Pub Date : 2020-04-02DOI: 10.1080/15422119.2019.1590412
Regiane Alves de Oliveira, M. Alexandri, Andrea Komesu, J. Venus, C. E. Vaz Rossell, R. Maciel Filho
Lactic acid is an important chemical as starting chiral material in various applications. It has increased value in the global market. Different studies have presented the possibility to obtain rich lactic acid solutions with high isomeric purity (S-form) from second-generation (2G) feedstocks. The used downstream process is crucial, not only in terms of the overall cost but also for the achievement of high product purity, suitable for high-value applications. This review provides an overview of the current state-of-the-art on the separation and purification methods of lactic acid derived from the fermentation of second-generation feedstocks. The traditional precipitation method, solvent extraction, affinity-related processes, membrane separation, reaction-separation systems, salting-out extraction and molecular distillation are the main processes investigated so far. The different approaches are discussed in terms of lactic acid recovery yield and purity as well as their environmental impact. Graphical Abstract
{"title":"Current Advances in Separation and Purification of Second-Generation Lactic Acid","authors":"Regiane Alves de Oliveira, M. Alexandri, Andrea Komesu, J. Venus, C. E. Vaz Rossell, R. Maciel Filho","doi":"10.1080/15422119.2019.1590412","DOIUrl":"https://doi.org/10.1080/15422119.2019.1590412","url":null,"abstract":"Lactic acid is an important chemical as starting chiral material in various applications. It has increased value in the global market. Different studies have presented the possibility to obtain rich lactic acid solutions with high isomeric purity (S-form) from second-generation (2G) feedstocks. The used downstream process is crucial, not only in terms of the overall cost but also for the achievement of high product purity, suitable for high-value applications. This review provides an overview of the current state-of-the-art on the separation and purification methods of lactic acid derived from the fermentation of second-generation feedstocks. The traditional precipitation method, solvent extraction, affinity-related processes, membrane separation, reaction-separation systems, salting-out extraction and molecular distillation are the main processes investigated so far. The different approaches are discussed in terms of lactic acid recovery yield and purity as well as their environmental impact. Graphical Abstract","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75193232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-02DOI: 10.1080/15422119.2018.1564328
Natália B. Melani, E. Tambourgi, E. Silveira
Lipases (triacylglycerol hydrolases E.C. 3.1.1.3) are enzymes produced by mammals, plants, fungi and bacteria that catalyze the hydrolysis of triacylglycerols into glycerol and fatty acids. Lipases are versatile in lipid biotechnology due to their selective properties, which have been applied in recent years in emulsifiers, pharmaceuticals, cosmetics, flavors, fragrances, as well as for the pretreatment of lipid-rich wastewater, the bioremediation of oils and biodiesel synthesis. This review offers information collected over the last 10 years on lipase sources as well as advances in production, purification strategies and the main applications in industry.
{"title":"Lipases: From Production to Applications","authors":"Natália B. Melani, E. Tambourgi, E. Silveira","doi":"10.1080/15422119.2018.1564328","DOIUrl":"https://doi.org/10.1080/15422119.2018.1564328","url":null,"abstract":"Lipases (triacylglycerol hydrolases E.C. 3.1.1.3) are enzymes produced by mammals, plants, fungi and bacteria that catalyze the hydrolysis of triacylglycerols into glycerol and fatty acids. Lipases are versatile in lipid biotechnology due to their selective properties, which have been applied in recent years in emulsifiers, pharmaceuticals, cosmetics, flavors, fragrances, as well as for the pretreatment of lipid-rich wastewater, the bioremediation of oils and biodiesel synthesis. This review offers information collected over the last 10 years on lipase sources as well as advances in production, purification strategies and the main applications in industry.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87659241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-29DOI: 10.1080/15422119.2020.1714658
M. I. Din, R. Khalid, Zaib Hussain
ABSTRACT Today various wastewater treatment methodologies such as chemical oxidation, biological treatment, chemical precipitation, fenton technology, and advanced oxidation processes are used to resolve water scarcity concerns. The advanced oxidation processes are considered to be suitable for solving some water issues due to their enhanced features in photo-oxidation of organic compounds. Recent nanoparticle-mediated photo-oxidative processes, involving zinc oxide and titanium dioxide semiconductors, constitute a proficient, resourceful, and sustainable method which is developed primarily to remove phenols and aromatic dyes from groundwaters and wastewaters. This review focuses on the evolution of nanoparticle-mediated titanium dioxide and zinc oxide catalysts with a band edge effective in the UV region. This catalytic medium has subsequently been modified to be effective in the visible region. In this regard, a brief discussion on the substitution of metals and nonmetals on Zn2+, Ti4+, or O2- sites for efficient photocatalytic performance under visible light is also emphasized. The emphasized points are: (i) degradation kinetics and (2) operating parameters affecting the catalytic photo-oxidation and (3) concluding remarks drawn from collected surveys. The recent progresses made in the production of doped photocatalysts for the mineralization of phenols and dyes are also highlighted.
