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Jadon N, Tomar P, Shrivastava S, Hosseinzadeh B, Kaya SI, Ozkan SA. Monitoring of Specific Phytoestrogens by Dedicated Electrochemical Sensors: A Review. Food Chem 2024; 460:140404. [PMID: 39068721 DOI: 10.1016/j.foodchem.2024.140404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 07/05/2024] [Accepted: 07/07/2024] [Indexed: 07/30/2024]
Abstract
Phytoestrogens are non-steroidal estrogens produced from plants that can bind with the human body's estrogenic receptor site and be used as a substitute for maintaining hormonal balance. They are mainly classified as flavonoids, phenolic acids, lignans, stilbenes, and coumestans; some are resocyclic acids of lactones, which are mycotoxins and not natural phytoestrogen. Phytoestrogens have many beneficial medicinal properties, making them an important part of the daily diet. Electrochemical sensors are widely used analytical tools for analysing various pharmaceuticals, chemicals, pollutants and food items. Electrochemical sensors provide an extensive platform for highly sensitive and rapid analysis. Several reviews have been published on the importance of the biological and medicinal properties of phytoestrogens. However, this review provides an overview of recent work performed through electrochemical measurements with electrochemical sensors and biosensors for all the classes of phytoestrogens done so far since 2019.
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Affiliation(s)
- Nimisha Jadon
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Türkiye; School of Studies in Environmental Chemistry, Jiwaji University, Gwalior, M.P., 474011, India.
| | - Puja Tomar
- School of Studies in Environmental Chemistry, Jiwaji University, Gwalior, M.P., 474011, India
| | - Swati Shrivastava
- School of Studies in Environmental Chemistry, Jiwaji University, Gwalior, M.P., 474011, India
| | - Batoul Hosseinzadeh
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Türkiye
| | - S Irem Kaya
- University of Health Sciences, Gulhane Faculty of Pharmacy, Department of Analytical Chemistry, Ankara, Türkiye
| | - Sibel A Ozkan
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Türkiye.
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Coscarella M, Nardi M, Alipieva K, Bonacci S, Popova M, Procopio A, Scarpelli R, Simeonov S. Alternative Assisted Extraction Methods of Phenolic Compounds Using NaDESs. Antioxidants (Basel) 2023; 13:62. [PMID: 38247486 PMCID: PMC10812405 DOI: 10.3390/antiox13010062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/16/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
A renewed understanding of eco-friendly principles is moving the industrial sector toward a shift in the utilization of less harmful solvents as a main strategy to improve manufacturing. Green analytical chemistry (GAC) has definitely paved the way for this transition by presenting green solvents to a larger audience. Among the most promising, surely DESs (deep eutectic solvents), NaDESs (natural deep eutectic solvents), HDESs (hydrophobic deep eutectic solvents), and HNaDESs (hydrophobic natural deep eutectic solvents), with their unique features, manifest a wide-range of applications, including their use as a means for the extraction of small bioactive compounds. In examining recent advancements, in this review, we want to focus our attention on some of the most interesting and novel 'solvent-free' extraction techniques, such as microwave-assisted extraction (MAE) and ultrasound-assisted extraction (UAE) in relation to the possibility of better exploiting DESs and NaDESs as plausible extracting solvents of the phenolic compounds (PCs) present in different matrices from olive oil components, such as virgin olive pomace, olive leaves and twigs, virgin and extra virgin olive oil (VOO and EVOO, respectively), and olive cake and olive mill wastewaters (OMWW). Therefore, the status of DESs and NaDESs is shown in terms of their nature, efficacy and selectivity in the extraction of bioactive phytochemicals such as secoiridoids, lignans, phenolic acids and alcohols. Related studies on experimental design and processes' optimization of the most promising DESs/NaDESs are also reviewed. In this framework, an extensive list of relevant works found in the literature is described to consider DESs/NaDESs as a suitable alternative to petrochemicals in cosmetics, pharmaceutical, or food applications.
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Affiliation(s)
- Mario Coscarella
- Department of Health Sciences, Università “Magna Græcia” di Catanzaro, Viale Europa, Campus Universitario “S. Venuta”, Germaneto, 88100 Catanzaro, Italy; (M.C.); (S.B.); (A.P.); (R.S.)
| | - Monica Nardi
- Department of Health Sciences, Università “Magna Græcia” di Catanzaro, Viale Europa, Campus Universitario “S. Venuta”, Germaneto, 88100 Catanzaro, Italy; (M.C.); (S.B.); (A.P.); (R.S.)
| | - Kalina Alipieva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bontchev Str. Bl. 9, 1113 Sofia, Bulgaria; (K.A.); (M.P.); (S.S.)
| | - Sonia Bonacci
- Department of Health Sciences, Università “Magna Græcia” di Catanzaro, Viale Europa, Campus Universitario “S. Venuta”, Germaneto, 88100 Catanzaro, Italy; (M.C.); (S.B.); (A.P.); (R.S.)
| | - Milena Popova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bontchev Str. Bl. 9, 1113 Sofia, Bulgaria; (K.A.); (M.P.); (S.S.)
| | - Antonio Procopio
- Department of Health Sciences, Università “Magna Græcia” di Catanzaro, Viale Europa, Campus Universitario “S. Venuta”, Germaneto, 88100 Catanzaro, Italy; (M.C.); (S.B.); (A.P.); (R.S.)
| | - Rosa Scarpelli
- Department of Health Sciences, Università “Magna Græcia” di Catanzaro, Viale Europa, Campus Universitario “S. Venuta”, Germaneto, 88100 Catanzaro, Italy; (M.C.); (S.B.); (A.P.); (R.S.)
| | - Svilen Simeonov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bontchev Str. Bl. 9, 1113 Sofia, Bulgaria; (K.A.); (M.P.); (S.S.)
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3
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Liu S, Jiang S, Yao Z, Liu M. Aflatoxin detection technologies: recent advances and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:79627-79653. [PMID: 37322403 DOI: 10.1007/s11356-023-28110-x] [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: 11/25/2022] [Accepted: 06/01/2023] [Indexed: 06/17/2023]
Abstract
Aflatoxins have posed serious threat to food safety and human health. Therefore, it is important to detect aflatoxins in samples rapidly and accurately. In this review, various technologies to detect aflatoxins in food are discussed, including conventional ones such as thin-layer chromatography (TLC), high performance liquid chromatography (HPLC), enzyme linked immunosorbent assay (ELISA), colloidal gold immunochromatographic assay (GICA), radioimmunoassay (RIA), fluorescence spectroscopy (FS), as well as emerging ones (e.g., biosensors, molecular imprinting technology, surface plasmon resonance). Critical challenges of these technologies include high cost, complex processing procedures and long processing time, low stability, low repeatability, low accuracy, poor portability, and so on. Critical discussion is provided on the trade-off relationship between detection speed and detection accuracy, as well as the application scenario and sustainability of different technologies. Especially, the prospect of combining different technologies is discussed. Future research is necessary to develop more convenient, more accurate, faster, and cost-effective technologies to detect aflatoxins.
