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Vilkickyte G, Petrikaite V, Pukalskas A, Sipailiene A, Raudone L. Exploring Vaccinium vitis-idaea L. as a potential source of therapeutic agents: antimicrobial, antioxidant, and anti-inflammatory activities of extracts and fractions. J Ethnopharmacol 2022; 292:115207. [PMID: 35306039 DOI: 10.1016/j.jep.2022.115207] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/14/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Vaccinium vitis-idaea L. (lingonberry) leaves and fruits have traditionally been used in Asian and European countries as a natural solution for urinary tract infections, gastrointestinal distress, neurodegenerative diseases, and related inflammatory disorders, which are overall associated with free radical damage and presence of triggering pathogenic strains in the human body. Considering growing attention to natural products, there are not enough scientific data to confirm predominant specialized metabolites, responsible for the traditional therapeutic use of lingonberries. AIM OF THE STUDY The present study aimed at an in-depth study of specialized metabolite profiling and biological activity evaluation of lingonberry crude extracts and isolated fractions. MATERIALS AND METHODS Crude dry extracts and fractions from lingonberry leaves and fruits were analyzed by the UPLC-MS method. Potential inhibiting properties against different bacterial strains and hyaluronidase, ability to scavenge hydrogen peroxide, and effect on its production in a macrophage culture J774 were examined. RESULTS Findings suggested the tentative presence of 59 compounds, mainly phenolics, displayed higher bioactivities of particular fractions than that of crude extracts and elucidated particular compounds as candidates in pharmaceuticals. Trimeric and dimeric proanthocyanidins from lingonberry leaves and fruits were shown to have the strongest antimicrobial, antioxidant, and anti-inflammatory potential. CONCLUSIONS This study revealed specialized metabolites responsible for the traditional medicinal properties of lingonberries and pointed out demand for further purification and new research directions of proanthocyanidins in the frame of their multipharmacological perspectives.
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Affiliation(s)
- Gabriele Vilkickyte
- Laboratory of Biopharmaceutical Research, Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu av. 13, LT-50162, Kaunas, Lithuania.
| | - Vilma Petrikaite
- Laboratory of Drug Targets Histopathology, Institute of Cardiology, Lithuanian University of Health Sciences, Sukileliu av. 13, LT-50162, Kaunas, Lithuania.
| | - Audrius Pukalskas
- Department of Food Science and Technology, Kaunas University of Technology, Radvilenu rd. 19, LT-50254, Kaunas, Lithuania.
| | - Ausra Sipailiene
- Department of Food Science and Technology, Kaunas University of Technology, Radvilenu rd. 19, LT-50254, Kaunas, Lithuania.
| | - Lina Raudone
- Laboratory of Biopharmaceutical Research, Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu av. 13, LT-50162, Kaunas, Lithuania; Department of Pharmacognosy, Lithuanian University of Health Sciences, Sukileliu av. 13, LT-50162, Kaunas, Lithuania.
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Nagybákay NE, Syrpas M, Vilimaitė V, Tamkutė L, Pukalskas A, Venskutonis PR, Kitrytė V. Optimized Supercritical CO 2 Extraction Enhances the Recovery of Valuable Lipophilic Antioxidants and Other Constituents from Dual-Purpose Hop ( Humulus lupulus L.) Variety Ella. Antioxidants (Basel) 2021; 10:antiox10060918. [PMID: 34204047 PMCID: PMC8228826 DOI: 10.3390/antiox10060918] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/27/2021] [Accepted: 06/01/2021] [Indexed: 11/21/2022] Open
Abstract
The article presents the optimization of supercritical CO2 extraction (SFE-CO2) parameters using response surface methodology (RSM) with central composite design (CCD) in order to produce single variety hop (cv. Ella) extracts with high yield and strong in vitro antioxidant properties. Optimized SFE-CO2 (37 MPa, 43 °C, 80 min) yielded 26.3 g/100 g pellets of lipophilic fraction. This extract was rich in biologically active α- and β-bitter acids (522.8 and 345.0 mg/g extract, respectively), and exerted 1481 mg TE/g extract in vitro oxygen radical absorbance capacity (ORAC). Up to ~3-fold higher extraction yield, antioxidant recovery (389.8 mg TE/g pellets) and exhaustive bitter acid extraction (228.4 mg/g pellets) were achieved under the significantly shorter time compared to the commercially used one-stage SFE-CO2 at 10–15 MPa and 40 °C. Total carotenoid and chlorophyll content was negligible, amounting to <0.04% of the total extract mass. Fruity, herbal, spicy and woody odor of extracts could be attributed to the major identified volatiles, namely β-pinene, β-myrcene, β-humulene, α-humulene, α-selinene and methyl-4-decenoate. Rich in valuable bioactive constituents and flavor compounds, cv. Ella hop SFE-CO2 extracts could find multipurpose applications in food, pharmaceutical, nutraceutical and cosmetics industries.
