1
|
Perez-Vazquez A, Carpena M, Barciela P, Cassani L, Simal-Gandara J, Prieto MA. Pressurized Liquid Extraction for the Recovery of Bioactive Compounds from Seaweeds for Food Industry Application: A Review. Antioxidants (Basel) 2023; 12:antiox12030612. [PMID: 36978860 PMCID: PMC10045370 DOI: 10.3390/antiox12030612] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 03/06/2023] Open
Abstract
Seaweeds are an underutilized food in the Western world, but they are widely consumed in Asia, with China being the world’s larger producer. Seaweeds have gained attention in the food industry in recent years because of their composition, which includes polysaccharides, lipids, proteins, dietary fiber, and various bioactive compounds such as vitamins, essential minerals, phenolic compounds, and pigments. Extraction techniques, ranging from more traditional techniques such as maceration to novel technologies, are required to obtain these components. Pressurized liquid extraction (PLE) is a green technique that uses high temperatures and pressure applied in conjunction with a solvent to extract components from a solid matrix. To improve the efficiency of this technique, different parameters such as the solvent, temperature, pressure, extraction time and number of cycles should be carefully optimized. It is important to note that PLE conditions allow for the extraction of target analytes in a short-time period while using less solvent and maintaining a high yield. Moreover, the combination of PLE with other techniques has been already applied to extract compounds from different matrices, including seaweeds. In this way, the combination of PLE-SFE-CO2 seems to be the best option considering both the higher yields obtained and the economic feasibility of a scaling-up approximation. In addition, the food industry is interested in incorporating the compounds extracted from edible seaweeds into food packaging (including edible coating, bioplastics and bio-nanocomposites incorporated into bioplastics), food products and animal feed to improve their nutritional profile and technological properties. This review attempts to compile and analyze the current data available regarding the application of PLE in seaweeds to determine the use of this extraction technique as a method to obtain active compounds of interest for food industry application.
Collapse
Affiliation(s)
- Ana Perez-Vazquez
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E32004 Ourense, Spain
| | - Maria Carpena
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E32004 Ourense, Spain
| | - Paula Barciela
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E32004 Ourense, Spain
| | - Lucia Cassani
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E32004 Ourense, Spain
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
- Correspondence: (L.C.); (J.S.-G.); (M.A.P.)
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E32004 Ourense, Spain
- Correspondence: (L.C.); (J.S.-G.); (M.A.P.)
| | - Miguel A. Prieto
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E32004 Ourense, Spain
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
- Correspondence: (L.C.); (J.S.-G.); (M.A.P.)
| |
Collapse
|
2
|
Xing R, Xue T, Ye P, Yang L, Wang R, Chen X, Hu S. pH-Responsive epitope-imprinted magnetic nanoparticles for selective separation and extraction of chlorogenic acid and caffeic acid in traditional Chinese medicines. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4931-4937. [PMID: 36441178 DOI: 10.1039/d2ay01667b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Chlorogenic acid and caffeic acid often coexist in traditional Chinese medicines (TCMs) and play roles as antioxidation, antiviral, antitumor and anti-inflammatory agents. Due to their low content and the presence of structural analogues, they cannot be effectively separated by conventional extraction methods. Molecularly imprinted polymers, as synthesized receptors with antibody-like binding properties, have significant advantages in separating structural analogues. However, the harsh imprinting conditions easily induced the degradation of chlorogenic acid. Therefore, caffeic acid was used as an epitope template to replace chlorogenic acid for imprinting. Boronic acid-functionalized magnetic nanoparticles (MNPs) were selected as substrates, which could not only facilitate the immobilization and removal of the templates by pH regulation, but also achieve rapid separation under an external magnetic field. Tetraethyl orthosilicate was selected as an imprinting monomer which allowed for precise control of the thickness of the imprinting layer by adjusting the imprinting time. The prepared epitope-imprinted MNPs showed excellent specificity, in combination with high performance liquid chromatography, have been successfully applied to the selective separation and detection of chlorogenic acid and caffeic acid in TCMs.