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Affiliation(s)
- Shenqi Liu
- School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China
| | - Shanxue Jiang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China
| | - Zhiliang Yao
- School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China.
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China.
| | - Minhua Liu
- School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China
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Goswami AK, Gogoi N, Sharma HK. Validated High-Performance Thin-Layer Chromatography-Mass Spectrometry Method and Stability Study of Linalool in the Volatile Oil of the Rhizomes of Homalomena aromatica Schott. J Chromatogr Sci 2023; 61:269-278. [PMID: 35178547 DOI: 10.1093/chromsci/bmac012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Indexed: 11/14/2022]
Abstract
Homalomena aromatica is a herb of tremendous ethnomedicinal importance to various communities residing in northeast India. In this study, a high-performance thin-layer chromatography-based densitometric method was developed for identification, quantification and stability study of linalool. Mass spectrometry was hyphenated to HPTLC for streamlining the method. The stability of linalool was studied by analyzing the effect of acid, base, UV, sunlight, thermal stress and H2O2 on linalool. The chromatographic plates were developed to a height of 70 mm in toluene:ethyl acetate solvent system at a ratio of 9.5:0.5 and visualized with p-anisaldehyde reagent. The developed method was found to be precise, accurate and reproducible according to International Conference on Harmonization guidelines, and compact bands of linalool were observed at Rf of 0.351 ± 0.001. The content of linalool in the volatile oil of H. aromatica was found to be 58% v/v. By application of the hyphenated MS technique, linalool was identified at m/z 137, (M + H)+. It was observed that acidic pH has the highest effect on linalool with a percentage degradation of 65. The developed method can be used in the analysis and quality control of herbal materials and volatile oils containing linalool and quality control of rhizomes of H. aromatica.
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Affiliation(s)
- Ashis Kumar Goswami
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh-786004, Assam, India
| | - Neelutpal Gogoi
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh-786004, Assam, India
| | - Hemanta Kumar Sharma
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh-786004, Assam, India
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Effect-Directed Profiling of Strawberry Varieties and Breeding Materials via Planar Chromatography and Chemometrics. Molecules 2022; 27:molecules27186062. [PMID: 36144791 PMCID: PMC9503288 DOI: 10.3390/molecules27186062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
Strawberries are an important fruit in the European diet because of their unique taste and high content of essential nutrients and bioactive compounds. The anthocyanins are known to be colorful phenolics in strawberries. In 17 samples of six strawberry cultivars produced in Serbia, i.e., the common varieties Alba, Asia, and Clery as well as promising breeding materials (11.29.11, 11.34.6, and 11.39.3), the anthocyanin profile as well as antimicrobial and antioxidative activity profiles were determined. All investigated extracts showed antioxidative and antibacterial activities against Gram-negative Aliivibrio fischeri. The responses were quite similar in number and intensity. The HPTLC-DPPH• scavenging assay and HPTLC-Aliivibrio fischeri bioassay coupled with high-resolution mass spectrometry identified pelargonidin-3-O-glucoside (Pg-3-glc) as the main anthocyanin and prominent antioxidative and antimicrobial compound in strawberries. The density functional theory calculations at the M06-2X/6-31+G(d,p) level showed that Pg-3-glc quenches free radicals via sequential proton loss electron transfer mechanism in water and in pentyl ethanoate, where the 5-OH group is the most reactive site for proton and hydrogen atom transfer. The results were confirmed via spectrophotometry. The highest total phenolic content was found in Clery and 11.39.3, while statistically significant differences between the genotypes regarding the antioxidant activity were not confirmed. Although very similar in the anthocyanin, antioxidative, and antimicrobial profile patterns, the strawberry genotypes were successfully classified using principal component analysis.
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Engel KM, Schiller J. The value of coupling thin-layer chromatography to mass spectrometry in lipid research - a review. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1185:123001. [PMID: 34715571 DOI: 10.1016/j.jchromb.2021.123001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 12/18/2022]
Abstract
Mass spectrometry has emerged as an extremely powerful analytical tool, which is widely used in many fields. This broad application range became possible with the invention of MALDI and ESI as "soft ionization" techniques that keep fragmentation of the analyte to a minimum. However, when these techniques are applied to mixture analysis, less-sensitively detectable compounds may be suppressed by more sensitively detectable compounds, a process called "ion suppression". Thus, previous separation of the mixture into the individual lipid classes is necessary to be able to detect all compounds. This review summarizes the current knowledge in the field of combined TLC/MS and discusses the most important strengths and weaknesses of the different MS (particularly ionization) techniques with respect to phospholipids. This comprises techniques such as MALDI and ESI, but less established approaches such as plasma desorption will be also discussed.
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Affiliation(s)
- Kathrin M Engel
- Leipzig University, Medical Faculty, Institute for Medical Physics and Biophysics, Germany.
| | - Jürgen Schiller
- Leipzig University, Medical Faculty, Institute for Medical Physics and Biophysics, Germany
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Bai ZZ, Tang JM, Ni J, Zheng TT, Zhou Y, Sun DY, Li GN, Liu P, Niu LX, Zhang YL. Comprehensive metabolite profile of multi-bioactive extract from tree peony (Paeonia ostii and Paeonia rockii) fruits based on MS/MS molecular networking. Food Res Int 2021; 148:110609. [PMID: 34507753 DOI: 10.1016/j.foodres.2021.110609] [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: 05/13/2021] [Revised: 07/08/2021] [Accepted: 07/11/2021] [Indexed: 10/20/2022]
Abstract
Tree peony seed, traditionally used for edible oil production, is rich in α-linolenic acid. However, little attention is given to the fruit by-products during seed oil production. The present work aimed to comprehensively investigate the phytochemical constituents and multiple biological activities of different parts of tree peony fruits harvested from Paeonia ostii and Paeonia rockii. 130 metabolites were rapidly identified through UPLC-Triple-TOF-MS on the basis of MS/MS molecular networking. Metabolite quantification was performed through the targeted approach of HPLC-ESI-QQQ-MS. Eight chemical markers were screened via principal component analysis (PCA) for distinguishing species and tissues. Interestingly, two dominant compounds, paeoniflorin and trans-resveratrol, are specially localized in seed kernel and seed coat, respectively. Unexpectedly, the extracts of fruit pod and seed coat showed significantly stronger antioxidant, antibacterial, and anti-neuroinflammatory activities than seed kernel from both P. ostii and P. rockii. Our work demonstrated that tree peony fruit is promising natural source of bioactive components and provided its potential utilization in food and pharmaceutical industries.