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Tamkutė L, Pukalskas A, Syrpas M, Urbonavičienė D, Viškelis P, Venskutonis PR. Fractionation of cranberry pomace lipids by supercritical carbon dioxide extraction and on-line separation of extracts at low temperatures. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Grauzdytė D, Pukalskas A, El Kalamouni C, Venskutonis PR. Mangiferin Rich Products from Aphloia theiformis (Vahl) Benn Leaves: Extraction, Fractionation, Phytochemical Characterization, and Antioxidant Properties. Molecules 2020; 25:molecules25092081. [PMID: 32365681 PMCID: PMC7248941 DOI: 10.3390/molecules25092081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/22/2020] [Accepted: 04/28/2020] [Indexed: 12/17/2022] Open
Abstract
Aphloia theiformis is traditionally used in Mauritius, Madagascar, and Reunion Island for treating several diseases. In this study, various extraction solvents and schemes were applied for the recovery of antioxidant rich fractions from the leaves of A. theiformis. The products were evaluated for their antioxidant capacity using well known in vitro assays. Major compounds were characterized by UPLC–QTOF–MS. Hydrophilic extracts of A. theiformis demonstrated strong antioxidant properties, which are comparable with the synthetic antioxidant Trolox. UPLC analysis confirmed mangiferin as the main secondary metabolite of A. theiformis. Tormentic and hydroxytormentic acids as well as their isomers were also abundant in A. theiformis extracts and fractions, while their amounts were determined for the first time. The most potential extract was further separated into the fractions by liquid-liquid extraction and by precipitation at low temperature. Antioxidant capacity and composition of secondary metabolites of derived fractions were determined. Some of the fractions possessed remarkable antioxidant capacity, comparable to pure mangiferin. The results obtained reveal high potential of A. theiformis for recovery of natural antioxidants and other bioactive phytochemicals, particularly mangiferin.
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Affiliation(s)
- Dovilė Grauzdytė
- Department of Food Science and Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania; (D.G.); (A.P.)
| | - Audrius Pukalskas
- Department of Food Science and Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania; (D.G.); (A.P.)
| | - Chaker El Kalamouni
- UM 134 Processus Infectieux en Milieu Insulaire Tropical (PIMIT), INSERM U1187, CNRS UMR9192, IRD UMR249, Plateforme Technologique CYROI, Université de la Réunion, 97490 Sainte Clotilde, France;
| | - Petras Rimantas Venskutonis
- Department of Food Science and Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania; (D.G.); (A.P.)
- Correspondence: ; Tel.: +370-37-456647
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Kitrytė V, Laurinavičienė A, Syrpas M, Pukalskas A, Venskutonis PR. Modeling and optimization of supercritical carbon dioxide extraction for isolation of valuable lipophilic constituents from elderberry (Sambucus nigra L.) pomace. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2019.09.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Račkauskienė I, Pukalskas A, Fiore A, Troise AD, Venskutonis PR. Phytochemical-Rich Antioxidant Extracts of Vaccinium Vitis-idaea L. Leaves Inhibit the Formation of Toxic Maillard Reaction Products in Food Models. J Food Sci 2019; 84:3494-3503. [PMID: 31737914 DOI: 10.1111/1750-3841.14805] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 08/06/2019] [Accepted: 08/06/2019] [Indexed: 01/02/2023]
Abstract
Thermal treatment of proteinaceous foods generates heat-induced Maillard reaction substances including toxic advanced glycation end products (AGEs) and heterocyclic amines (HAs). It is known that plant phenolic compounds may influence Maillard reaction. This study investigated the impact of lingonberry leaf extracts on the formation of Nε -(carboxymethyl)lysine (CML) and Nε -(2-furoylmethyl)-L-lysine (furosine) in milk model system and HAs in meat-protein and meat model systems. In addition, lingonberry leaf extracts obtained by different solvents were characterized by radical scavenging, Folin-Ciocalteu assays and ultrahigh pressure liquid chromatography quadruple-time-of flight mass spectrometry (UPLC-qTOF-MS). Water extract (WE) stronger suppressed CML than furosine formation in milk model system: CML levels were reduced by nearly 40%. Moreover, quinic acid and catechin, which were abundant in WE, were effective in inhibiting CML and furosine formation. WE and acetone extract (AE) at 10 mg/mL significantly inhibited HAs formation in both model systems. However, higher suppressing effect on HAs formation showed AE, which had lower antioxidant capacity and total phenolic content values than WE. WE contained higher amounts of hydroxycinnamic acids, proanthocyanidins and flavonols, while AE was richer in flavan-3-ols and arbutin derivatives. It indicates that the composition of phenolics might be a major factor for explaining different effect of extracts from the same plant on HAs formation. In general, the results suggest that lingonberry leaves is a promising source of phytochemicals for inhibiting toxic Maillard reaction products and enriching foods with plant bioactive compounds. PRACTICAL APPLICATION: The increased consumption in processed foods has been linked with the increased risks of various diseases, while thermal food processing is required to develop flavor, insure safety, and extend shelf life. Therefore, developing effective technological means for inhibiting the formation of heat-induced toxic substances is an important task. This study showed a potential of lingonberry leaf extracts containing health beneficial phytochemicals to suppress the formation of toxic Maillard reaction products during heating of milk and meat.
