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Chu S, Xia M, Xu P, Lin D, Jiang Y, Lu Y. Single-atom Fe nanozymes with excellent oxidase-like and laccase-like activity for colorimetric detection of ascorbic acid and hydroquinone. Anal Bioanal Chem 2023:10.1007/s00216-023-05077-9. [PMID: 38108842 DOI: 10.1007/s00216-023-05077-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/23/2023] [Accepted: 11/28/2023] [Indexed: 12/19/2023]
Abstract
Although traditional Fe-based nanozymes have shown great potential, generally only a small proportion of the Fe atoms on the catalyst's surface are used. Herein, we synthesized single-atom Fe on N-doped graphene nanosheets (Fe-CNG) with high atom utilization efficiency and a unique coordination structure. Active oxygen species including superoxide radicals (O2•-) and singlet oxygen (1O2) were efficiently generated from the interaction of the Fe-CNG with dissolved oxygen in acidic conditions. The Fe-CNG nanozymes were found to display enhanced oxidase-like and laccase-like activity, with Vmax of 2.07 × 10-7 M∙S-1 and 4.54 × 10-8 M∙S-1 and Km of 0.324 mM and 0.082 mM, respectively, which is mainly due to Fe active centers coordinating with O and N atoms simultaneously. The oxidase-like performance of the Fe-CNG can be effectively inhibited by ascorbic acid (AA) or hydroquinone (HQ), which can directly obstruct the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB). Therefore, a direct and sensitive colorimetric method for the detection of AA and HQ activity was established, which exhibited good linear detection and limit of detection (LOD) of 0.048 μM and 0.025 μM, respectively. Moreover, a colorimetric method based on the Fe-CNG catalyst was fabricated for detecting the concentration of AA in vitamin C. Therefore, this work offers a new method for preparing a single-atom catalyst (SAC) nanozyme and a promising strategy for detecting AA and HQ.
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Affiliation(s)
- Shushu Chu
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Mingyuan Xia
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Peng Xu
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Dalei Lin
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Yuanyuan Jiang
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China.
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2
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Li J, zhou Y, Xiao Y, Cai S, Huang C, Guo S, Sun Y, Song RB, Li Z. Carbon dots as light-responsive oxidase-like nanozyme for colorimetric detection of total antioxidant capacity in fruits. Food Chem 2022; 405:134749. [DOI: 10.1016/j.foodchem.2022.134749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 10/11/2022] [Accepted: 10/23/2022] [Indexed: 11/29/2022]
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3
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Nićetin M, Pezo L, Pergal M, Lončar B, Filipović V, Knežević V, Demir H, Filipović J, Manojlović D. Celery Root Phenols Content, Antioxidant Capacities and Their Correlations after Osmotic Dehydration in Molasses. Foods 2022; 11:foods11131945. [PMID: 35804760 PMCID: PMC9266203 DOI: 10.3390/foods11131945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/21/2022] [Accepted: 06/27/2022] [Indexed: 11/16/2022] Open
Abstract
The osmotic dehydration (OD) of celery root in sugar beet molasses was studied at three temperatures (20, 35, and 50 °C) and three immersion periods (1, 3, and 5 h) in order to examine the changes in antioxidant potential and phenolic profile of celery root throughout the process. The antioxidant capacity (AOC) of dehydrated samples was evaluated by spectrophotometric and polarographic assays, the total phenolic content by the Folin-Ciocalteu method, and the individual phenolic compounds by HPLC-DAD. As a result of OD in molasses, the AOC and phenols content in samples increased proportionally to the augmentation of temperature and the immersion time. Vanillic acid, syringic acid, and catechin were detected in dehydrated samples as a result of transfer from molasses. Compared to fresh celery root, the content of identified phenols in osmodehydrated samples was improved from 1.5 to 6.2 times. Strong correlations between applied assays were obtained, except for the DPPH. Based on the correlation analysis chlorogenic acid, gallic acid, chrysin, catechin, and kaempferol showed the greatest contribution to the overall AOC of osmodehydrated celery root. Molasses, an agro-industrial waste from sugar production, could be valorized as a valuable osmotic solution.