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Affiliation(s)
- Zhang-Zhen Bai
- National Engineering Technology Research Center for Oil Peony, College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
| | - Jun-Man Tang
- National Engineering Technology Research Center for Oil Peony, College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
| | - Jing Ni
- National Engineering Technology Research Center for Oil Peony, College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
| | - Tian-Tian Zheng
- National Engineering Technology Research Center for Oil Peony, College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
| | - Yang Zhou
- National Engineering Technology Research Center for Oil Peony, College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
| | - Dao-Yang Sun
- National Engineering Technology Research Center for Oil Peony, College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
| | | | - Pu Liu
- Chemical Engineering & Pharmaceutical College, Henan University of Science and Technology, Luoyang 471023, China.
| | - Li-Xin Niu
- National Engineering Technology Research Center for Oil Peony, College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China.
| | - Yan-Long Zhang
- National Engineering Technology Research Center for Oil Peony, College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China.
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Fibers Obtained from Invasive Alien Plant Species as a Base Material for Paper Production. FORESTS 2021. [DOI: 10.3390/f12050527] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Invasive alien plant species (IAPS) are one of the biggest challenges in European ecosystems, displacing local vegetation, destroying agricultural land, and causing billions of dollars of damage to the European economy every year. Many of them are removed daily and mainly burned. In this work, we investigated the possibilities of using plants as feedstock for paper production. Papers made from three invasive alien plants, i.e., Knotweed, Goldenrod, and Black locust, were studied and compared with commercial office paper. The study included testing of: (1) structural properties—basic physical properties, grammage, thickness, density and specific volume, moisture content, and ash content; (2) physical and dynamic mechanical properties—tensile strength, Clark stiffness, viscoelastic properties; (3) colorimetric properties of prints; (4) effect of UV light on ageing; and (5) study of cellulose fiber structure and morphology by microscopy. The results suggested that the paper produced can be used as commercial office paper, considering that the paper is slightly dyed. Such papers can also be used for special purposes that present a natural style and connection to nature. The papers produced can also be used for printing documents that are meant to be kept.
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Flavan-3-ols and Proanthocyanidins in Japanese, Bohemian and Giant Knotweed. PLANTS 2021; 10:plants10020402. [PMID: 33672472 PMCID: PMC7923414 DOI: 10.3390/plants10020402] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 11/17/2022]
Abstract
Flavan-3-ols and proanthocyanidins of invasive alien plants Japanese knotweed (Fallopia japonica Houtt.), giant knotweed (Fallopia sachalinensis F. Schmidt) and Bohemian knotweed (Fallopia × bohemica (Chrtek & Chrtkova) J.P. Bailey) were investigated using high performance thin-layer chromatography (HPTLC) coupled to densitometry, image analysis and mass spectrometry (HPTLC–MS/MS). (+)-Catechin, (−)-epicatechin, (−)-epicatechin gallate and procyanidin B2 were found in rhizomes of these three species, and for the first time in Bohemian knotweed. (−)-Epicatechin gallate, procyanidin B1, procyanidin B2 and procyanidin C1 were found in giant knotweed rhizomes for the first time. Rhizomes of Bohemian and giant knotweed have the same chemical profiles of proanthocyanidins with respect to the degree of polymerization and with respect to gallates. Japanese and Bohemian knotweed have equal chromatographic fingerprint profiles with the additional peak not present in giant knotweed. Within the individual species giant knotweed rhizomes and leaves have the most similar fingerprints, while the fingerprints of Japanese and Bohemian knotweed rhizomes have additional peaks not found in leaves. Rhizomes of all three species proved to be a rich source of proanthocyanidins, with the highest content in Japanese and the lowest in Bohemian knotweed (based on the total peak areas). The contents of monomers in Japanese, Bohemian and giant knotweed rhizomes were 2.99 kg/t of dry mass (DM), 1.52 kg/t DM, 2.36 kg/t DM, respectively, while the contents of dimers were 2.81 kg/t DM, 1.09 kg/t DM, 2.17 kg/t DM, respectively. All B-type proanthocyanidins from monomers to decamers (monomers—flavan-3-ols, dimers, trimers, tetramers, pentamers, hexamers, heptamers, octamers, nonamers and decamers) and some of their gallates (monomer gallates, dimer gallates, dimer digallates, trimer gallates, tetramer gallates, pentamer gallates and hexamer gallates) were identified in rhizomes of Bohemian knotweed and giant knotweed. Pentamer gallates, hexamers, hexamer gallates, nonamers and decamers were identified for the first time in this study in Bohemian and giant knotweed rhizomes.
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Jug U, Naumoska K, Vovk I. (-)-Epicatechin-An Important Contributor to the Antioxidant Activity of Japanese Knotweed Rhizome Bark Extract as Determined by Antioxidant Activity-Guided Fractionation. Antioxidants (Basel) 2021; 10:antiox10010133. [PMID: 33477734 PMCID: PMC7832395 DOI: 10.3390/antiox10010133] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 01/14/2023] Open
Abstract
The antioxidant activities of Japanese knotweed rhizome bark extracts, prepared with eight different solvents or solvent mixtures (water, methanol, 80% methanol(aq), acetone, 70% acetone(aq), ethanol, 70% ethanol(aq), and 90% ethyl acetate(aq)), were determined using a 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical-scavenging assay. Low half maximal inhibitory concentration (IC50) values (2.632–3.720 µg mL−1) for all the extracts were in the range of the IC50 value of the known antioxidant ascorbic acid at t0 (3.115 µg mL−1). Due to the highest extraction yield (~44%), 70% ethanol(aq) was selected for the preparation of the extract for further investigations. The IC50 value calculated for its antioxidant activity remained stable for at least 14 days, while the IC50 of ascorbic acid increased over time. The stability study showed that the container material was of great importance for the light-protected storage of the ascorbic acid(aq) solution in a refrigerator. Size exclusion–high-performance liquid chromatography (SEC-HPLC)–UV and reversed phase (RP)-HPLC-UV coupled with multistage mass spectrometry (MSn) were developed for fractionation of the 70% ethanol(aq) extract and for further compound identification, respectively. In the most potent antioxidant SEC fraction, determined using an on-line post-column SEC-HPLC-DPPH assay, epicatechin, resveratrol malonyl hexoside, and its in-source fragments (resveratrol and resveratrol acetyl hexoside) were tentatively identified by RP-HPLC-MSn. Moreover, epicatechin was additionally confirmed by two orthogonal methods, SEC-HPLC-UV and high-performance thin-layer chromatography (HPTLC) coupled with densitometry. Finally, the latter technique enabled the identification of (−)-epicatechin. (−)-Epicatechin demonstrated potent and stable time-dependent antioxidant activity (IC50 value ~1.5 µg mL−1) for at least 14 days.