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Affiliation(s)
- Ieva Račkauskienė
- Dept. of Food Science and Technology, Kaunas Univ. of Technology, Radvilėnų pl. 19, LT-50254, Kaunas, Lithuania
| | - Audrius Pukalskas
- Dept. of Food Science and Technology, Kaunas Univ. of Technology, Radvilėnų pl. 19, LT-50254, Kaunas, Lithuania
| | - Alberto Fiore
- Div. of Food and Drink, Engineering and Technology, Abertay University, Dundee, DD1 1HG, UK
| | - Antonio Dario Troise
- Dept. of Agriculture, Univ. of Naples "Federico II,", Parco Gussone Ed. 84, 80055, Portici, Naples, Italy
| | - Petras Rimantas Venskutonis
- Dept. of Food Science and Technology, Kaunas Univ. of Technology, Radvilėnų pl. 19, LT-50254, Kaunas, Lithuania
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Dienaitė L, Pukalskienė M, Pukalskas A, Pereira CV, Matias AA, Venskutonis PR. Isolation of Strong Antioxidants from Paeonia Officinalis Roots and Leaves and Evaluation of Their Bioactivities. Antioxidants (Basel) 2019; 8:antiox8080249. [PMID: 31357649 PMCID: PMC6721766 DOI: 10.3390/antiox8080249] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/17/2019] [Accepted: 07/25/2019] [Indexed: 01/10/2023] Open
Abstract
Paeonia officinalis extracts from leaves and roots were tested for their antioxidant potential using in vitro chemical (Folin-Ciocalteu, 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), oxygen radical absorbance capacity (ORAC), hydroxyl radical antioxidant capacity (HORAC), hydroxyl radical scavenging capacity HOSC)) and cellular antioxidant activity (CAA) assays. Leaf extracts were stronger antioxidants than root extracts, while methanol was a more effective solvent than water in chemical assays. However, the selected water extract of leaves was a stronger antioxidant in CAA than the methanol extract (0.106 vs. 0.046 µmol quercetin equivalents/mg). Twenty compounds were identified by ultra performance liquid chromatography-quadrupole-time-of-flight (UPLC-Q-TOF) mass spectrometer, while on-line screening of their antioxidant capacity by high performance liquid chromatography (HPLC) with a DPPH•-scavenging detector revealed that gallic acid derivatives are the major peony antioxidants. Root water and leaf methanol extracts inhibited α-amylase in a dose dependent manner. The IC50 value for the strongest inhibitor, the methanol extract of leaves, was 1.67 mg/mL. In addition, the cytotoxicity assessment of extracts using human Caco-2 cells demonstrated that none of them possessed cytotoxic effects.
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Affiliation(s)
- Lijana Dienaitė
- Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų˛ pl. 19, LT-50254 Kaunas, Lithuania
| | - Milda Pukalskienė
- Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų˛ pl. 19, LT-50254 Kaunas, Lithuania
| | - Audrius Pukalskas
- Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų˛ pl. 19, LT-50254 Kaunas, Lithuania
| | - Carolina V Pereira
- IBET-Instituto de Biologia Experimental e Tecnológica, Food & Health Division Apartado 12, 2780-901 Oeiras, Portugal
| | - Ana A Matias
- IBET-Instituto de Biologia Experimental e Tecnológica, Food & Health Division Apartado 12, 2780-901 Oeiras, Portugal
| | - Petras Rimantas Venskutonis
- Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų˛ pl. 19, LT-50254 Kaunas, Lithuania.
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Grauzdytė D, Pukalskas A, El Kalamouni C, Venskutonis PR. Antioxidant potential and phytochemical composition of extracts obtained from Phyllanthus phillyreifolius by different extraction methods. Nat Prod Res 2018; 34:706-709. [PMID: 30445845 DOI: 10.1080/14786419.2018.1493586] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Phyllanthus phillyreifolius (Euphorbiaceae), poorly studied plant species, was fractionated using conventional and high pressure extraction techniques such as supercritical fluid and pressurized liquid extractions. Lipophilic substances were extracted with n-hexane and supercritical CO2 with or without co-solvent ethanol, meanwhile higher polarity fractions were recovered with acetone and 70% ethanol. Antioxidant potential was assessed by various chemical assays, which revealed that 70% ethanol was the most effective solvent for recovery of antioxidants. UPLC-MS phytochemical analysis of hydrophilic extracts confirmed geraniin as the main constituent of P. phillyreifolius. Other quantitatively important compounds were phyllanthusiin D and elaeocarpusin. Three isomers of tocopherol (α, β and γ) were quantified by HPLC in lipofhilic extracts. Generally, the results from this study revealed high antioxidant potential of P. phillyreifolius; consequently the plant may be considered as a promising source of antioxidants for functional foods, nutraceuticals and pharmaceutical formulations.
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Affiliation(s)
- Dovilė Grauzdytė
- Department of Food Science and Technology, Kaunas University of Technology, Kaunas, Lithuania
| | - Audrius Pukalskas
- Department of Food Science and Technology, Kaunas University of Technology, Kaunas, Lithuania
| | - Chaker El Kalamouni
- UM 134 Processus Infectieux en Milieu Insulaire Tropical (PIMIT), INSERM U1187, CNRS UMR9192, IRD UMR249, Plateforme Technologique CYROI, Université de la Réunion, Sainte-Clotilde, France
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Grauzdytė D, Pukalskas A, Viranaicken W, El Kalamouni C, Venskutonis PR. Protective effects of Phyllanthus phillyreifolius extracts against hydrogen peroxide induced oxidative stress in HEK293 cells. PLoS One 2018; 13:e0207672. [PMID: 30444889 PMCID: PMC6239330 DOI: 10.1371/journal.pone.0207672] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/05/2018] [Indexed: 01/04/2023] Open
Abstract
Phyllanthus phillyreifolius, a plant species indigenous to Reunion Island, is used in folk medicine for treating diarrhea and as a diuretic. In the present study acetone and hydroethanol extracts of P. phillyreifolius were evaluated for their cytotoxicity and antioxidant effects using in vitro (TPC, ABTS, DPPH, FRAP, ORAC) and in cellulo (MTT, DCFH-DA, RT-qPCR) assays. Major compounds were evaluated using UPLC-QTOF-MS. MTT cell viability assay showed low cytotoxicity of extracts towards human embryonic kidney 293 (HEK293) cell line. Both extracts were rich in polyphenols (mainly ellagitannins) and showed high antioxidant potential and intracellular ROS decreasing effect. Preconditioning of HEK293 cells with extracts influenced gene expression of antioxidant enzymes, however ROS level decreasing effect was more related to their capacity to scavenge free radicals and with their reducing power. Strong antioxidant activity of extracts as well as the presence of geraniin supports the use of P. phillyreifolius in traditional medicine.