{"title":"Recent Research on Development and Modification of Nontoxic Semiconductor for Environmental Application","authors":"M. I. Din, R. Khalid, Zaib Hussain","doi":"10.1080/15422119.2020.1714658","DOIUrl":"https://doi.org/10.1080/15422119.2020.1714658","url":null,"abstract":"ABSTRACT Today various wastewater treatment methodologies such as chemical oxidation, biological treatment, chemical precipitation, fenton technology, and advanced oxidation processes are used to resolve water scarcity concerns. The advanced oxidation processes are considered to be suitable for solving some water issues due to their enhanced features in photo-oxidation of organic compounds. Recent nanoparticle-mediated photo-oxidative processes, involving zinc oxide and titanium dioxide semiconductors, constitute a proficient, resourceful, and sustainable method which is developed primarily to remove phenols and aromatic dyes from groundwaters and wastewaters. This review focuses on the evolution of nanoparticle-mediated titanium dioxide and zinc oxide catalysts with a band edge effective in the UV region. This catalytic medium has subsequently been modified to be effective in the visible region. In this regard, a brief discussion on the substitution of metals and nonmetals on Zn2+, Ti4+, or O2- sites for efficient photocatalytic performance under visible light is also emphasized. The emphasized points are: (i) degradation kinetics and (2) operating parameters affecting the catalytic photo-oxidation and (3) concluding remarks drawn from collected surveys. The recent progresses made in the production of doped photocatalysts for the mineralization of phenols and dyes are also highlighted.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78435797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-19DOI: 10.1080/15422119.2019.1677249
Nathiele Contrera Gimenes, E. Silveira, E. Tambourgi
Peptidases or proteases are enzymes with the ability to break peptide bonds. They have been investigated due to their industrial applications in products such as foods and detergents. This review provides an update of protease characteristics, production, downstream processes and industrial applications. Proteases are predominantly produced by microorganisms using submerged and solid-state fermentations. The bottleneck of production is found in downstream processes, which can account for 70 to 90% of the total production cost. Precipitation is used in addition to extraction using aqueous two-phase systems (ATPSs). ATPS extraction has emerged as a recovery method enabling to clarify, to concentrate, and to purify the target biomolecule in a single operation. However, efficient cost-effective strategies need to be improved in order to provide peptidases to industries on a sufficient level. The search for new protease sources has been encouraged in order to meet industrial application requirements.
{"title":"An Overview of Proteases: Production, Downstream Processes and Industrial Applications","authors":"Nathiele Contrera Gimenes, E. Silveira, E. Tambourgi","doi":"10.1080/15422119.2019.1677249","DOIUrl":"https://doi.org/10.1080/15422119.2019.1677249","url":null,"abstract":"Peptidases or proteases are enzymes with the ability to break peptide bonds. They have been investigated due to their industrial applications in products such as foods and detergents. This review provides an update of protease characteristics, production, downstream processes and industrial applications. Proteases are predominantly produced by microorganisms using submerged and solid-state fermentations. The bottleneck of production is found in downstream processes, which can account for 70 to 90% of the total production cost. Precipitation is used in addition to extraction using aqueous two-phase systems (ATPSs). ATPS extraction has emerged as a recovery method enabling to clarify, to concentrate, and to purify the target biomolecule in a single operation. However, efficient cost-effective strategies need to be improved in order to provide peptidases to industries on a sufficient level. The search for new protease sources has been encouraged in order to meet industrial application requirements.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82434038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fatty acids (FAs) are a class of lipids found in everyday foods that are closely related to human health. These chemicals are involved in many physiological functions. The establishment of methods for the analysis of FAs in different foods is necessary. In this review, an updated overview of the pretreatment and analysis methods that have been reported since 2012 is given. Sample preparation methods involve extraction, fractionation and derivatization, while analysis methods involve chromatographic, spectral, and electrophoretic methods, as well as several other methods. Different pretreatment and determination methods are discussed.