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Affiliation(s)
- Urška Jug
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia;
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Katerina Naumoska
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia;
- Correspondence: (K.N.); (I.V.); Tel.: +386-1476-0521 (K.N.); +386-1476-0341 (I.V.)
| | - Irena Vovk
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia;
- Correspondence: (K.N.); (I.V.); Tel.: +386-1476-0521 (K.N.); +386-1476-0341 (I.V.)
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Jug U, Vovk I, Glavnik V, Makuc D, Naumoska K. Off-line multidimensional high performance thin-layer chromatography for fractionation of Japanese knotweed rhizome bark extract and isolation of flavan-3-ols, proanthocyanidins and anthraquinones. J Chromatogr A 2020; 1637:461802. [PMID: 33383239 DOI: 10.1016/j.chroma.2020.461802] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/01/2020] [Accepted: 12/12/2020] [Indexed: 10/22/2022]
Abstract
A methodology based on off-line multidimensional thin-layer chromatography was developed for isolation of several secondary metabolites from bark of Japanese knotweed (Fallopia japonica Houtt.) rhizomes. Successive fractionation steps using PLC silica gel and HPTLC silica gel or HPTLC cellulose plates in combination with various developing solvents enabled isolation of (+)-catechin, (-)-epicatechin, (-)-epicatechin gallate, procyanidin B1, procyanidin B2, procyanidin B3, proanthocyanidin B dimer gallate, emodin, emodin-8-O-glucoside and emodin-8-O-malonyl-glucoside. Their identity was confirmed by HPTLC, HPTLC-MSn and for most of them also by 1H NMR and 2D NMR analyses. To the best of our knowledge emodin-8-O-malonyl-glucoside, procyanidins B1 and B2 were for the first time isolated from this plant material. HPTLC and HPTLC-MSn analyses were also performed as support of fractionation/isolation process, leading to first detection of some compounds in bark of Japanese knotweed rhizomes and Japanese knotweed rhizomes in general: procyanidins B1 and B2, methyl derivatives of emodin bianthrone and emodin bianthrone-hexose, resveratrol-malonyl-hexoside and taxifolin derivatives. Characterization of flavan-3-ols and proanthocyanidins was facilitated by post-chromatographic derivatization of the corresponding chromatographic zones with 4-dimethylaminocinnamaldehyde (DMACA) detection reagent.
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Affiliation(s)
- Urška Jug
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia; Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1001 Ljubljana, Slovenia
| | - Irena Vovk
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia.
| | - Vesna Glavnik
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Damjan Makuc
- Slovenian NMR Centre, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Katerina Naumoska
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
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Glavnik V, Vovk I. Extraction of Anthraquinones from Japanese Knotweed Rhizomes and Their Analyses by High Performance Thin-Layer Chromatography and Mass Spectrometry. PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9121753. [PMID: 33322304 PMCID: PMC7764617 DOI: 10.3390/plants9121753] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/01/2020] [Accepted: 12/09/2020] [Indexed: 05/28/2023]
Abstract
Anthraquinones (yellow dyes) were extracted from Japanese knotweed rhizomes with twelve extraction solvents (water; ethanol(aq) (20%, 40%, 60%, 70% and 80%), ethanol, 70% methanol(aq), methanol, 70% acetone(aq), acetone and dichloromethane). The obtained sample test solutions (STSs) were analyzed using high-performance thin-layer chromatography (HPTLC) coupled to densitometry and mass spectrometry (HPTLC-MS/MS) on HPTLC silica gel plates. Identical qualitative densitometric profiles (with anthraquinone aglycones and glycosylated anthraquinones) were obtained for STSs in all the solvents except for the STS in dichloromethane, which enabled the most selective extractions of anthraquinone aglycones emodin and physcion. The highest extraction efficiency, evaluated by comparison of the total peak areas in the densitograms of all STSs scanned at 442 nm, was achieved for 70% acetone(aq). In STS prepared with 70% acetone(aq), the separation of non-glycosylated and glycosylated anthraquinones was achieved with developing solvents toluene-acetone-formic acid (6:6:1, 3:6:1 and 3:3:1 v/v) and dichloromethane-acetone-formic acid (1:1:0.1, v/v). Non-glycosylated anthraquinones were separated only with toluene-acetone-formic acid, among which the best resolution between emodin and physcion gave the ratio 6:6:1 (v/v). This solvent and dichloromethane-acetone-formic acid (1:1:0.1, v/v) enabled the best separation of glycosylated anthraquinones. Four HPTLC-MS/MS methods enabled the identification of emodin and tentative identification of its three glycosylated analogs (emodin-8-O-hexoside, emodin-O-acetyl-hexoside and emodin-O-malonyl-hexoside), while only the HPTLC-MS/MS method with toluene-acetone-formic acid (6:6:1, v/v) enabled the identification of physcion. Changes of the shapes and the absorption maxima (bathochromic shifts) in the absorption spectra after post-chromatographic derivatization provided additional proof for the detection of physcion and rejection of the presence of chrysophanol in STS.
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Ivanović M, Islamčević Razboršek M, Kolar M. Innovative Extraction Techniques Using Deep Eutectic Solvents and Analytical Methods for the Isolation and Characterization of Natural Bioactive Compounds from Plant Material. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1428. [PMID: 33114332 PMCID: PMC7690858 DOI: 10.3390/plants9111428] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/19/2020] [Accepted: 10/22/2020] [Indexed: 12/20/2022]
Abstract
The growing interest of the food, pharmaceutical and cosmetics industries in naturally occurring bioactive compounds or secondary plant metabolites also leads to a growing demand for the development of new and more effective analysis and isolation techniques. The extraction of bioactive compounds from plant material has always been a challenge, accompanied by increasingly strict control requirements for the final products and a growing interest in environmental protection. However, great efforts have been made in this direction and today a considerable number of innovative extraction techniques have been developed using green, environmentally friendly solvents. These solvents include the deep eutectic solvents (DES) and their natural equivalents, the natural deep eutectic solvents (NADES). Due to their adjustable physical-chemical properties and their green character, it is expected that DES/NADES could be the most widely used solvents in the future, not only in extraction processes but also in other research areas such as catalysis, electrochemistry or organic synthesis. Consequently, this review provided an up-to-date systematic overview of the use of DES/NADES in combination with innovative extraction techniques for the isolation of bioactive compounds from various plant materials. The topicality of the field was confirmed by a detailed search on the platform WoS (Web of Science), which resulted in more than 100 original research papers on DES/NADES for bioactive compounds in the last three years. Besides the isolation of bioactive compounds from plants, different analytical methods are presented and discussed.
