.M.)
| | - Vincenzo Larocca
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability-CR Trisaia, SS Jonica 106, km 419 + 500, 75026 Rotondella (MT), Italy; (N.S.); (V.L.)
| | - Antonio Molino
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability-CR Portici, P. Enrico Fermi, 1, 80055 Portici (NA), Italy; (P.C.); (A.M.)
| | - Dino Musmarra
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Real Casa dell’Annunziata, Via Roma 29, 81031 Aversa (CE), Italy; (S.M.); (A.I.); (T.M.)
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43
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Onorato C, Rösch C. Comparative life cycle assessment of astaxanthin production with Haematococcus pluvialis in different photobioreactor technologies. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102005] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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44
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Ambrico A, Trupo M, Magarelli R, Balducchi R, Ferraro A, Hristoforou E, Marino T, Musmarra D, Casella P, Molino A. Effectiveness of Dunaliella salina Extracts against Bacillus subtilis and Bacterial Plant Pathogens. Pathogens 2020; 9:pathogens9080613. [PMID: 32731345 PMCID: PMC7459613 DOI: 10.3390/pathogens9080613] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 11/17/2022] Open
Abstract
Several bacteria pathogens are responsible for plant diseases causing significant economic losses. The antibacterial activity of Dunaliella salina microalgae extracts were investigated in vitro and in vivo. First, biomass composition was chemically characterized and subjected to extraction using polar/non-polar solvents. The highest extraction yield was obtained using chloroform:methanol (1:1 v/v) equal to 170 mg g−1 followed by ethanol (88 mg g−1) and hexane (61 mg g−1). In vitro examination of hexane extracts of Dunaliella salina demonstrated antibacterial activity against all tested bacteria. The hexane extract showed the highest amount of β-carotene with respect to the others, so it was selected for subsequent analyses. In vivo studies were also carried out using hexane extracts of D. salina against Pseudomonas syringae pv. tomato and Pectobacterium carotovorum subsp. carotovorum on young tomato plants and fruits of tomato and zucchini, respectively. The treated young tomato plants exhibited a reduction of 65.7% incidence and 77.0% severity of bacterial speck spot disease. Similarly, a reduction of soft rot symptoms was observed in treated tomato and zucchini fruits with a disease incidence of 5.3% and 12.6% with respect to 90.6% and 100%, respectively, for the positive control.
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Affiliation(s)
- Alfredo Ambrico
- Energy and Sustainable Economic Development Department of Sustainability, ENEA Italian National Agency for New Technologies, R.C. Trisaia S.S. 106 Jonica, 75026 Rotondella, Italy; (A.A.); (M.T.); (R.M.); (R.B.)
| | - Mario Trupo
- Energy and Sustainable Economic Development Department of Sustainability, ENEA Italian National Agency for New Technologies, R.C. Trisaia S.S. 106 Jonica, 75026 Rotondella, Italy; (A.A.); (M.T.); (R.M.); (R.B.)
| | - Rosaria Magarelli
- Energy and Sustainable Economic Development Department of Sustainability, ENEA Italian National Agency for New Technologies, R.C. Trisaia S.S. 106 Jonica, 75026 Rotondella, Italy; (A.A.); (M.T.); (R.M.); (R.B.)
| | - Roberto Balducchi
- Energy and Sustainable Economic Development Department of Sustainability, ENEA Italian National Agency for New Technologies, R.C. Trisaia S.S. 106 Jonica, 75026 Rotondella, Italy; (A.A.); (M.T.); (R.M.); (R.B.)
| | - Angelo Ferraro
- School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 9, IroonPolytechnioustr, 15780 Athens, Greece; (A.F.); (E.H.)
| | - Evangelos Hristoforou
- School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 9, IroonPolytechnioustr, 15780 Athens, Greece; (A.F.); (E.H.)
| | - Tiziana Marino
- Department of Civil and Building Engineering, Design and Environment, Università degli Studi della Campania “L.Vanvitelli”, Real Casa dell’Annunziata, Via Roma 9, 81031 Aversa, Italy; (T.M.); (D.M.)
| | - Dino Musmarra
- Department of Civil and Building Engineering, Design and Environment, Università degli Studi della Campania “L.Vanvitelli”, Real Casa dell’Annunziata, Via Roma 9, 81031 Aversa, Italy; (T.M.); (D.M.)