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Affiliation(s)
- Dovilė Grauzdytė
- Department of Food Science and Technology, Kaunas University of Technology, Kaunas, Lithuania
| | - Audrius Pukalskas
- Department of Food Science and Technology, Kaunas University of Technology, Kaunas, Lithuania
| | - Wildriss Viranaicken
- Université de la Réunion, UM 134 Processus Infectieux en Milieu Insulaire Tropical (PIMIT), INSERM U1187, CNRS UMR9192, IRD UMR249, Plateforme Technologique CYROI, Sainte Clotilde, France
| | - Chaker El Kalamouni
- Université de la Réunion, UM 134 Processus Infectieux en Milieu Insulaire Tropical (PIMIT), INSERM U1187, CNRS UMR9192, IRD UMR249, Plateforme Technologique CYROI, Sainte Clotilde, France
- * E-mail: (PRV); (CEK)
| | - Petras Rimantas Venskutonis
- Department of Food Science and Technology, Kaunas University of Technology, Kaunas, Lithuania
- * E-mail: (PRV); (CEK)
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Abstract
This in vitro study aimed to detect leaching components from an epoxy resin- and a methacrylate-based endodontic sealer and correlate them to cytotoxicity induced by material extracts for up to 36 weeks. We qualitatively determined the substances released by aged AH Plus and RealSeal SE specimens at seven intervals between 0 and 36 weeks. Quantification was performed by ultra-performance liquid chromatography/mass spectrometry (UPLC/MS). We determined the viability of murine macrophage J774 cells after 24 h exposure to material extracts, at each interval, using a fluorescence staining/microscopy method. The leachables detected were 1-adamantylamine and bisphenol A diglycidyl ether from AH Plus and N-(p-tolyl) diethanolamine and caprolactone-2-(methacryloyloxy) ethyl ester from RealSeal SE. The largest UPLC/MS chromatogram peak areas of the leachables were detected within 72 h. Induction of cytotoxicity after exposure to AH Plus and RealSeal SE extracts coincided with leachant detected within the first 72 and 24 h, respectively. The clinical impact of the cytotoxicity due to resin-based endodontic sealers is unknown.
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Affiliation(s)
- Indre Graunaite
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
| | - Greta Lodiene
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
| | - Odeta Arandarcikaite
- Institute of Neurosciences, Laboratory of Biochemistry, Lithuanian University of Health Sciences
| | - Audrius Pukalskas
- Department of Food Science and Technology, Kaunas University of Technologies
| | - Vita Machiulskiene
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
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Dienaitė L, Pukalskienė M, Matias AA, Pereira CV, Pukalskas A, Venskutonis PR. Valorization of six Nepeta species by assessing the antioxidant potential, phytochemical composition and bioactivity of their extracts in cell cultures. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.04.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Kraujalienė V, Pukalskas A, Venskutonis P. Biorefining of goldenrod (Solidago virgaurea L.) leaves by supercritical fluid and pressurized liquid extraction and evaluation of antioxidant properties and main phytochemicals in the fractions and plant material. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.07.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Kitrytė V, Kraujalienė V, Šulniūtė V, Pukalskas A, Venskutonis PR. Chokeberry pomace valorization into food ingredients by enzyme-assisted extraction: Process optimization and product characterization. Food and Bioproducts Processing 2017. [DOI: 10.1016/j.fbp.2017.06.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Žvikas V, Pukelevičienė V, Ivanauskas L, Pukalskas A, Ražukas A, Jakštas V. Variety-based research on the phenolic content in the aerial parts of organically and conventionally grown buckwheat. Food Chem 2016; 213:660-667. [PMID: 27451232 DOI: 10.1016/j.foodchem.2016.07.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 02/14/2016] [Accepted: 07/04/2016] [Indexed: 10/21/2022]
Abstract
The aim of this study was to evaluate the impact of different farming types-organic and conventional-on phenolic content in buckwheat varieties grown in Lithuania. Rutin was identified as the dominant phenolic compound in contrast to both phenolic acids (chlorogenic and neochlorogenic acids) and other flavonoids (quercetin and quercitrin). It was determined that variety had the highest impact (p<0.05) on the phenolic content of various aerial parts of buckwheat. In most cases, farming practice significantly (p<0.05) affected the accumulation of phenolics in buckwheat. Organically grown plants usually contained higher amounts of phenolics than those grown under conventional farming conditions. According to a cluster analysis, varieties Panda, Zaleika, and VB Nojai were found to accumulate the highest amounts of phenolics.