{"title":"Progress in Pretreatment and Analysis of Fatty Acids in Foods: An Update since 2012","authors":"Xiaomin Liu, Y. Zhang, Yu Zhou, Guo-hui Li, Ben-Qing Zeng, Jian-wei Zhang, Xue-song Feng","doi":"10.1080/15422119.2019.1673776","DOIUrl":"https://doi.org/10.1080/15422119.2019.1673776","url":null,"abstract":"Fatty acids (FAs) are a class of lipids found in everyday foods that are closely related to human health. These chemicals are involved in many physiological functions. The establishment of methods for the analysis of FAs in different foods is necessary. In this review, an updated overview of the pretreatment and analysis methods that have been reported since 2012 is given. Sample preparation methods involve extraction, fractionation and derivatization, while analysis methods involve chromatographic, spectral, and electrophoretic methods, as well as several other methods. Different pretreatment and determination methods are discussed.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83229980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-02DOI: 10.1080/15422119.2018.1474477
N. M. P. D. Rocha e Silva, H. M. Meira, F. C. Almeida, R. D. C. F. Soares da Silva, D. Almeida, J. M. Luna, R. Rufino, V. Santos, L. Sarubbo
The cleaning of machinery, petroleum storage tanks and equipment leads to the accumulation of petroleum products in the environment. The removal of grease adhered to motors is a specific challenge. Cleaning processes require direct application of surfactants or solvents, which most often generate further environmental problems due to the accumulation of these toxic substances. The majority of available surfactants are synthesized from petroleum derivatives. However, environmental laws have motivated the development of natural surfactants as an alternative to existing products. Biosurfactants can be obtained from microorganisms and plants. Biodegradable detergents can also be obtained through chemical synthesis. This review presents different alternatives for obtaining biodetergents as well as their industrial applications for the removal of heavy oils and the reduction of cleaning and labor costs in industries.
{"title":"Natural Surfactants and Their Applications for Heavy Oil Removal in Industry","authors":"N. M. P. D. Rocha e Silva, H. M. Meira, F. C. Almeida, R. D. C. F. Soares da Silva, D. Almeida, J. M. Luna, R. Rufino, V. Santos, L. Sarubbo","doi":"10.1080/15422119.2018.1474477","DOIUrl":"https://doi.org/10.1080/15422119.2018.1474477","url":null,"abstract":"The cleaning of machinery, petroleum storage tanks and equipment leads to the accumulation of petroleum products in the environment. The removal of grease adhered to motors is a specific challenge. Cleaning processes require direct application of surfactants or solvents, which most often generate further environmental problems due to the accumulation of these toxic substances. The majority of available surfactants are synthesized from petroleum derivatives. However, environmental laws have motivated the development of natural surfactants as an alternative to existing products. Biosurfactants can be obtained from microorganisms and plants. Biodegradable detergents can also be obtained through chemical synthesis. This review presents different alternatives for obtaining biodetergents as well as their industrial applications for the removal of heavy oils and the reduction of cleaning and labor costs in industries.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83046589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-12DOI: 10.1080/15422119.2019.1639519
Eli Syafiqah Aziman, Ahmad Hayaton Jamely Mohd Salehuddin, Aznan Fazli Ismail
Thorium affects human health and causes environmental issues. The concentration of thorium in the environment may increase due to waste that is produced from human activities like mining, rare-earth extraction, and others. If this waste is not handled properly, thorium may leak and cause water contamination. This review summarises the methods of thorium removal from wastewater. The article addresses the main features of the techniques for thorium removal by physicochemical processes such as chemical precipitation, ion exchange, adsorption, electrochemical and membrane filtration. Their advantages and limitations in the applications are evaluated. Bioadsorption and natural material are widely used in the removal of thorium. However, in the near future, the electrosorption process seems to be the most promising method to treat wastewater since it can overcome limitations of adsorption techniques with the help of electric current to have a more efficient and rapid process. It should be noted that all the techniques able to remove thorium depend on pH, temperature, the concentration of thorium and other wastewater components. In general, the technical applicability, simplicity of technique and cost-effectiveness are the key factors in selecting the most suitable treatment for removal of thorium.