Collapse
Affiliation(s)
- Rongrong Xing
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Tingyu Xue
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Peng Ye
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Li Yang
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Runqin Wang
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Xuan Chen
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Shuang Hu
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| |
Collapse
|
3
|
Evaluation of Phenolic Compounds and Pigments in Freshwater Cladophora glomerata Biomass from Various Lithuanian Rivers as a Potential Future Raw Material for Biotechnology. WATER 2022. [DOI: 10.3390/w14071138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Freshwater macroalgae produces a wide range of bioactive compounds, and interest in utilizing its biomass is growing rapidly. Meanwhile, exploiting renewable sources for biomass collection could lead to more sustainable biotechnological chains. The aim of this study was to investigate Cladophora glomerata biomass from Lithuanian rivers as a potential raw material for biotechnology. For this reason, phenolic compound profiles, antioxidant activity and pigment concentrations were determined in macroalgal biomass samples collected from the following four Lithuanian rivers: Dubysa (B1), Šventoji (B2), Nevėžis (B3) and Jūra (B4). The highest total phenolic compound content was determined in B3 (1.32 mg GAE/g). Three phenolic acids were identified, namely gallic (12.94–35.13 µg/g), p-hydroxybenzoic (23.97–29.05 µg/g) and p-coumaric (1.79–6.46 µg/g). The results indicate significant C. glomerata antioxidant activity; the highest reducing power reached 0.737 AU (B3), the total antioxidant content was 1.47 mg Trolox/g (B3), DPPH and ABTS radical scavenging was 11.09% (B3) and 97.86% (B1) and FRAP activity 20.86 µmol/L (B3). The content of pigments ranged from 0.56-0.74, 0.39–0.57, 0.17–0.23 to 0.11–0.17 mg/g in chlorophyll a, b, carotenoids, and lutein, respectively. To conclude, C. glomerata macroalgal biomass may have the potential to act as a functional raw material, as several groups of bioactive compounds and antioxidant activities were observed.
Collapse
|
4
|
Wang M, Zhou J, Tavares J, Pinto CA, Saraiva JA, Prieto MA, Cao H, Xiao J, Simal-Gandara J, Barba FJ. Applications of algae to obtain healthier meat products: A critical review on nutrients, acceptability and quality. Crit Rev Food Sci Nutr 2022; 63:8357-8374. [PMID: 35357258 DOI: 10.1080/10408398.2022.2054939] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Meat constitutes one the main protein sources worldwide. However, ethical and health concerns have limited its consumption over the last years. To overcome this negative impact, new ingredients from natural sources are being applied to meat products to obtain healthier proteinaceous meat products. Algae is a good source of unsaturated fatty acids, proteins, essential amino acids, and vitamins, which can nutritionally enrich several foods. On this basis, algae have been applied to meat products as a functional ingredient to obtain healthier meat-based products. This paper mainly reviews the bioactive compounds in algae and their application in meat products. The bioactive ingredients present in algae can give meat products functional properties such as antioxidant, neuroprotective, antigenotoxic, resulting in healthier foods. At the same time, algae addition to foods can also contribute to delay microbial spoilage extending shelf-life. Additionally, other algae-based applications such as for packaging materials for meat products are being explored. However, consumers' acceptance for new products (particularly in Western countries), namely those containing algae, not only depends on their knowledge, but also on their eating habits. Therefore, it is necessary to further explore the nutritional properties of algae-containing meat products to overcome the gap between new meat products and traditional products, so that healthier algae-containing meat can occupy a significant place in the market.