| | - Patrizia Casella
- Energy and Sustainable Economic Development Department of Sustainability, ENEA Italian National Agency for New Technologies, R.C. Portici, Piazzale Enrico Fermi 1, 80055 Portici, Italy;
| | - Antonio Molino
- Energy and Sustainable Economic Development Department of Sustainability, ENEA Italian National Agency for New Technologies, R.C. Portici, Piazzale Enrico Fermi 1, 80055 Portici, Italy;
- Correspondence: ; Tel.: +39-081-772-3276
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Du KZ, Sun AL, Yan C, Liang C, Qi L, Wang C, Yang R, Cui Y, Shang Y, Li J, Chang YX. Recent advances of green pretreatment techniques for quality control of natural products. Electrophoresis 2020; 41:1469-1481. [PMID: 32524626 DOI: 10.1002/elps.202000084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/14/2020] [Accepted: 05/28/2020] [Indexed: 12/16/2022]
Abstract
A few advancing technologies for natural product analysis have been widely proposed, which focus on decreasing energy consumption and developing an environmentally sustainable manner. These green sample pretreatment and analysis methods following the green Analytical Chemistry (GAC) criteria have the advantage of improving the strategy of chemical analyses, promoting sustainable development to analytical laboratories, and reducing the negative effects of analysis experiments on the environment. A few minimized extraction methodologies have been proposed for replacing the traditional methods in the quality evaluation of natural products, mainly including solid-phase microextraction (SPME) and liquid phase microextraction (LPME). These procedures not only have no need for large numbers of samples and toxic reagent, but also spend a small amount of extraction and analytical time. This overview aims to list out the main green strategies on the application of quality evaluation and control for natural products in the past 3 years.
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Affiliation(s)
- Kun-Ze Du
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - A-Li Sun
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Chaozhuo Yan
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Chunxiao Liang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Lina Qi
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Chenhong Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Rui Yang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Yan Cui
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Ye Shang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Jin Li
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Yan-Xu Chang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China.,Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
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Li J, Guo C, Wu J. Astaxanthin in Liver Health and Disease: A Potential Therapeutic Agent. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:2275-2285. [PMID: 32606597 PMCID: PMC7293384 DOI: 10.2147/dddt.s230749] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 05/18/2020] [Indexed: 12/12/2022]
Abstract
Astaxanthin is a carotenoid derived from oxygen-containing non-vitamin A sources and is mainly obtained from marine organisms. Studies have demonstrated that astaxanthin is a natural antioxidant product and it is widely used in the fields of medicine, health-care products and cosmetics. Studies have shown that astaxanthin has important preventive and therapeutic effects on liver fibrosis, non-alcoholic fatty liver, liver cancer, drug and ischemia-induced liver injury, and its mechanism is related to antioxidant and anti-inflammatory activities, and the regulation of multiple signaling pathways. In this review, we discuss the latest data on astaxanthin in the prevention and treatment of liver diseases. An understanding of the structure, source and mechanism of action of astaxanthin in the body would not only provide a theoretical basis for its clinical application but could also have important significance in screening and improving related compounds for the treatment of liver diseases.
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Affiliation(s)
- Jingjing Li
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai 200060, People's Republic of China
| | - Chuanyong Guo
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of China
| | - Jianye Wu
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai 200060, People's Republic of China
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Casella P, Iovine A, Mehariya S, Marino T, Musmarra D, Molino A. Smart Method for Carotenoids Characterization in Haematococcus pluvialis red phase and Evaluation of Astaxanthin Thermal Stability. Antioxidants (Basel) 2020; 9:antiox9050422. [PMID: 32414186 PMCID: PMC7278830 DOI: 10.3390/antiox9050422] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 04/30/2020] [Accepted: 05/01/2020] [Indexed: 02/07/2023] Open
Abstract
Haematococcus pluvialis microalgae is a promising source of astaxanthin, an excellent antioxidant carotenoid. H. pluvialis, as well as other species, could find more extensive applications as healthy food for a variegated carotenoids composition in addition to astaxanthin. Official method has not currently been used for this purpose. The objective of this work was to propose a method to characterize carotenoids in H. pluvialis after the comparison between spectrophotometric and liquid chromatography analysis. In addition, in order to improve the use of astaxanthin in the food industry, thermal stability was investigated. In this context, the effect of temperature at 40-80 °C, over a 16 h storage period was tested on astaxanthin produced by H. pluvialis. A further test was carried out at room temperature (20 °C) for seven days. A decrease in the astaxanthin concentration was observed at all tested temperatures with a decrease >50% of all-trans isomer at 80 °C after 16 h and an increase of 9-cis and 13-cis isomers. In conclusion, the obtained results showed the importance of evaluating the degradation effect of temperature on astaxanthin used as a food additive for a future greater enhancement of this bioproduct in the food field.