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Affiliation(s)
- Milena Ivanović
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia;
| | - Maša Islamčević Razboršek
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia;
| | - Mitja Kolar
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, SI-1000 Ljubljana, Slovenia
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Assessment of Experimental Factors Affecting the Sensitivity and Selectivity of the Spectrophotometric Estimation of Proanthocyanidins in Foods and Nutraceuticals. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01878-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Toro-Uribe S, Herrero M, Decker EA, López-Giraldo LJ, Ibáñez E. Preparative Separation of Procyanidins from Cocoa Polyphenolic Extract: Comparative Study of Different Fractionation Techniques. Molecules 2020; 25:molecules25122842. [PMID: 32575615 PMCID: PMC7356151 DOI: 10.3390/molecules25122842] [Citation(s) in RCA: 5] [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: 05/25/2020] [Revised: 06/14/2020] [Accepted: 06/16/2020] [Indexed: 12/14/2022] Open
Abstract
To provide further insight into the antioxidant potential of procyanidins (PCs) from cocoa beans, PC extract was fractionated by several methodologies, including solid phase extraction, Sephadex LH-20 gel permeation, and preparative HPLC using C18 and diol stationary phases. All the isolated fractions were analyzed by UHPLC-QTOF-MS to determine their relative composition. According to our results, classical techniques allowed good separation of alkaloids, catechins, dimers, and trimers, but were inefficient for oligomeric PCs. Preparative C18-HPLC method allowed the attainment of high relative composition of fractions enriched with alkaloids, catechins, and PCs with degree of polymerization (DP) < 4. However, the best results were obtained by preparative diol-HPLC, providing a separation according to the increasing DP. According to the mass spectrometry fragmentation pattern, the nine isolated fractions (Fractions II–X) consisted of exclusively individual PCs and their corresponding isomers (same DP). In summary, an efficient, robust, and fast method using a preparative diol column for the isolation of PCs is proposed. Regarding DPPH• and ABTS•+ scavenging activity, it increases according to the DP; therefore, the highest activity was for cocoa extract > PCs > monomers. Thereby, cocoa procyanidins might be of interest to be used as alternative antioxidants.
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Affiliation(s)
- Said Toro-Uribe
- School of Chemical Engineering, Food Science & Technology Research Center (CICTA), Universidad Industrial de Santander, Carrera 27, Calle 9, Bucaramanga 68002, Colombia; (S.T.-U.); (L.J.L.-G.)
| | - Miguel Herrero
- Foodomics Laboratory, Institute of Food Science Research (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain;
| | - Eric A. Decker
- Chenoweth Laboratory, Department of Food Science, University of Massachusetts, 100 Holdsworth Way, Amherst, MA 01003, USA;
| | - Luis Javier López-Giraldo
- School of Chemical Engineering, Food Science & Technology Research Center (CICTA), Universidad Industrial de Santander, Carrera 27, Calle 9, Bucaramanga 68002, Colombia; (S.T.-U.); (L.J.L.-G.)
| | - Elena Ibáñez
- Foodomics Laboratory, Institute of Food Science Research (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain;
- Correspondence: ; Tel.: +34-91-001-7956; Fax: +34-91-001-7905
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Foam fractionation for the recovery of proanthocyanidin from Camellia seed shells using molecular imprinting chitosan nanoparticles as collector. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Dabić Zagorac DČ, Fotirić Akšić MM, Glavnik V, Gašić UM, Vovk I, Tešić ŽL, Natić MM. Establishing the chromatographic fingerprints of flavan‐3‐ols and proanthocyanidins from rose hip (
Rosa
sp.) species. J Sep Sci 2020; 43:1431-1439. [DOI: 10.1002/jssc.201901271] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/24/2020] [Accepted: 01/25/2020] [Indexed: 12/15/2022]
Affiliation(s)
| | | | - Vesna Glavnik
- Department of Food ChemistryNational Institute of Chemistry Ljubljana Slovenia
| | - Uroš M. Gašić
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of SerbiaUniversity of Belgrade Belgrade Serbia
| | - Irena Vovk
- Department of Food ChemistryNational Institute of Chemistry Ljubljana Slovenia
| | | | - Maja M. Natić
- Faculty of ChemistryUniversity of Belgrade Belgrade Serbia
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Sherma J, Rabel F. Review of advances in planar chromatography-mass spectrometry published in the period 2015–2019. J LIQ CHROMATOGR R T 2020. [DOI: 10.1080/10826076.2020.1725561] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Joseph Sherma
- Department of Chemistry, Lafayette College, Easton, PA, USA
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Interference of oleamide with analytical and bioassay results. Sci Rep 2020; 10:2163. [PMID: 32034225 PMCID: PMC7005802 DOI: 10.1038/s41598-020-59093-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 01/20/2020] [Indexed: 11/25/2022] Open
Abstract
During sample preparation and analysis, samples are coming in contact with different labware materials. By four unrelated analytical (phytochemical and pharmaceutical) case-studies and employing different analytical techniques, we demonstrated the potential misinterpretation of analytical results due to the use of contaminants-leaching labware during sample handling. Oleamide, a common polymer lubricant and a bioactive compound, was identified as a main analytical interference, leaching from different labware items into solvents, recognised as chemically compatible with the tested polymer material. Moreover, anti-inflammatory effect of oleamide at 100 μg mL−1 and considerable pro-inflammatory effect of the plastic syringe extractables (containing oleamide) at the same level were shown in a TLR4-based bioassay. Taking these results into account, together with the fact that oleamide can be a compound of natural origin, we would like to notify the professional public regarding the possible erroneous oleamide-related analytical and bioassay results due to the use of oleamide-leaching labware. Researchers are alerted to double check the real source of oleamide (labware or natural extract), which will prevent further reporting of false results. Analysis of procedural blanks with de-novo developed UHPLC-ESI-MS method is, among some other strategies, proposed for detection of oleamide interference and avoidance of misleading results of certain analyses.