Collapse
Affiliation(s)
- Min Wang
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Paterna, Valencia, Spain
| | - Jianjun Zhou
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Paterna, Valencia, Spain
| | - Jéssica Tavares
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Carlos A Pinto
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Jorge A Saraiva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Miguel A Prieto
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Hui Cao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Francisco J Barba
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
| |
Collapse
|
5
|
Carreira-Casais A, Otero P, Garcia-Perez P, Garcia-Oliveira P, Pereira AG, Carpena M, Soria-Lopez A, Simal-Gandara J, Prieto MA. Benefits and Drawbacks of Ultrasound-Assisted Extraction for the Recovery of Bioactive Compounds from Marine Algae. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9153. [PMID: 34501743 PMCID: PMC8431298 DOI: 10.3390/ijerph18179153] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/13/2021] [Accepted: 08/27/2021] [Indexed: 11/22/2022]
Abstract
The increase in life expectancy has led to the appearance of chronic diseases and interest in healthy aging, in turn promoting a growing interest in bioactive compounds (BCs) and functional ingredients. There are certain foods or products rich in functional ingredients, and algae are one of them. Algae consumption has been nominal in Europe until now. However, in recent years, it has grown significantly, partly due to globalization and the adoption of new food trends. With the aim of obtaining BCs from foods, multiple methods have been proposed, ranging from conventional ones, such as maceration or Soxhlet extraction, to more innovative methods, e.g., ultrasound-assisted extraction (UAE). UAE constitutes a novel method, belonging to so-called green chemistry, that enables the extraction of BCs requiring lower amounts of solvent and energy costs, preserving the integrity of such molecules. In recent years, this method has been often used for the extraction of different BCs from a wide range of algae, especially polysaccharides, such as carrageenans and alginate; pigments, including fucoxanthin, chlorophylls, or β-carotene; and phenolic compounds, among others. In this way, the application of UAE to marine algae is an efficient and sustainable strategy to pursue their deep characterization as a new source of BCs, especially suitable for vegetarian and vegan diets.
Collapse
Affiliation(s)
- Anxo Carreira-Casais
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
| | - Paz Otero
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
| | - Pascual Garcia-Perez
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
| | - Paula Garcia-Oliveira
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Antia G. Pereira
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Maria Carpena
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
| | - Anton Soria-Lopez
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
| | - Miguel A. Prieto
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Ourense Campus, University of Vigo, E-32004 Ourense, Spain; (A.C.-C.); (P.O.); (P.G.-P.); (P.G.-O.); (A.G.P.); (M.C.); (A.S.-L.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| |
Collapse
|
6
|
Pereira AG, Fraga-Corral M, Garcia-Oliveira P, Lourenço-Lopes C, Carpena M, Prieto MA, Simal-Gandara J. The Use of Invasive Algae Species as a Source of Secondary Metabolites and Biological Activities: Spain as Case-Study. Mar Drugs 2021; 19:178. [PMID: 33805184 PMCID: PMC8064379 DOI: 10.3390/md19040178] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 12/23/2022] Open
Abstract
In the recent decades, algae have proven to be a source of different bioactive compounds with biological activities, which has increased the potential application of these organisms in food, cosmetic, pharmaceutical, animal feed, and other industrial sectors. On the other hand, there is a growing interest in developing effective strategies for control and/or eradication of invasive algae since they have a negative impact on marine ecosystems and in the economy of the affected zones. However, the application of control measures is usually time and resource-consuming and not profitable. Considering this context, the valorization of invasive algae species as a source of bioactive compounds for industrial applications could be a suitable strategy to reduce their population, obtaining both environmental and economic benefits. To carry out this practice, it is necessary to evaluate the chemical and the nutritional composition of the algae as well as the most efficient methods of extracting the compounds of interest. In the case of northwest Spain, five algae species are considered invasive: Asparagopsis armata, Codium fragile, Gracilaria vermiculophylla, Sargassum muticum, and Grateulopia turuturu. This review presents a brief description of their main bioactive compounds, biological activities, and extraction systems employed for their recovery. In addition, evidence of their beneficial properties and the possibility of use them as supplement in diets of aquaculture animals was collected to illustrate one of their possible applications.