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Affiliation(s)
- Patrizia Casella
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability—CR Portici. P. Enrico Fermi, 1, 80055 Portici (NA), Italy; (P.C.); (A.I.); (S.M.)
| | - Angela Iovine
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability—CR Portici. P. Enrico Fermi, 1, 80055 Portici (NA), Italy; (P.C.); (A.I.); (S.M.)
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Real Casa dell’Annunziata, Via Roma 29, 81031 Aversa (CE), Italy; (T.M.); (D.M.)
| | - Sanjeet Mehariya
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability—CR Portici. P. Enrico Fermi, 1, 80055 Portici (NA), Italy; (P.C.); (A.I.); (S.M.)
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Real Casa dell’Annunziata, Via Roma 29, 81031 Aversa (CE), Italy; (T.M.); (D.M.)
| | - Tiziana Marino
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Real Casa dell’Annunziata, Via Roma 29, 81031 Aversa (CE), Italy; (T.M.); (D.M.)
| | - Dino Musmarra
- Department of Engineering, University of Campania “Luigi Vanvitelli”, Real Casa dell’Annunziata, Via Roma 29, 81031 Aversa (CE), Italy; (T.M.); (D.M.)
| | - Antonio Molino
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability—CR Portici. P. Enrico Fermi, 1, 80055 Portici (NA), Italy; (P.C.); (A.I.); (S.M.)
- Correspondence: ; Tel.: +39-081-772-3276
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Roy VC, Getachew AT, Cho YJ, Park JS, Chun BS. Recovery and bio-potentialities of astaxanthin-rich oil from shrimp (Penaeus monodon) waste and mackerel (Scomberomous niphonius) skin using concurrent supercritical CO2 extraction. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104773] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Sun L, Alper HS. Non-conventional hosts for the production of fuels and chemicals. Curr Opin Chem Biol 2020; 59:15-22. [PMID: 32348879 DOI: 10.1016/j.cbpa.2020.03.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 03/18/2020] [Accepted: 03/25/2020] [Indexed: 12/16/2022]
Abstract
Biotechnology offers a green alternative for the production of fuels and chemicals using microbes. Although traditional model hosts such as Escherichia coli and Saccharomyces cerevisiae have been widely studied and used, they may not be the best hosts for industrial application. In this review, we explore recent advances in the use of nonconventional hosts for the production of a variety of fuel, cosmetics, perfumes, food, and pharmaceuticals. Specifically, we highlight twenty-seven popular molecules with a special focus on recent progress and metabolic engineering strategies to enable improved production of fuels and chemicals. These examples demonstrate the promise of nonconventional host engineering.
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Affiliation(s)
- Lichao Sun
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China
| | - Hal S Alper
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, 2500 Speedway Avenue, Austin, TX, 78712, United States; McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E Dean Keeton St. Stop C0400, Austin, TX, 78712, United States.
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50
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Park JY, Oh YK, Choi SA, Kim MC. Recovery of Astaxanthin-Containing Oil from Haematococcus pluvialis by Nano-dispersion and Oil Partitioning. Appl Biochem Biotechnol 2020; 190:1304-1318. [PMID: 31754984 DOI: 10.1007/s12010-019-03167-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 10/23/2019] [Indexed: 12/31/2022]
Abstract
The feasibilities of cell disruption by homogenization-assisted high-pressure nano-dispersion and recovery of astaxanthin-containing oil by oil partitioning in oil-acetone-water solution were examined. The total fatty acid content of Haematococcus pluvialis was 414.6 mg/g cell, and the astaxanthin content was 4.4% of oil. Extra oil was added to the solution in order to recover oil through instability of dispersion status instead of solvent evaporation. A total amount of energy of 0.34 kWh/L was consumed for acetone evaporation at 50 °C, whereas fully 1.86 kWh/L of energy for water evaporation was consumed. When soybean oil was added to the solution after partial acetone evaporation, the oil-recovery yield was 97.8%, while the yield after full evaporation was 97.6% in 10-g/L solution. However, the energy consumed for partial evaporation (0.29 kWh/L) was much lower than that for full evaporation (0.40 kWh/L). When H. pluvialis oil was added to the solution after partial evaporation, the oil-recovery yield decreased to 90.6% due to the impurity of crude H. pluvialis oil in 10-g/L solution. Methods such as refining of H. pluvialis oil, increase of microalgae dosage for cell disruption, and increase of the injection amount of extra oil can help to enhance oil recovery.
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Affiliation(s)
- Ji-Yeon Park
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon, 34129, Republic of Korea.
| | - You-Kwan Oh
- School of Chemical & Biomolecular Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Sun-A Choi
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon, 34129, Republic of Korea
| | - Min-Cheol Kim
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon, 34129, Republic of Korea
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