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Affiliation(s)
- V Žvikas
- Department of Pharmacognosy, Lithuanian University of Health Sciences, Eivenių 4, LT-50161 Kaunas, Lithuania
| | - V Pukelevičienė
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Eivenių 4, LT-50161 Kaunas, Lithuania.
| | - L Ivanauskas
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Eivenių 4, LT-50161 Kaunas, Lithuania
| | - A Pukalskas
- Department of Food Technology, Kaunas University of Technology, Radvilenų pl. 19, LT-50254 Kaunas, Lithuania
| | - A Ražukas
- Voke Branch of Lithuanian Research Centre for Agriculture and Forestry, Žalioji a. 2, Trakų Vokė, LT-02232 Vilnius, Lithuania
| | - V Jakštas
- Department of Pharmacognosy, Lithuanian University of Health Sciences, Eivenių 4, LT-50161 Kaunas, Lithuania; Laboratory of Phytopharmacy, Lithuanian University of Health Sciences, Eivenių 4, LT-50161 Kaunas, Lithuania
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Raudone L, Raudonis R, Liaudanskas M, Viskelis J, Pukalskas A, Janulis V. Phenolic Profiles and Contribution of Individual Compounds to Antioxidant Activity of Apple Powders. J Food Sci 2016; 81:C1055-61. [PMID: 27002313 DOI: 10.1111/1750-3841.13277] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 01/30/2016] [Accepted: 02/18/2016] [Indexed: 11/29/2022]
Abstract
Apples (Malus domestica L.) are the most common source of phenolic compounds in northern European diet. Besides pectins, dietary fibers, vitamins, and oligosaccharides they contain phenolic compounds of different classes. Apple powders are convenient functional forms retaining significant amounts of phenolic antioxidants. In this study reducing and radical scavenging profiles of freeze-dried powders of "Aldas,ˮ "Auksis,ˮ "Connel Red,ˮ "Ligol,ˮ "Lodel,ˮ and "Rajkaˮ were determined and phenolic constituents were identified using ultra high-performance liquid chromatography coupled to quadrupole and time-of-flight mass spectrometers. A negative ionization mode was applied and seventeen compounds: phenolic acids (coumaroylquinic, chlorogenic), flavonoids (quercetin derivatives), and procyanidin derivatives (B1, B2, and C1) were identified in all tested apple samples. Total values of Trolox equivalents varied from 7.72 ± 0.32 up to 20.02 ± 0.52 and from 11.10 ± 0.57 up to 21.42 ± 0.75 μmol/g of dry weight of apple powder in FRAP (ferric reducing antioxidant power) and ABTS (2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) postcolumn assays, respectively. The greatest Trolox equivalent values were determined for apples of "Aldasˮ cultivar. Chlorogenic acid and procyanidin C1 were the most significant contributors to total reducing and radical scavenging activity in all apple cultivars tested, therefore they could be considered as markers of antioxidant activity.
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Affiliation(s)
- Lina Raudone
- Dept. of Pharmacognosy, Lithuanian Univ. of Health Sciences, Eivenių str. 4, LT-50161, Kaunas, Lithuania
| | - Raimondas Raudonis
- Dept. of Pharmacognosy, Lithuanian Univ. of Health Sciences, Eivenių str. 4, LT-50161, Kaunas, Lithuania
| | - Mindaugas Liaudanskas
- Dept. of Pharmacognosy, Lithuanian Univ. of Health Sciences, Eivenių str. 4, LT-50161, Kaunas, Lithuania
| | - Jonas Viskelis
- Inst. of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kauno str. 30, LT-54333, Babtai, Kaunas distr., Lithuania
| | - Audrius Pukalskas
- Dept. of Food Technology, Kaunas Univ. of Technology, Radvilėnų pl. 19, LT-50254, Kaunas, Lithuania
| | - Valdimaras Janulis
- Dept. of Pharmacognosy, Lithuanian Univ. of Health Sciences, Eivenių str. 4, LT-50161, Kaunas, Lithuania
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Kraujalytė V, Venskutonis PR, Pukalskas A, Česonienė L, Daubaras R. Antioxidant properties, phenolic composition and potentiometric sensor array evaluation of commercial and new blueberry (Vaccinium corymbosum) and bog blueberry (Vaccinium uliginosum) genotypes. Food Chem 2015; 188:583-90. [DOI: 10.1016/j.foodchem.2015.05.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 05/04/2015] [Accepted: 05/07/2015] [Indexed: 10/23/2022]
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Raudonė L, Raudonis R, Gaivelytė K, Pukalskas A, Viškelis P, Venskutonis PR, Janulis V. Phytochemical and antioxidant profiles of leaves from different Sorbus L. species. Nat Prod Res 2014; 29:281-5. [PMID: 25142632 DOI: 10.1080/14786419.2014.950577] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Leaves of Sorbus L. have been used in various traditional medicine systems. Phenolic compounds determine the main pharmacological effects of Sorbus L. In this study, phytochemical and antioxidant profiles of Sorbus anglica, Sorbus aria, Sorbus arranensis, Sorbus aucuparia, Sorbus austriaca, Sorbus caucasica, Sorbus commixta, Sorbus discolor, Sorbus gracilis, Sorbus hostii, Sorbus semi-incisa and Sorbus tianschanica were determined. Twenty four constituents were identified in Sorbus L. species using ultra high performance liquid chromatography coupled to quadruple and time-of-flight mass spectrometers. Post-column FRAP assay identified compounds with reducing activity and revealed significantly greatest total antioxidant activity of 175.30 μmol TE/g DW, 169.20 μmol TE/g DW and 148.11 μmol TE/g DW in S. commixta, S. discolor and S. gracilis leaf samples, respectively, with neochlorogenic and chlorogenic acids being most significant contributors. Characteristic fingerprints of phytochemical and antioxidant profiles could be applied for the quality evaluation of various raw materials of Sorbus L. species.