Collapse
Affiliation(s)
- Antia G. Pereira
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain; (A.G.P.); (M.F.-C.); (P.G.-O.); (C.L.-L.); (M.C.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Maria Fraga-Corral
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain; (A.G.P.); (M.F.-C.); (P.G.-O.); (C.L.-L.); (M.C.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Paula Garcia-Oliveira
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain; (A.G.P.); (M.F.-C.); (P.G.-O.); (C.L.-L.); (M.C.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Catarina Lourenço-Lopes
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain; (A.G.P.); (M.F.-C.); (P.G.-O.); (C.L.-L.); (M.C.)
| | - Maria Carpena
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain; (A.G.P.); (M.F.-C.); (P.G.-O.); (C.L.-L.); (M.C.)
| | - Miguel A. Prieto
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain; (A.G.P.); (M.F.-C.); (P.G.-O.); (C.L.-L.); (M.C.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E32004 Ourense, Spain; (A.G.P.); (M.F.-C.); (P.G.-O.); (C.L.-L.); (M.C.)
| |
Collapse
|
7
|
Del Mondo A, Smerilli A, Ambrosino L, Albini A, Noonan DM, Sansone C, Brunet C. Insights into phenolic compounds from microalgae: structural variety and complex beneficial activities from health to nutraceutics. Crit Rev Biotechnol 2021; 41:155-171. [PMID: 33530761 DOI: 10.1080/07388551.2021.1874284] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Phenolic compounds (PCs) are a family of secondary metabolites with recognized biological activities making them attractive for the biomedical "red" biotechnology. The development of the eco-sustainable production of natural bioactive metabolites requires using easy cultivable organisms, such as microalgae, which represents one of the most promising sources for biotechnological applications. Microalgae are photosynthetic organisms inhabiting aquatic systems, displaying high levels of biological and functional diversities, and are well-known producers of fatty acids and carotenoids. They are also rich in other families of bioactive molecules e.g. phenolic compounds. Microalgal PCs however are less investigated than other molecular components. This study aims to provide a state-of-art picture of the actual knowledge on microalgal phenolic compounds, reviewing information on the PC content variety and chemodiversity in microalgae, their environmental modulation, and we aim to report discuss data on PC biosynthetic pathways. We report the challenges of promoting microalgae as a relevant source of natural PCs, further enhancing the interests of microalgal "biofactories" for biotechnological applications (i.e. nutraceutical, pharmacological, or cosmeceutical products).
Collapse
Affiliation(s)
- Angelo Del Mondo
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| | - Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| | - Luca Ambrosino
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| | - Adriana Albini
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, Milan, Italy
| | - Douglas M Noonan
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, Milan, Italy.,Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| |
Collapse
|
8
|
Shen P, Gu Y, Zhang C, Sun C, Qin L, Yu C, Qi H. Metabolomic Approach for Characterization of Polyphenolic Compounds in Laminaria japonica, Undaria pinnatifida, Sargassum fusiforme and Ascophyllum nodosum. Foods 2021; 10:foods10010192. [PMID: 33477846 PMCID: PMC7832864 DOI: 10.3390/foods10010192] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 11/25/2022] Open
Abstract
Profiling of polyphenolics in four types of brown macroalgae, namely Laminaria japonica (L. japonica), Undaria pinnatifida (U. pinnatifida), Sargassum fusiforme (S. fusiforme), and Ascophyllum nodosum (A. nodosum), and their effect on oxidation resistance were investigated for the first time. Polyphenolic extracts from marine brown macroalgae were shown to effectively remove oxidants from cells and cellular systems. A. nodosum showed the highest antioxidant activity among evaluated brown macroalgae, showing a better scavenging effect on 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical and alleviating oxidative damage caused by hydrogen peroxide to human keratinocytes (HaCaT) cells. Through Q-Exactive HF-X mass spectrometry analysis, 12 polyphenolic compounds were preliminarily identified, including phlorotannins, phenolic acids, and flavonoids. Significant differences in content and variety of polyphenolics were found in evaluated brown macroalgae, which could be related to differences in antioxidant activity in vivo and in vitro. Moreover, the antioxidant activity might be related to the total phenolic content and the types of polyphenolics, especially phlorotannins. The findings presented in this study indicate that A. nodosum could be used as an important substitute for functional ingredients in foods and pharmaceutical preparations, as well as a raw material for phlorotannins research.