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Affiliation(s)
- Milica Nićetin
- Faculty of Technology Novi Sad, University of Novi Sad, Bul. Cara Lazara 1, 21000 Novi Sad, Serbia; (B.L.); (V.F.); (V.K.)
- Correspondence: ; Tel.: +3-81-214-853-708
| | - Lato Pezo
- Institute of General and Physical Chemistry, University of Belgrade, Studentski Trg. 12–16, 11000 Beograd, Serbia;
| | - Marija Pergal
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Biljana Lončar
- Faculty of Technology Novi Sad, University of Novi Sad, Bul. Cara Lazara 1, 21000 Novi Sad, Serbia; (B.L.); (V.F.); (V.K.)
| | - Vladimir Filipović
- Faculty of Technology Novi Sad, University of Novi Sad, Bul. Cara Lazara 1, 21000 Novi Sad, Serbia; (B.L.); (V.F.); (V.K.)
| | - Violeta Knežević
- Faculty of Technology Novi Sad, University of Novi Sad, Bul. Cara Lazara 1, 21000 Novi Sad, Serbia; (B.L.); (V.F.); (V.K.)
| | - Hande Demir
- Faculty of Engineering, Osmaniye Korkut Ata University, Osmaniye 80000, Turkey;
| | - Jelena Filipović
- Institute of Food Technology, University of Novi Sad, Bul. Cara Lazara 1, 21000 Novi Sad, Serbia;
| | - Dragan Manojlović
- Faculty of Chemistry, University of Belgrade, Studentski Trg. 12–16, 11000 Belgrade, Serbia;
- South Ural State University, 76, Lenin Prospekt, 454080 Chelyabinsk, Russia
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4
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Akintemi EO, Govender KK, Singh T. A DFT study of the chemical reactivity properties, spectroscopy and bioactivity scores of bioactive flavonols. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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5
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Wang MY, Zhang P, Zhang YZ, Yuan XY, Chen RX. Chemical fingerprinting, quantification, and antioxidant activity evaluation of Osmanthus fragrans (Thunb.) Lour. Flowers by UPLC-ECD. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2057530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ming-Yang Wang
- Department of Analytical Chemistry of College of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Ping Zhang
- Analysis and Testing Center of Life Science institute, Zunyi Medical University, Zunyi, China
| | - Yu-Zhu Zhang
- Department of Analytical Chemistry of College of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Xiao-Yan Yuan
- Department of Analytical Chemistry of College of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Rong-Xiang Chen
- Analysis and Testing Center of Life Science institute, Zunyi Medical University, Zunyi, China
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6
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Hollá M, Bílková A, Jakubec P, Košková S, Kočová Vlčková H, Šatínský D, Švec F, Sklenářová H. Benefits and Pitfalls of HPLC Coupled to Diode-Array, Charged Aerosol, and Coulometric Detections: Effect of Detection on Screening of Bioactive Compounds in Apples. Molecules 2021; 26:molecules26113246. [PMID: 34071301 PMCID: PMC8199029 DOI: 10.3390/molecules26113246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 11/16/2022] Open
Abstract
The new screening method for rapid evaluation of major phenolic compounds in apples has been developed. Suitability of coupling HPLC/UHPLC separation with the diode-array detection and universal charged aerosol detection with respect to the presence of interfering substances was tested. Characteristics of both detection techniques were compared and method linearity, limits of detection and quantitation, and selectivity of them determined. Student t-test based on slopes of calibration plots was applied for the detailed comparison. The diode-array detection provided the best results regarding sensitivity and selectivity of the developed method in terms of evaluation of phenolics profiles. The response of the charged aerosol detector was negatively affected by co-eluting substances during rapid-screening analyses. Coulometric detection was used for advanced characterization of extracts in terms of antioxidant content and strength to obtain more complex information concerning sample composition. This detection also allowed evaluation of unidentified compounds with antioxidant activity. HPLC/UHPLC separation using a combination of diode-array and coulometric detectors thus represented the best approach enabling quick, yet complex characterization of bioactive compounds in apples.
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Affiliation(s)
- Marcela Hollá
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic; (M.H.); (A.B.); (P.J.); (S.K.); (H.K.V.); (D.Š.); (F.Š.)
| | - Aneta Bílková
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic; (M.H.); (A.B.); (P.J.); (S.K.); (H.K.V.); (D.Š.); (F.Š.)