{"title":"Remediation of Thorium (IV) from Wastewater: Current Status and Way Forward","authors":"Eli Syafiqah Aziman, Ahmad Hayaton Jamely Mohd Salehuddin, Aznan Fazli Ismail","doi":"10.1080/15422119.2019.1639519","DOIUrl":"https://doi.org/10.1080/15422119.2019.1639519","url":null,"abstract":"Thorium affects human health and causes environmental issues. The concentration of thorium in the environment may increase due to waste that is produced from human activities like mining, rare-earth extraction, and others. If this waste is not handled properly, thorium may leak and cause water contamination. This review summarises the methods of thorium removal from wastewater. The article addresses the main features of the techniques for thorium removal by physicochemical processes such as chemical precipitation, ion exchange, adsorption, electrochemical and membrane filtration. Their advantages and limitations in the applications are evaluated. Bioadsorption and natural material are widely used in the removal of thorium. However, in the near future, the electrosorption process seems to be the most promising method to treat wastewater since it can overcome limitations of adsorption techniques with the help of electric current to have a more efficient and rapid process. It should be noted that all the techniques able to remove thorium depend on pH, temperature, the concentration of thorium and other wastewater components. In general, the technical applicability, simplicity of technique and cost-effectiveness are the key factors in selecting the most suitable treatment for removal of thorium.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90792323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-03DOI: 10.1080/15422119.2018.1457541
M. I. Malik, Huma Shaikh, G. Mustafa, M. I. Bhanger
The increased complexity of sample matrices resulted in the requirement of specific and sensitive molecular recognition systems. Although molecular imprinting is an old idea, its potential as molecular recognition tool in analytical chemistry has been revived in recent times. This review intended to comprehensively discuss and evaluate the recent progress in the applications of molecularly imprinted polymers (MIPs) in analytical chemistry. A concise introduction for new readers in the field is followed by the comprehensive critical review of these developments in MIP technology and their applications in analytical chemistry. This review is divided into three sections namely, extraction, sensors and chromatography. The three sections are further separated into several sub-sections. The applications related to compound extraction are subdivided into extraction of toxins and bioactive compound extraction. MIPs as sensors are subdivided into luminescence probes, surface plasmon resonance (SPR) sensors, quartz crystal microbalance (QCM) and electrochemical sensors. Finally, the MIP applications as stationary phase for chromatography are elaborated. This section is subdivided into HPLC and capillary electrochromatography (CEC). The significant aspects of applications of the molecular imprinting polymers in analytical chemistry are evaluated focusing majorly on literature appeared in last five years.
{"title":"Recent Applications of Molecularly Imprinted Polymers in Analytical Chemistry","authors":"M. I. Malik, Huma Shaikh, G. Mustafa, M. I. Bhanger","doi":"10.1080/15422119.2018.1457541","DOIUrl":"https://doi.org/10.1080/15422119.2018.1457541","url":null,"abstract":"The increased complexity of sample matrices resulted in the requirement of specific and sensitive molecular recognition systems. Although molecular imprinting is an old idea, its potential as molecular recognition tool in analytical chemistry has been revived in recent times. This review intended to comprehensively discuss and evaluate the recent progress in the applications of molecularly imprinted polymers (MIPs) in analytical chemistry. A concise introduction for new readers in the field is followed by the comprehensive critical review of these developments in MIP technology and their applications in analytical chemistry. This review is divided into three sections namely, extraction, sensors and chromatography. The three sections are further separated into several sub-sections. The applications related to compound extraction are subdivided into extraction of toxins and bioactive compound extraction. MIPs as sensors are subdivided into luminescence probes, surface plasmon resonance (SPR) sensors, quartz crystal microbalance (QCM) and electrochemical sensors. Finally, the MIP applications as stationary phase for chromatography are elaborated. This section is subdivided into HPLC and capillary electrochromatography (CEC). The significant aspects of applications of the molecular imprinting polymers in analytical chemistry are evaluated focusing majorly on literature appeared in last five years.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91477833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-03DOI: 10.1080/15422119.2018.1470537
Paloma Ortiz-Albo, Saúl Torres-Ortega, María González Prieto, A. Urtiaga, R. Ibáñez
Water and raw materials scarcity are challenges that our society faces today. Seawater desalination has become essential for the supply of fresh water mainly due to the development of seawater reverse osmosis (SWRO). The depletion of conventional extractable resources and the increase in the use of certain metals encourage the development of nonconventional sources. Attending to the increasing global desalination capacity, the extraction of minor components concentrated in the SWRO brines can become a valuable source of target compounds. This work evaluates the potential interest for extraction of minor components in SWRO concentrates. The target metals are selected attending to the relevance of their applications, the market trend, the depletion of conventional resources and the state of the art of the extraction technologies. The main challenges to be overcome are highlighted. Results are summarized in a ranking where the inputs for research are categorized in three levels resulting in a useful decision tool. Cs, In and Rb are pointed as promising metals to upgrade their extraction technologies from SWRO concentrates. Significant research contributions are needed in order to develop viable strategies for the recovery of valuable materials from SWRO brines.