Collapse
Affiliation(s)
- Ping Shen
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (P.S.); (Y.G.); (L.Q.)
| | - Yue Gu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (P.S.); (Y.G.); (L.Q.)
| | - Chunxu Zhang
- School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian 116034, China;
| | - Chenghang Sun
- Department of Biochemical Engineering, Chaoyang Teachers College, Chaoyang 122000, China;
| | - Lei Qin
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (P.S.); (Y.G.); (L.Q.)
| | - Chenxu Yu
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA;
| | - Hang Qi
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (P.S.); (Y.G.); (L.Q.)
- Correspondence: ; Tel.: +86-411-86318785
| |
Collapse
|
9
|
Jimenez-Lopez C, Pereira AG, Lourenço-Lopes C, Garcia-Oliveira P, Cassani L, Fraga-Corral M, Prieto MA, Simal-Gandara J. Main bioactive phenolic compounds in marine algae and their mechanisms of action supporting potential health benefits. Food Chem 2020; 341:128262. [PMID: 33038800 DOI: 10.1016/j.foodchem.2020.128262] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 09/11/2020] [Accepted: 09/27/2020] [Indexed: 12/17/2022]
Abstract
Given the growing tendency of consumers to choose products with natural ingredients, food industries have directed scientific research in this direction. In this regard, algae are an attractive option for the research, since they can synthesize a group of secondary metabolites, called phenolic compounds, associated with really promising properties and bioactivities. The objective of this work was to classify the major phenolic compounds, compare the effectiveness of the different extractive techniques used for their extraction, from traditional systems (like heat assisted extraction) to the most advance ones (such as ultrasound, microwave or supercritical fluid extraction); the available methods for identification and quantification; the stability of the enriched extract in phenolic compounds and the main bioactivities described for these secondary metabolites, to offer an overview of the situation to consider if it is possible and/or convenient an orientation of phenolic compounds from algae towards an industrial application.
Collapse
Affiliation(s)
- C Jimenez-Lopez
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - A G Pereira
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - C Lourenço-Lopes
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain
| | - P Garcia-Oliveira
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - L Cassani
- Research Group of Food Engineering, Faculty of Engineering, National University of Mar del Plata, RA7600 Mar del Plata, Argentina
| | - M Fraga-Corral
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - M A Prieto
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain.
| | - J Simal-Gandara
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, Spain.
| |
Collapse
|
10
|
Mateos R, Pérez-Correa JR, Domínguez H. Bioactive Properties of Marine Phenolics. Mar Drugs 2020; 18:E501. [PMID: 33007997 PMCID: PMC7601137 DOI: 10.3390/md18100501] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/15/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023] Open
Abstract
Phenolic compounds from marine organisms are far less studied than those from terrestrial sources since their structural diversity and variability require powerful analytical tools. However, both their biological relevance and potential properties make them an attractive group deserving increasing scientific interest. The use of efficient extraction and, in some cases, purification techniques can provide novel bioactives useful for food, nutraceutical, cosmeceutical and pharmaceutical applications. The bioactivity of marine phenolics is the consequence of their enzyme inhibitory effect and antimicrobial, antiviral, anticancer, antidiabetic, antioxidant, or anti-inflammatory activities. This review presents a survey of the major types of phenolic compounds found in marine sources, as well as their reputed effect in relation to the occurrence of dietary and lifestyle-related diseases, notably type 2 diabetes mellitus, obesity, metabolic syndrome, cancer and Alzheimer's disease. In addition, the influence of marine phenolics on gut microbiota and other pathologies is also addressed.