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Affiliation(s)
- Lina Raudonė
- a Department of Pharmacognosy , Lithuanian University of Health Sciences , Eivenių Str. 4, LT-50161 Kaunas , Lithuania
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Nemeikaite-Ceniene A, Maroziene A, Pukalskas A, Venskutonis PR, Cenas N. Redox Properties of Novel Antioxidant 5,8-Dihydroxycoumarin: Implications for its Prooxidant Cytotoxicity. ACTA ACUST UNITED AC 2014; 60:849-54. [PMID: 16402544 DOI: 10.1515/znc-2005-11-1206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The aim of this work was to characterize the redox properties of the new antioxidant 5,8- dihydroxycoumarin (5,8-DHC), isolated from sweet grass (Hierochloë odorata L.), and to determine its impact on its cytotoxic action. Reversible electrochemical oxidation of 5,8- DHC at pH 7.0 was characterized by the midpoint potential (Ep/2) of 0.23 V vs. the normal hydrogen electrode. 5,8-DHC was slowly autoxidized at pH 7.0, and it was active as a substrate for peroxidase (POD, EC 1.11.1.7) and tyrosinase (TYR, EC 1.14.18.1). Oxidation of 5,8-DHC by POD/H2O2 yielded the product(s) which reacted with reduced glutathione and supported the oxidation of NADPH by ferredoxin:NADP+ reductase (FNR, EC 1.18.1.2) and NAD(P)H:quinone oxidoreductase (NQO1, DT-diaphorase, EC 1.6.99.2). The concentration of 5,8-DHC for 50% survival of bovine leukemia virus-transformed lamb kidney fibroblasts (line FLK) during a 24-h incubation was (60 ± 5.5) μm. Cytotoxicity of 5,8-DHC was decreased by desferrioxamine, catalase, the antioxidant N,N’-diphenyl-p-phenylene diamine, and potentiated by 1,3-bis-(2-chloroethyl)-1-nitrosourea and dicumarol, an inhibitor of NQO1. This shows that 5,8-DHC possesses the oxidative stress-type cytotoxicity, evidently due to the action of quinodal oxidation product(s). The protective effect of isoniazide, an inhibitor of cytochrome P-450 2E1, points to hydroxylation of 5,8-DHC as additional toxification route, whereas the potentiating effect of 3,5-dinitrocatechol, an inhibitor of catechol-omethyltransferase (COMT, EC 2.1.1.6), points to the o-methylation of hydroxylation products as the detoxification route.
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Kraujalis P, Venskutonis PR, Kraujalienė V, Pukalskas A. Antioxidant properties and preliminary evaluation of phytochemical composition of different anatomical parts of amaranth. Plant Foods Hum Nutr 2013; 68:322-328. [PMID: 23912804 DOI: 10.1007/s11130-013-0375-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Antioxidant properties of amaranth extracts isolated sequentially by acetone and methanol/water from defatted plant leaves, flowers, stems and seeds were assessed by ABTS(+•), DPPH(•), ORAC and total phenols content (TPC) assays. In addition, antioxidant properties of solid plant material were evaluated by the direct QUENCHER method using the same assays. Leaves and flowers of amaranth as well as their extracts possessed the highest antioxidant activities. Radical scavenging capacity in ABTS(+•) assay for leaves, flowers, stems and seeds evaluated by QUENCHER method were 144.24 ± 2.41, 112.33 ± 7.45, 19.05 ± 1.13 and 21.82 ± 1.06 μmol trolox equivalents in 1 g of dry weight, respectively. On-line HPLC-DPPH(•) assay was used to determine the activity of separated compounds and it was observed that rutin was the main radical scavenger in amaranth extracts. Preliminary screening of extract composition was performed by UPLC/ESI-QTOF-MS and rutin, nicotiflorin, isoquercitrin, 4-hydroxybenzoic and p-coumaric acids were identified by measuring their accurate mass and retention time.