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Mahran E, Keusgen M, Morlock GE. New planar assay for streamlined detection and quantification of β-glucuronidase inhibitors applied to botanical extracts. Anal Chim Acta X 2020; 4:100039. [PMID: 33117985 PMCID: PMC7587031 DOI: 10.1016/j.acax.2020.100039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/13/2020] [Accepted: 01/17/2020] [Indexed: 01/04/2023] Open
Abstract
The inhibition of the β-glucuronidase released from gut bacteria is associated with specific health-related benefits. Though a number of β-glucuronidase inhibition assays are currently in use, none of them can directly measure the relevant activity of each single constituent in a complex mixture, without prior separation and tedious isolation of the pure compounds. Thus, the hyphenation of the high performance thin layer chromatography (HPTLC) technique with a β-glucuronidase inhibition assay was investigated and successfully demonstrated for the first time. A colorimetric as well as fluorometric detection of the inhibitors was achieved using 5-bromo-4-chloro-3-indolyl-β-D-glucuronide as a substrate. Hence, β-glucuronidase inhibitors were detected as bright zones against an indigo blue or fluorescent background. The established method was optimized and validated employing the well-known inhibitor d-saccharic acid 1,4-lactone monohydrate. As proof of concept, the suitability of the new workflow was verified through analysis of two botanical extracts, Primula boveana and silymarin flavonolignans from Silybum marianum fruits. The found inhibitors were identified by spectroscopic methods; one of them, 3ʹ-O-(β-galactopyranosyl)-flavone, is here described as a newly isolated natural compound. The new hyphenation HPTLC-UV/Vis/FLD-β-glucuronidase inhibition assay-HRMS covers four orthogonal dimensions, i.e. separation, spectral detection, biochemical activity and structural characterization, in a highly targeted time- and material-saving workflow for analysis of complex or costly mixtures. Coupling of HPTLC to the β-glucuronidase inhibition assay is demonstrated. Colorimetric and fluorometric detection of the inhibition was given. A new β-glucuronidase inhibiting flavonoid in P. boveana was elucidated. HPTLC-HRMS analysis of other β-glucuronidase inhibitors is shown for silymarin. Analysis of rare plants (low extract amount) is possible with the new planar assay.
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Affiliation(s)
- Ehab Mahran
- Institute of Nutritional Science, Chair of Food Science, Interdisciplinary Research Center IFZ, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marbacher Weg 6-10, 35032, Marburg, Germany
- Pharmacognosy Department, Faculty of Pharmacy, Al-Azhar University, 11371, Cairo, Egypt
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marbacher Weg 6-10, 35032, Marburg, Germany
| | - Gertrud E. Morlock
- Institute of Nutritional Science, Chair of Food Science, Interdisciplinary Research Center IFZ, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
- Corresponding author.
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Bensa M, Glavnik V, Vovk I. Leaves of Invasive Plants-Japanese, Bohemian and Giant Knotweed-The Promising New Source of Flavan-3-ols and Proanthocyanidins. PLANTS 2020; 9:plants9010118. [PMID: 31963589 PMCID: PMC7020164 DOI: 10.3390/plants9010118] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/08/2020] [Accepted: 01/11/2020] [Indexed: 12/16/2022]
Abstract
This is the first report on identification of all B-type proanthocyanidins from monomers to decamers (monomers—flavan-3-ols, dimers, trimers, tetramers, pentamers, hexamers, heptamers, octamers, nonamers, and decamers) and some of their gallates in leaves of Japanese knotweed (Fallopia japonica Houtt.), giant knotweed (Fallopia sachalinensis F. Schmidt) and Bohemian knotweed (Fallopia × bohemica (Chrtek & Chrtkova) J.P. Bailey). Flavan-3-ols and proanthocyanidins were investigated using high performance thin-layer chromatography (HPTLC) coupled to densitometry, image analysis, and mass spectrometry (HPTLC–MS/MS). All species contained (−)-epicatechin and procyanidin B2, while (+)-catechin was only detected in Bohemian and giant knotweed. (−)-Epicatechin gallate, procyanidin B1 and procyanidin C1 was only confirmed in giant knotweed. Leaves of all three knotweeds have the same chemical profiles of proanthocyanidins with respect to the degree of polymerization but differ with respect to gallates. Therefore, chromatographic fingerprint profiles of proanthocyanidins enabled differentiation among leaves of studied knotweeds, and between Japanese knotweed leaves and rhizomes. Leaves of all three species proved to be a rich source of proanthocyanidins (based on the total peak areas), with the highest content in giant and the lowest in Japanese knotweed. The contents of monomers in Japanese, Bohemian and giant knotweed were 0.84 kg/t of dry weight (DW), 1.39 kg/t DW, 2.36 kg/t, respectively, while the contents of dimers were 0.99 kg/t DW, 1.40 kg/t, 2.06 kg/t, respectively. Giant knotweed leaves showed the highest variety of gallates (dimer gallates, dimer digallates, trimer gallates, tetramer gallates, pentamer gallates, and hexamer gallates), while only monomer gallates and dimer gallates were confirmed in Japanese knotweed and monomer gallates, dimer gallates, and dimer digallates were detected in leaves of Bohemian knotweed. The profile of the Bohemian knotweed clearly showed the traits inherited from Japanese and giant knotweed from which it originated.
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Affiliation(s)
- Maja Bensa
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia;
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Vesna Glavnik
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia;
- Correspondence: (V.G.); (I.V.); Tel.: +386-1476-0265 (V.G); +386-1476-0341 (I.V.)
| | - Irena Vovk
- Department of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia;
- Correspondence: (V.G.); (I.V.); Tel.: +386-1476-0265 (V.G); +386-1476-0341 (I.V.)
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Japanese and Bohemian Knotweeds as Sustainable Sources of Carotenoids. PLANTS 2019; 8:plants8100384. [PMID: 31569417 PMCID: PMC6843863 DOI: 10.3390/plants8100384] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 02/07/2023]
Abstract
Japanese knotweed (Fallopia japonica Houtt.) and Bohemian knotweed (Fallopia x bohemica) are invasive alien plant species, causing great global ecological and economic damage. Mechanical excavation of plant material represents an effective containment method, but it is not economically and environmentally sustainable as it produces an excessive amount of waste. Thus, practical uses of these plants are actively being sought. In this study, we explored the carotenoid profiles and carotenoid content of mature (green) and senescing leaves of both knotweeds. Both plants showed similar pigment profiles. By means of high performance thin-layer chromatography with densitometry and high performance liquid chromatography coupled to photodiode array and mass spectrometric detector, 11 carotenoids (and their derivatives) and 4 chlorophylls were identified in green leaves, whereas 16 distinct carotenoids (free carotenoids and xanthophyll esters) were found in senescing leaves. Total carotenoid content in green leaves of Japanese knotweed and Bohemian knotweed (378 and 260 mg of lutein equivalent (LE)/100 g dry weight (DW), respectively) was comparable to that of spinach (384 mg LE/100 g DW), a well-known rich source of carotenoids. A much lower total carotenoid content was found for senescing leaves of Japanese and Bohemian knotweed (67 and 70 mg LE/100 g DW, respectively). Thus, green leaves of both studied knotweeds represent a rich and sustainable natural source of bioactive carotenoids. Exploitation of these invaders for the production of high value-added products should consequently promote their mechanical control.