- Research and Breeding Institute of Pomology Holovousy Ltd., 50801 Hořice, Czech Republic
| | - Pavel Jakubec
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic; (M.H.); (A.B.); (P.J.); (S.K.); (H.K.V.); (D.Š.); (F.Š.)
| | - Stanislava Košková
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic; (M.H.); (A.B.); (P.J.); (S.K.); (H.K.V.); (D.Š.); (F.Š.)
| | - Hana Kočová Vlčková
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic; (M.H.); (A.B.); (P.J.); (S.K.); (H.K.V.); (D.Š.); (F.Š.)
| | - Dalibor Šatínský
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic; (M.H.); (A.B.); (P.J.); (S.K.); (H.K.V.); (D.Š.); (F.Š.)
| | - František Švec
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic; (M.H.); (A.B.); (P.J.); (S.K.); (H.K.V.); (D.Š.); (F.Š.)
| | - Hana Sklenářová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic; (M.H.); (A.B.); (P.J.); (S.K.); (H.K.V.); (D.Š.); (F.Š.)
- Correspondence: ; Tel.: +420-495-067-453
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7
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de Souza GLC, Peterson KA. Benchmarking Antioxidant-Related Properties for Gallic Acid through the Use of DFT, MP2, CCSD, and CCSD(T) Approaches. J Phys Chem A 2021; 125:198-208. [PMID: 33400511 DOI: 10.1021/acs.jpca.0c09116] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We present a benchmark investigation on the O-H bond dissociation enthalpies (BDEs) and ionization potential (IP) for gallic acid (GA), a widely known polyphenolic antioxidant. These properties were determined in the gas-phase and in water through the use of density functional theory (DFT), second-order Møller-Plesset perturbation theory (MP2), coupled-cluster with single and double excitations (CCSD), and coupled-cluster with single and double excitations as well as perturbative inclusion of triples (CCSD(T)). The 6-311++G(df,p), cc-pVDZ, aug-cc-pVDZ, cc-pVTZ, and aug-cc-pVTZ basis sets were used. Regarding DFT functionals, the M06-2X provided the best agreement for the BDEs when compared to the corresponding CCSD(T)/aug-cc-pVTZ results; M06-2X was also found to be the most suitable for probing the IP for the protonated forms of GA while LC-ωPBE was the most reliable in the case of deprotonated GA. Given that these properties represent important descriptors for examining mechanisms related to the antioxidant potential of a given polyphenol, we hope that the present work can serve as a guide for computational chemists venturing in the field.
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Affiliation(s)
- Gabriel L C de Souza
- Departamento de Química, Universidade Federal de Mato Grosso, Cuiabá, Mato Grosso 78060-900, Brazil.,Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Kirk A Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
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8
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Probing structural properties and antioxidant activity mechanisms for eleocarpanthraquinone. J Mol Model 2020; 26:233. [DOI: 10.1007/s00894-020-04469-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 07/08/2020] [Indexed: 02/08/2023]
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9
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Gorjanović S, Micić D, Pastor F, Tosti T, Kalušević A, Ristić S, Zlatanović S. Evaluation of Apple Pomace Flour Obtained Industrially by Dehydration as a Source of Biomolecules with Antioxidant, Antidiabetic and Antiobesity Effects. Antioxidants (Basel) 2020; 9:antiox9050413. [PMID: 32408574 PMCID: PMC7278621 DOI: 10.3390/antiox9050413] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/04/2020] [Accepted: 05/06/2020] [Indexed: 12/19/2022] Open
Abstract
Apple pomace flour (APF) obtained at industrial scale level by the application of innovative technological process (dehydration (5 h, T ≤ 55 °C), grinding (300 µm)) was evaluated as a source of bioactive compounds with antioxidative, antiobesity and antidiabetic effects. Proximate composition, individual (HPLC–DAD–MS/MS) and total phenols (TPC) as well as flavonoids content (TFC), antioxidant (AO) activity (DPPH, ABTS, HPMC), water and oil holding capacity (WHC and OHC) of APFs obtained from apple pomace from mixed and individual apple cultivars grown conventionally and organically were compared. The effect of APF supplementation on the glycaemic status and glucose tolerance (oral glucose tolerance test (OGTT)) of C57BL/6J mice exposed to high-fat and sucrose diet was examined. High K content (4.2–6.4 g/kg), dietary fibres (35–45 g/100 g), TPC (4.6–8.1 mg GAE/g), TFC (18.6–34.6 mg QE/g), high water and oil holding capacity (4.7–6.4 and 1.3–1.6 g/g) were observed in the APFs. Content of major phenols (phlorizin, chlorogenic acid, quercetin), TPC and TFC correlated highly with prominent AO activity. APF supplementation lowered the increase of body weight gain and blood glucose, and improved glucose tolerance significantly. Health-promoting biomolecules, AO activity, functional properties and prevention of diet-driven glucose metabolism disorders pave the way to APF exploitation in human nutrition.