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Affiliation(s)
- Paulius Kraujalis
- Department of Food Technology, Kaunas University of Technology, Kaunas, Lithuania
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Kraujalytė V, Venskutonis PR, Pukalskas A, Česonienė L, Daubaras R. Antioxidant properties and polyphenolic compositions of fruits from different European cranberrybush (Viburnum opulus L.) genotypes. Food Chem 2013; 141:3695-702. [PMID: 23993538 DOI: 10.1016/j.foodchem.2013.06.054] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 04/25/2013] [Accepted: 06/12/2013] [Indexed: 01/18/2023]
Abstract
Antioxidant properties of fruit juices of six Viburnum opulus genotypes were evaluated by DPPH, ABTS(+) radical scavenging capacity (RSC), ferric reducing antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC) and Folin-Ciocalteu total phenolic content (TPC) assays. TPC varied in the range of 5.4-10.6 mg gallic acid equivalents/g, RSC (ABTS(+)), FRAP and ORAC values were 31.9-109.8, 32.3-61.8 and 141.6-260.4 μmol trolox equivalents/g, respectively. V. opulus var. sargentii fruit juice was a remarkably stronger antioxidant than the other five V. opulus genotypes. The content of chlorogenic acid (the main phenolic compound in berry juices) depending on plant cultivar varied in the range of 0.54-6.93 mg/ml. The RSC of individual constituents was measured by the on-line HPLC-UV-DPPH method: chlorogenic acid was the dominant radical scavenger in V. opulus P3 (74%), while epicatechin and catechin (the main antioxidants in V. opulus var. sargentii) contributed to 40% and 23% of the total RSC for the sargentii genotype. Nine constituents were identified in V. opulus juice by using ultra high performance liquid chromatography coupled to quadruple and time-of-flight mass spectrometers (UPLC-QTOF-MS). In general, the study demonstrated that V. opulus var. sargentii followed by V. opulus P3 and V. opulus var. americanum possessed the highest antioxidant capacity. The obtained results may assist in selecting the most valuable V. opulus genotypes for the production of fruits possessing strong antioxidant capacity and containing beneficial phenolic constituents.
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Affiliation(s)
- Vilma Kraujalytė
- Department of Food Technology, Kaunas University of Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania
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Slapšytė G, Dedonytė V, Lazutka JR, Mierauskienė J, Morkūnas V, Kazernavičiūtė R, Pukalskas A, Venskutonis PR. Evaluation of the biological activity of naturally occurring 5,8-dihydroxycoumarin. Molecules 2013; 18:4419-36. [PMID: 23591923 PMCID: PMC6269819 DOI: 10.3390/molecules18044419] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 03/21/2013] [Accepted: 04/09/2013] [Indexed: 11/16/2022] Open
Abstract
5,8-Dihydroxycoumarin (5,8-DHC) was isolated from aerial parts of sweet grass (Hierochloë odorata L.) and screened for antioxidant and genotoxic activities. A clear linear dependency of radical scavenging capacity in DPPH• and ABTS•+ assays was determined. 5,8-DHC was very efficient in retarding rapeseed oil oxidation (Oxipress test). TPC (total phenols content) and FRAP (the ability to reduce ferric ion to ferrous ion) assays revealed a somewhat lower antioxidant capacity of 5,8-DHC as compared with gallic acid. Genotoxic activity was tested using different genetic end-points: chromosome aberrations (CAs) and micronuclei (MN) in Wistar rat bone marrow in vivo, CAs and sister chromatid exchanges (SCEs) in human lymphocytes in vitro, and somatic mutations and recombination in Drosophila melanogaster wing cells in vivo. 5,8-DHC did not increase frequency of CAs in rat bone marrow cells, but induced a significant increase of MN. It was slightly mutagenic in the Drosophila melanogaster assay after 120 h of treatment, but not after 48 h of treatment. 5,8-DHC induced both CAs and SCEs in vitro in human lymphocytes in a clear dose-dependent manner. Thus, 5,8-DHC may be classified as weakly genotoxic both in vivo and in vitro.
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Affiliation(s)
- Gražina Slapšytė
- Department of Botany and Genetics, Vilnius University, M.K.Čiurlionis Str. 21/27, LT-03101 Vilnius, Lithuania; E-Mails: (G.S.); (V.D.); (J.R.L.); (J.M.); (V.M.)
| | - Veronika Dedonytė
- Department of Botany and Genetics, Vilnius University, M.K.Čiurlionis Str. 21/27, LT-03101 Vilnius, Lithuania; E-Mails: (G.S.); (V.D.); (J.R.L.); (J.M.); (V.M.)
| | - Juozas R. Lazutka
- Department of Botany and Genetics, Vilnius University, M.K.Čiurlionis Str. 21/27, LT-03101 Vilnius, Lithuania; E-Mails: (G.S.); (V.D.); (J.R.L.); (J.M.); (V.M.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +370-5-239-8257; Fax: +370-5-239-8204
| | - Jūratė Mierauskienė
- Department of Botany and Genetics, Vilnius University, M.K.Čiurlionis Str. 21/27, LT-03101 Vilnius, Lithuania; E-Mails: (G.S.); (V.D.); (J.R.L.); (J.M.); (V.M.)
| | - Vaidotas Morkūnas
- Department of Botany and Genetics, Vilnius University, M.K.Čiurlionis Str. 21/27, LT-03101 Vilnius, Lithuania; E-Mails: (G.S.); (V.D.); (J.R.L.); (J.M.); (V.M.)
| | - Rita Kazernavičiūtė
- Department of Food Technology, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania; E-Mails: (R.K.); (A.P.); (P.R.V.)
| | - Audrius Pukalskas
- Department of Food Technology, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania; E-Mails: (R.K.); (A.P.); (P.R.V.)
| | - Petras Rimantas Venskutonis
- Department of Food Technology, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania; E-Mails: (R.K.); (A.P.); (P.R.V.)