Collapse
Affiliation(s)
- Raquel Mateos
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), José Antonio Nováis 10, 28040 Madrid, Spain;
| | - José Ricardo Pérez-Correa
- Department of Chemical and Bioprocess Engineering, Pontificia Universidad Católica de Chile, Macul, Santiago 7810000, Chile;
| | - Herminia Domínguez
- CINBIO, Department of Chemical Engineering, Faculty of Sciences, Campus Ourense, Universidade de Vigo, As Lagoas, 32004 Ourense, Spain
| |
Collapse
|
11
|
Rudke AR, de Andrade CJ, Ferreira SRS. Kappaphycus alvarezii macroalgae: An unexplored and valuable biomass for green biorefinery conversion. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.07.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
12
|
Korzeniowska K, Łęska B, Wieczorek PP. Isolation and determination of phenolic compounds from freshwater Cladophora glomerata. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101912] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
13
|
Ye P, Lu J, Li M, Zhang H, Chen Y, Wei F. Comprehensive analysis of the compound profiles of Folium Camelliae Nitidissimae extract by ultrafast liquid chromatography with quadrupole-time-of-flight mass spectrometry and hepatoprotective effect against CCl 4 -induced liver injury in mice. Biomed Chromatogr 2020; 34:e4817. [PMID: 32112425 DOI: 10.1002/bmc.4817] [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: 11/14/2019] [Revised: 02/15/2020] [Accepted: 02/25/2020] [Indexed: 11/08/2022]
Abstract
Folium Camelliae Nitidissimae (jinhuacha in Chinese, JHC) is a kind of caffeine-less tea with antioxidant, antitumor and antibacterial effects. Studies on the chemical profiles and hepatoprotective effects of JHC extracts have not been systematically conducted so far. This study comprehensively investigated the compound profiles of JHC extract by ultrafast liquid chromatography with quadrupole time-of-flight tandem mass spectrometry. We also determined JHC's hepatoprotective effects against CCl4 -induced liver injury in mice. A JHC extract was administered orally to mice at 1.95 and 7.80 g/kg body weight once daily for 14 consecutive days prior to CCl4 treatment. Eighty-four compounds including flavonoids, organic acids, catechins, coumarins, phenylpropanol, amino acids, anthraquinones, saponins and nucleosides in JHC extract were authentically identified or tentatively identified by comparing MS information and retention times with those of authentic standards or available references. JHC administration significantly decreased elevated levels of aspartate aminotransferase and alanine aminotransferase in mouse serum, inhibited hepatic malondialdehyde formation and enhanced glutathione and superoxide dismutase activities in the liver of CCl4 -treated mice. The histological observations also further supported the results. These results demonstrate that JHC contains various chemical compounds and its hepatoprotective effects against CCl4 -induced liver injury correlated with decreasing lipid oxidation are significant.