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Zhang P, Zhang L, Shi J, Zhang N, Li Y, Wu T, Cheng Z. TLC-electrostatic field induced spray ionization-MS analysis of diverse structural skeletons and its coupling with TLC bioautography for characterization of lipase inhibitory components in American ginseng. J Pharm Biomed Anal 2019; 174:486-494. [DOI: 10.1016/j.jpba.2019.06.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/13/2019] [Accepted: 06/13/2019] [Indexed: 10/26/2022]
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Quantitative inkjet application on self-printed, binder-free HPTLC layers for submicromole-scaled analytical 1H NMR spectroscopy. Anal Chim Acta 2019; 1087:131-139. [PMID: 31585561 DOI: 10.1016/j.aca.2019.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 08/04/2019] [Accepted: 08/05/2019] [Indexed: 11/20/2022]
Abstract
High-performance thin-layer chromatography (HPTLC) combined with 1H nuclear magnetic resonance (NMR) spectroscopy has only been demonstrated over a small spectral range so far. The self-printing of chromatographic plates with a modified 3D slurry printer allowed the operator to influence the composition of the adsorbent slurry and thus the purity of the adsorbent layer. The combination of such self-printed, binder-free HPTLC plates with inkjet-driven sample application made possible submicromole-scaled analytical 1H NMR spectroscopy. This was proven using pure HPTLC adsorbents. For comparison, commercial silica gel HPTLC plates were purified by pre-development with solvents for spectroscopy, whereas commercial silica gel HPTLC particles were self-printed on the glass plate after purification under solvent pressure in a recycled HPLC cartridge. Evaluating the signals from different treatments, seven background signals disappeared in the proton spectra and three were reduced to a minimum by use of pre-developed commercial HPTLC plates. In the case of the self-printed, binder-free HPTLC plates made of purified adsorbent, most of the spectral background signals were reduced to a minimum, thus these spectra showed the highest cleanness and most pure analyte proton spectra. For the first time, the full 1H NMR spectroscopy range was made available after an HPTLC separation. This proof of principle opens the avenue for submicromole-scaled analytical 1H NMR spectroscopy.
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Glavnik V, Vovk I. High performance thin-layer chromatography–mass spectrometry methods on diol stationary phase for the analyses of flavan-3-ols and proanthocyanidins in invasive Japanese knotweed. J Chromatogr A 2019; 1598:196-208. [DOI: 10.1016/j.chroma.2019.03.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 03/21/2019] [Accepted: 03/22/2019] [Indexed: 10/27/2022]
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Fiod Riccio BV, Fonseca-Santos B, Colerato Ferrari P, Chorilli M. Characteristics, Biological Properties and Analytical Methods of Trans-Resveratrol: A Review. Crit Rev Anal Chem 2019; 50:339-358. [PMID: 31353930 DOI: 10.1080/10408347.2019.1637242] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Trans-resveratrol (TR) is the biological active isomer of resveratrol and the one responsible for therapeutic effects; both molecules are non-flavonoid phenolics of the stilbenes class found mainly in berries and red grapes. TR biological properties lie in modulation of various enzymatic classes. It is a promising candidate to novel drugs due its applications in pharmaceutical and cosmetic industries, such as anticarcinogenic, antidiabetic, antiacne, antioxidant, anti-inflammatory, neuroprotective, and photoprotector agent. It has effects on bone metabolism, gastrointestinal tract, eyes, kidneys, and in obesity treatment as well. Nevertheless, its low solubility in water and other polar solvents may be a hindrance to its therapeutic effects. Various strategies been developed to overcome these issues, such as the drug delivery systems. The present study performed a research about methods to identify TR and RESV in several samples (raw materials, wines, food supplements, drug delivery systems, and blood plasma). Most of the studies tend to analyze TR and RESV by high performance liquid chromatography (HPLC) coupled with different detectors, even so, there are reports of the use of capillary electrophoresis, electron spin resonance, gas chromatography, near-infrared luminescence, UV-Vis spectrophotometer, and vibrational spectrophotometry, for this purpose. Thus, the review evaluates the biological activity of TR and demonstrates the currently used analytical methods for its quantification in different matrices.
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Affiliation(s)
- Bruno Vincenzo Fiod Riccio
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Bruno Fonseca-Santos
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | | | - Marlus Chorilli
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
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Green HPTLC-densitometric approach for simultaneous determination and impurity- profiling of ebastine and phenylephrine hydrochloride. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.043] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Orsini F, Vovk I, Glavnik V, Jug U, Corradini D. HPTLC, HPTLC-MS/MS and HPTLC-DPPH methods for analyses of flavonoids and their antioxidant activity in Cyclanthera pedata leaves, fruits and dietary supplement. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1585630] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Francesca Orsini
- Department of Food Chemistry, National Institute of Chemistry, Ljubljana, Slovenia
- Campus Bio-Medico, University of Rome, Rome, Italy
- National Research Council, Institute of Biological Systems, Rome, Italy
| | - Irena Vovk
- Department of Food Chemistry, National Institute of Chemistry, Ljubljana, Slovenia
| | - Vesna Glavnik
- Department of Food Chemistry, National Institute of Chemistry, Ljubljana, Slovenia
| | - Urška Jug
- Department of Food Chemistry, National Institute of Chemistry, Ljubljana, Slovenia
| | - Danilo Corradini
- National Research Council, Institute of Biological Systems, Rome, Italy
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Nawrot-Hadzik I, Ślusarczyk S, Granica S, Hadzik J, Matkowski A. Phytochemical Diversity in Rhizomes of Three Reynoutria Species and their Antioxidant Activity Correlations Elucidated by LC-ESI-MS/MS Analysis. Molecules 2019; 24:E1136. [PMID: 30901974 PMCID: PMC6470775 DOI: 10.3390/molecules24061136] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 11/16/2022] Open
Abstract
The rhizome of Reynoutria japonica is a well-known traditional herb (Hu zhang) used in East Asia to treat various inflammatory diseases, infections, skin diseases, scald, and hyperlipidemia. It is also one of the richest natural sources of resveratrol. Although, it has been recently included in the European Pharmacopoeia, in Europe it is still an untapped resource. Some of the therapeutic effects are likely to be influenced by its antioxidant properties and this in turn is frequently associated with a high stilbene content. However, compounds other than stilbenes may add to the total antioxidant capacity. Hence, the aim of this research was to examine rhizomes of R. japonica and the less studied but morphologically similar species, R. sachalinensis and R. x bohemica for their phytochemical composition and antioxidant activity and to clarify the relationship between the antioxidant activity and the components by statistical methods. HPLC/UV/ESI-MS studies of three Reynoutria species revealed 171 compounds, comprising stilbenes, carbohydrates, procyanidins, flavan-3-ols, anthraquinones, phenylpropanoids, lignin oligomers, hydroxycinnamic acids, naphthalenes and their derivatives. Our studies confirmed the presence of procyanidins with high degree of polymerization, up to decamers, in the rhizomes of R. japonica and provides new data on the presence of these compounds in other Reynoutria species. A procyanidin trimer digallate was described for the first time in, the studied plants. Moreover, we tentatively identified dianthrone glycosides new for these species and previously unrecorded phenylpropanoid disaccharide esters and hydroxycinnamic acid derivatives. Furthermore, compounds tentatively annotated as lignin oligomers were observed for the first time in the studied species. The rhizomes of all Reynoutria species exhibited strong antioxidant activity. Statistical analysis demonstrated that proanthocyanidins should be considered as important contributors to the total antioxidant capacity.