{"title":"Techno-Economic Feasibility Analysis for Minor Elements Valorization from Desalination Concentrates","authors":"Paloma Ortiz-Albo, Saúl Torres-Ortega, María González Prieto, A. Urtiaga, R. Ibáñez","doi":"10.1080/15422119.2018.1470537","DOIUrl":"https://doi.org/10.1080/15422119.2018.1470537","url":null,"abstract":"Water and raw materials scarcity are challenges that our society faces today. Seawater desalination has become essential for the supply of fresh water mainly due to the development of seawater reverse osmosis (SWRO). The depletion of conventional extractable resources and the increase in the use of certain metals encourage the development of nonconventional sources. Attending to the increasing global desalination capacity, the extraction of minor components concentrated in the SWRO brines can become a valuable source of target compounds. This work evaluates the potential interest for extraction of minor components in SWRO concentrates. The target metals are selected attending to the relevance of their applications, the market trend, the depletion of conventional resources and the state of the art of the extraction technologies. The main challenges to be overcome are highlighted. Results are summarized in a ranking where the inputs for research are categorized in three levels resulting in a useful decision tool. Cs, In and Rb are pointed as promising metals to upgrade their extraction technologies from SWRO concentrates. Significant research contributions are needed in order to develop viable strategies for the recovery of valuable materials from SWRO brines.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73979623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-27DOI: 10.1080/15422119.2019.1632897
Julia Martín, A. Asuero
ABSTRACT Anthocyanins have a high potential in the food sector not only due to their coloring properties but also due to their high antioxidant activity. Their structural diversity, susceptibility to heat, pH, and copigmentation complicate its extraction and purification. The use of high hydrostatic pressure (HHP) assisted extraction has proven to be a good alternative to conventional techniques as it combines elevated pressure (100–800 MPa), moderate temperatures (30–60°C), and short processing times (3–10 min). The HHP process is based on the Pascal and Le Chatelier’s principles which state that pressure is uniformly transmitted and distributed in all directions. HHP allows the enhancement of mass transfer rates by increasing cell permeability and increasing the diffusion of secondary metabolite, which leading to higher extraction yields, fewer impurities on the final extract and the possibility of extractions at room temperature with preservation of thermo-sensitive structures. This review examines the basic principles of the HHP technology, including its mechanisms, analytical procedure and its effects on plant materials as well as a discussion on the most important parameters that affect the performance of this technology, its advantages, and disadvantages. Lastly, the applications of HHP for the recovery of phenolic compounds, with emphasis on anthocyanins, are discussed.
{"title":"High hydrostatic pressure for recovery of anthocyanins: effects, performance, and applications","authors":"Julia Martín, A. Asuero","doi":"10.1080/15422119.2019.1632897","DOIUrl":"https://doi.org/10.1080/15422119.2019.1632897","url":null,"abstract":"ABSTRACT Anthocyanins have a high potential in the food sector not only due to their coloring properties but also due to their high antioxidant activity. Their structural diversity, susceptibility to heat, pH, and copigmentation complicate its extraction and purification. The use of high hydrostatic pressure (HHP) assisted extraction has proven to be a good alternative to conventional techniques as it combines elevated pressure (100–800 MPa), moderate temperatures (30–60°C), and short processing times (3–10 min). The HHP process is based on the Pascal and Le Chatelier’s principles which state that pressure is uniformly transmitted and distributed in all directions. HHP allows the enhancement of mass transfer rates by increasing cell permeability and increasing the diffusion of secondary metabolite, which leading to higher extraction yields, fewer impurities on the final extract and the possibility of extractions at room temperature with preservation of thermo-sensitive structures. This review examines the basic principles of the HHP technology, including its mechanisms, analytical procedure and its effects on plant materials as well as a discussion on the most important parameters that affect the performance of this technology, its advantages, and disadvantages. Lastly, the applications of HHP for the recovery of phenolic compounds, with emphasis on anthocyanins, are discussed.","PeriodicalId":21744,"journal":{"name":"Separation & Purification Reviews","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91344015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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