Collapse
Affiliation(s)
- Peiwen Ye
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jingya Lu
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Meichang Li
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Hongwei Zhang
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yuyao Chen
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Fenghuan Wei
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| |
Collapse
|
14
|
Abdelhamid A, Lajili S, Elkaibi MA, Ben Salem Y, Abdelhamid A, Muller CD, Majdoub H, Kraiem J, Bouraoui A. Optimized Extraction, Preliminary Characterization and Evaluation of the in Vitro Anticancer Activity of Phlorotannin-Rich Fraction from the Brown Seaweed, Cystoseira sedoides. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2019. [DOI: 10.1080/10498850.2019.1662865] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Amal Abdelhamid
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Faculté de Pharmacie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Sirine Lajili
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Faculté de Pharmacie de Monastir, Université de Monastir, Monastir, Tunisie
- Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Mohamed Amine Elkaibi
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Faculté de Pharmacie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Yosra Ben Salem
- Laboratoire des Interfaces et des Matériaux Avancés (LIMA), Faculté des Sciences de Monastir, Université de Monastir, Boulevard de l’environnement, Monastir, Tunisie
| | - Ameni Abdelhamid
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Faculté de Pharmacie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Christian D. Muller
- Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Hatem Majdoub
- Laboratoire des Interfaces et des Matériaux Avancés (LIMA), Faculté des Sciences de Monastir, Université de Monastir, Boulevard de l’environnement, Monastir, Tunisie
| | - Jamil Kraiem
- Laboratoire des Interfaces et des Matériaux Avancés (LIMA), Faculté des Sciences de Monastir, Université de Monastir, Boulevard de l’environnement, Monastir, Tunisie
| | - Abderrahman Bouraoui
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09), Faculté de Pharmacie de Monastir, Université de Monastir, Monastir, Tunisie
| |
Collapse
|
15
|
Moreda-Piñeiro J, Moreda-Piñeiro A. Combined assisted extraction techniques as green sample pre-treatments in food analysis. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.05.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
16
|
Yu D, Liang X. Characterization and Identification of Isoflavonoids in the Roots of Millettia speciosa Champ. by UPLC-Q-TOF-MS/MS. CURR PHARM ANAL 2019. [DOI: 10.2174/1573412914666180608095922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Introduction:
The root of Millettia speciosa Champ. (Leguminosae) is one of the wellknown
traditional Chinese medicines abundant in phenolic compounds and plays important roles in the
treatment of pain or numbness of the joints, blood deficiency sallow, chronic bronchitis and chronic
hepatitis.
Objective:
An ultra-high performance liquid chromatography coupled with quadrupole time-of-flight
mass spectrometry (UPLC-Q-TOF-MS/MS) based chemical profiling approach was established for the
separation and characterization of isoflavonoids in the roots of Millettia speciosa Champ.
Methods:
The roots of Millettia speciosa Champ. were prepared by ethanol extraction followed by further
extraction with chloroform. The extracts were analyzed by UPLC-Q-TOF-MS in positive and negative
electrospray ion modes at different Collision Energy (CE) values.
Results:
A total of 48 components were simultaneously detected, of which 38 components, including 21
isoflavones, 4 phenolic acids, 4 isoflavanones, 2 phenolic aldehydes, 2 flavanones, 1 aliphatic acid, 1
chalcone, 1 flavonol, 1 isoflavane and 1 pterocarpan were unambiguously identified or tentatively assigned
based on the retention time, UV spectra, characteristic molecular ions, MS/MS fragmentation
data and reference standards. The isomers of isoflavonoids were distinguished using accurate mass, the
diagnostic fragmentations of C-ring and UV spectra. The major diagnostic fragment ions of isoflavonoids
were observed and the corresponding fragmentation pathways were proposed.
Conclusion:
This investigation provides important analysis data for further quality control, pharmacological
and toxicological research on Millettia speciosa Champ.