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Affiliation(s)
- Izabela Nawrot-Hadzik
- Department of Pharmaceutical Biology and Botany, Wroclaw Medical University, 50-367 Wrocław, Poland.
| | - Sylwester Ślusarczyk
- Department of Pharmaceutical Biology and Botany, Wroclaw Medical University, 50-367 Wrocław, Poland.
| | - Sebastian Granica
- Department of Pharmacognosy and Molecular Foundations of Phytotherapy, Warsaw Medical University, 02-097 Warszawa, Poland.
| | - Jakub Hadzik
- Department of Dental Surgery, Wroclaw Medical University, 50-425 Wrocław, Poland.
| | - Adam Matkowski
- Department of Pharmaceutical Biology and Botany, Wroclaw Medical University, 50-367 Wrocław, Poland.
- Botanical Garden of Medicinal Plants, Wroclaw Medical University, 50-367 Wrocław, Poland.
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Fougère L, Da Silva D, Destandau E, Elfakir C. TLC-MALDI-TOF-MS-based identification of flavonoid compounds using an inorganic matrix. PHYTOCHEMICAL ANALYSIS : PCA 2019; 30:218-225. [PMID: 30474345 DOI: 10.1002/pca.2807] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 10/15/2018] [Accepted: 10/23/2018] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Thin layer chromatography (TLC) is frequently used to obtain the fingerprint of a plant extract. Although the retardation factor and the response to visualisation give primary information about compound identification, the direct TLC-mass spectrometry (MS) coupling allows a more detailed characterisation of samples. OBJECTIVES To demonstrate the potential for the flavonoid dereplication using an inorganic matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF-MS) method with and without TLC separation. MATERIAL AND METHODS Samples derived from wine, apple or rose were deposited on an aluminium-backed silica gel TLC sheet compatible with the MS adapter. Unlike the wine sample, for apple and rose samples compound derivatisation was necessary. These two samples were deposited twice and the plate was cut in two parts. One half was oversprayed with Neu-Peg reagent to visualise flavonoids while the inorganic matrix was deposited on each flavonoid zone on the second half for MS ionisation. RESULTS Mass spectra obtained for samples without plate development showed numerous ions corresponding to glycosylated flavonoids. The lower m/z observed could be due either to aglycone flavonoids or to in-source fragment ions. After plate development, a separation of many spots was observed and each spot was analysed separately leading to a deeper identification of the present flavonoids. Moreover, isobaric flavonoids with different hRf values could be differentiated. CONCLUSION TLC-MALDI-TOF-MS using an inorganic matrix enabled the analysis of anthocyanins in positive mode and of flavonols, flavanols, dihydrochalcones and phenolic acids in negative mode, reducing adduct, aggregate forms giving thus simple and reliable spectra for the dereplication approach of flavonoids in complex samples.
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Affiliation(s)
- Laëtitia Fougère
- University of Orléans, CNRS, ICOA, UMR 7311, F-45067, Orléans, France
| | - David Da Silva
- University of Orléans, CNRS, ICOA, UMR 7311, F-45067, Orléans, France
| | - Emilie Destandau
- University of Orléans, CNRS, ICOA, UMR 7311, F-45067, Orléans, France
| | - Claire Elfakir
- University of Orléans, CNRS, ICOA, UMR 7311, F-45067, Orléans, France
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Lachowicz S, Oszmiański J, Wojdyło A, Cebulak T, Hirnle L, Siewiński M. UPLC-PDA-Q/TOF-MS identification of bioactive compounds and on-line UPLC-ABTS assay in Fallopia japonica Houtt and Fallopia sachalinensis (F.Schmidt) leaves and rhizomes grown in Poland. Eur Food Res Technol 2018. [DOI: 10.1007/s00217-018-3191-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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HPTLC fingerprint profile analysis of cocoa proanthocyanidins depending on origin and genotype. Food Chem 2018; 267:277-287. [DOI: 10.1016/j.foodchem.2017.08.109] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Revised: 05/19/2017] [Accepted: 08/30/2017] [Indexed: 11/20/2022]
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eicCluster software, an open-source in silico tool, and on-surface syntheses, an in situ concept, both exploited for signal highlighting in high-resolution mass spectrometry to ease structure elucidation in planar chromatography. J Chromatogr A 2018; 1577:101-108. [DOI: 10.1016/j.chroma.2018.09.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/19/2018] [Accepted: 09/24/2018] [Indexed: 11/20/2022]
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Jug U, Glavnik V, Kranjc E, Vovk I. HPTLC–densitometric and HPTLC–MS methods for analysis of flavonoids. J LIQ CHROMATOGR R T 2018. [DOI: 10.1080/10826076.2018.1448690] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Urška Jug
- Department of Food Chemistry, National Institute of Chemistry, Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
| | - Vesna Glavnik
- Department of Food Chemistry, National Institute of Chemistry, Ljubljana, Slovenia
| | - Eva Kranjc
- Department of Food Chemistry, National Institute of Chemistry, Ljubljana, Slovenia
| | - Irena Vovk
- Department of Food Chemistry, National Institute of Chemistry, Ljubljana, Slovenia
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Kranjc E, Albreht A, Vovk I, Glavnik V. High performance thin-layer chromatography–mass spectrometry enables reliable analysis of physalins in different plant parts of Physalis alkekengi L. J Chromatogr A 2017; 1526:137-150. [DOI: 10.1016/j.chroma.2017.09.070] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/27/2017] [Accepted: 09/28/2017] [Indexed: 01/08/2023]
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