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Bubniene G, Daskeviciene M, Pukalskas A, Jankauskas V, Getautis V. 1,3-Bisdiphenylethenyl-substituted carbazolyl derivatives as charge transporting materials. Molecules 2012; 17:14846-57. [PMID: 23519257 PMCID: PMC6268988 DOI: 10.3390/molecules171214846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 12/09/2012] [Accepted: 12/11/2012] [Indexed: 11/16/2022]
Abstract
Synthesis of 1,3-diphenylethenylcarbazolyl-based charge transporting materials involving electron donating hydrazone moieties and an electron withdrawing 1,3-indandione moiety is reported. The obtained materials were examined by various techniques, including differential scanning calorimetry, UV-Vis spectroscopy, xerographic time of flight technique and the electron photoemission in air method. Photoemission spectra of the amorphous films of the investigated compounds showed ionization potentials of 5.54-5.90 eV. The hole drift mobility was measured by the xerographic time of flight technique. The highest hole drift mobility, exceeding 10(-5) cm(2)/V · s at 6.4 × 10(5) V/cm electric field, was observed for the 1,3-diphenylethenylcarbazolyl derivative molecularly doped with a N,N-diphenylhydrazone moiety in the polymeric host bisphenol-Z polycarbonate (PC-Z).
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Affiliation(s)
- Giedre Bubniene
- Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu pl. 19, Kaunas LT-50254, Lithuania
| | - Maryte Daskeviciene
- Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu pl. 19, Kaunas LT-50254, Lithuania
| | - Audrius Pukalskas
- Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu pl. 19, Kaunas LT-50254, Lithuania
| | - Vygintas Jankauskas
- Department of Solid State Electronics, Vilnius University, Sauletekio 9-III, Vilnius LT-10222, Lithuania
| | - Vytautas Getautis
- Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu pl. 19, Kaunas LT-50254, Lithuania
- Author to whom correspondence should be addressed; ; Tel.: +370-37-300-196; Fax: +370-37-300-152
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Raudonis R, Bumblauskiene L, Jakstas V, Pukalskas A, Janulis V. Optimization and validation of post-column assay for screening of radical scavengers in herbal raw materials and herbal preparations. J Chromatogr A 2010; 1217:7690-8. [DOI: 10.1016/j.chroma.2010.10.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 09/28/2010] [Accepted: 10/04/2010] [Indexed: 11/27/2022]
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Pukalskas A, Venskutonis PR, Dijkgraaf I, van Beek TA. Isolation, identification and activity of natural antioxidants from costmary (Chrysanthemum balsamita) cultivated in Lithuania. Food Chem 2010. [DOI: 10.1016/j.foodchem.2010.03.064] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pukalskas A, van Beek TA, de Waard P. Development of a triple hyphenated HPLC-radical scavenging detection-DAD-SPE-NMR system for the rapid identification of antioxidants in complex plant extracts. J Chromatogr A 2005; 1074:81-8. [PMID: 15941042 DOI: 10.1016/j.chroma.2005.03.089] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A rapid method for the simultaneous detection and identification of radical scavenging compounds in plant extracts was developed by combining an HPLC with on-line radical scavenging using DPPH* as a model radical and an HPLC-DAD-SPE-NMR system. Using this method a commercial rosemary extract was investigated. All major compounds present in the extract were collected on SPE cartridges after their separation. Advantages of on-line SPE peak trapping are the possibility to perform HPLC with non-deuterated solvents, a concentration effect and being able to record NMR spectra in pure 100% deuterated solvents. After comparing DAD and DPPH scavenging chromatograms, 1H NMR spectra of compounds having radical scavenging activities were recorded. Afterwards all compounds were collected and infused into an ESI-MS. The five main active compounds - carnosol, carnosic acid carnosaldehyde, 12-methoxycarnosic acid and epiisorosmanol could be identified from the combined UV, NMR and mass spectral data without actually isolating them. It was possible to record on-line an HMBC spectrum of carnosic acid. Also one compound was tentatively identified as epirosmanol methyl ether.
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Affiliation(s)
- Audrius Pukalskas
- Natural Products Chemistry Group, Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands
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Pukalskas A, van Beek TA, Venskutonis RP, Linssen JPH, van Veldhuizen A, de Groot A. Identification of radical scavengers in sweet grass (Hierochloe odorata). J Agric Food Chem 2002; 50:2914-2919. [PMID: 11982419 DOI: 10.1021/jf011016r] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Extracts from aerial parts of sweet grass (Hierochloe odorata) were active DPPH free radical scavengers. The active compounds were detected in extract fractions using HPLC with on-line radical scavenging detection. After multistep fractionation of the extract, two new natural products possessing radical scavenging activity were isolated, and their structures were elucidated by NMR and MS. They were identified as 5,8-dihydroxybenzopyranone and 5-hydroxy-8-O-beta-D-glucopyranosyl-benzopyranone. Activities of the compounds isolated were tested by DPPH and ABTS free radical scavenging assays, and compared with the known natural antioxidant rosmarinic acid and Trolox.
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Affiliation(s)
- Audrius Pukalskas
- Department of Food Technology, Kaunas University of Technology, Radvilenu pl. 19, LT-3028 Kaunas, Lithuania
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Bandonien≐ D, Pukalskas A, Venskutonis P, Gruzdien≐ D. Preliminary screening of antioxidant activity of some plant extracts in rapeseed oil. Food Res Int 2000. [DOI: 10.1016/s0963-9969(00)00084-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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