Collapse
Affiliation(s)
- Dandan Yu
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Xianrui Liang
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| |
Collapse
|
17
|
Selective extraction of 3,4-dihydroxybenzoic acid in Ilex chinensis Sims by meticulous mini-solid-phase microextraction using ternary deep eutectic solvent-based molecularly imprinted polymers. Anal Bioanal Chem 2018; 410:7849-7858. [DOI: 10.1007/s00216-018-1406-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/15/2018] [Accepted: 09/25/2018] [Indexed: 12/11/2022]
|
18
|
Rajauria G. Optimization and validation of reverse phase HPLC method for qualitative and quantitative assessment of polyphenols in seaweed. J Pharm Biomed Anal 2018; 148:230-237. [PMID: 29055247 DOI: 10.1016/j.jpba.2017.10.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 09/27/2017] [Accepted: 10/04/2017] [Indexed: 10/18/2022]
Abstract
A simple reverse phase-high performance liquid chromatography (RP-HPLC) coupled to a diode array detector (DAD) and negative ion electrospray mass spectrometer (ESI-MS) method was developed for simultaneous identification and quantification of phenolic antioxidants in seaweed. The proposed method was validated in terms of linearity, limits of detection (LOD), limits of quantification (LOQ), recovery and intermediate precision. The calibration curves were linear with correlation coefficient ranging from 0.9909 to 0.9997 while the values of LOD (0.26-0.82mg/L), LOQ (0.77-2.50mg/L), recovery (≥97.2%) and precision in terms of retention time (%RSD ≤2.27) and peak area (% RSD ≤5.11) were satisfactory. Brown seaweed Himanthalia elongata used in this study was extracted with 60% methanol and the crude extract was cleaned with SPE (Solid Phase Extraction) cartridge. HPLC-DAD-MS/MS analysis of the SPE fraction allowed the identification of 7 phenolic compounds comprising phlorotannins, hydroxybenzoic acid, hydroxycinnamic acid and flavonols subclasses of polyphenols. Quantitative analysis of these compounds revealed the presence of phloroglucinol (394.1±4.33μg/g), gallic acid (96.3±3.12μg/g), chlorogenic acid (38.8±1.94μg/g), caffeic acid (44.4±2.72μg/g), ferulic acid (17.6±0.85μg/g), myricetin (8.6±0.85μg/g) and quercetin (4.2±0.15μg/g), in the extract. The SPE fraction were tested for antioxidant capacity which were significantly (P <0.05) higher (EC50; 14.5±0.57mg/g) than the ascorbic acid (EC50; 35.8±0.59mg/g) and the crude extract (EC50; 46.3±0.48mg/g). The occurrence of all these phenolic antioxidant compounds in H. elongata extract suggested that the developed method is sensitive enough and reproducible and could be used for qualitative and quantitative assessment of polyphenols in seaweed.
Collapse
Affiliation(s)
- Gaurav Rajauria
- School of Agriculture and Food Science, University College Dublin, Lyons Research Farm, Celbridge, Co. Kildare, Ireland.
| |
Collapse
|
19
|
|
20
|
Li G, Row KH. Magnetic hybrid imprinted polymers with three-templates modified by DESs for the rapid purification of monosaccharide from seaweed. J LIQ CHROMATOGR R T 2017. [DOI: 10.1080/10826076.2017.1402186] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Guizhen Li
- Department of Chemistry and Chemical Engineering, Inha University, Incheon, Korea
| | - Kyung Ho Row
- Department of Chemistry and Chemical Engineering, Inha University, Incheon, Korea
| |
Collapse
|
21
|
Wang R, Seyedsayamdost MR. Roseochelin B, an Algaecidal Natural Product Synthesized by the Roseobacter Phaeobacter inhibens in Response to Algal Sinapic Acid. Org Lett 2017; 19:5138-5141. [PMID: 28920692 DOI: 10.1021/acs.orglett.7b02424] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The secondary metabolome of the representative Roseobacter, Phaeobacter inhibens, was examined in response to algal sinapic acid. In addition to roseobacticides, sinapic acid induced the production of two new natural products, roseochelin A and B, which were characterized by NMR and X-ray crystallography. Functional assays showed that roseochelin B binds iron and is algaecidal against the algal host Emiliania huxleyi. It appears to be produced by a rarely observed combination of nonenzymatic and enzymatic transformations.
Collapse
Affiliation(s)
- Rurun Wang
- Department of Chemistry, Princeton University , Princeton, New Jersey 08544, United States
| | - Mohammad R Seyedsayamdost
- Department of Chemistry, Princeton University , Princeton, New Jersey 08544, United States.,Department of Molecular Biology, Princeton University , Princeton, New Jersey 08544, United States
| |
Collapse
|