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Affiliation(s)
- Stanislava Gorjanović
- Institute of General and Physical Chemistry, P.O. Box 45, 11158 Belgrade 118, Serbia;
- Correspondence: (S.G.); (S.Z.); Tel.: +381-612439803 (S.G.); +381-641119641 (S.Z.)
| | - Darko Micić
- Institute of General and Physical Chemistry, P.O. Box 45, 11158 Belgrade 118, Serbia;
| | - Ferenc Pastor
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11080 Belgrade, Serbia; (F.P.); (T.T.)
| | - Tomislav Tosti
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11080 Belgrade, Serbia; (F.P.); (T.T.)
| | - Ana Kalušević
- Institute of Meat Hygiene and Technology, Kaćanskog 13, 11000 Belgrade, Serbia;
| | - Slavica Ristić
- Faculty of Medicine, University of Belgrade, Dr Subotića 8, 11000 Belgrade, Serbia;
| | - Snežana Zlatanović
- Institute of General and Physical Chemistry, P.O. Box 45, 11158 Belgrade 118, Serbia;
- Correspondence: (S.G.); (S.Z.); Tel.: +381-612439803 (S.G.); +381-641119641 (S.Z.)
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10
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Ismail BB, Pu Y, Fan L, Dandago MA, Guo M, Liu D. Characterizing the phenolic constituents of baobab (Adansonia digitata) fruit shell by LC-MS/QTOF and their in vitro biological activities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133387. [PMID: 31386951 DOI: 10.1016/j.scitotenv.2019.07.193] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/12/2019] [Accepted: 07/12/2019] [Indexed: 06/10/2023]
Abstract
Baobab (Adansonia digitata) fruit is a part of the baobab tree, a revered multi-purpose tree native to Africa with a myriad of potentials in providing shelter, food, medicine, clothing and as a valuable source of natural antioxidants. A massive quantity of baobab fruit shells (BFS) is generated as a waste from the baobab fruit processing representing significant economic and environmental challenges at the same time an opportunity for its valorization and commercial utilization. The present study explored the potentials of BFS as a source of phenolic compounds. For this purpose, the phenolic constituents of BFS were identified by LC-MS/QTOF analysis. Also, the Total Phenolic Chromatographic Index (TPCI), TPC, TFC, and antioxidant capacity were compared with the baobab seeds and pulp. The antidiabetic potential through α-amylase and α-glucosidase inhibitory activities was also compared with that of acarbose. The LC-MS/QTOF analysis led to the identification of 45 compounds, including quercetin, kaempferol, proanthocyanidins, phenolic acids and their derivatives, several of which had never been reported in baobab fruit. Moreover, the BFS showed higher TPC, TFC, and antioxidant capacity than the baobab seeds and pulp and inhibited α-amylase and α-glucosidase enzymes activities with much higher potency than acarbose. This research demonstrated the promising potentials of BFS as a good source of phenolic compounds that can further be utilized for food and pharmaceutical applications.
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Affiliation(s)
- Balarabe B Ismail
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China; Department of Food Science & Technology, Faculty of Agriculture, Bayero University, Kano, PMB 3011, Kano, Nigeria
| | - Yunfeng Pu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China
| | - Lihua Fan
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China
| | - Munir A Dandago
- Department of Food Science & Technology, Faculty of Agriculture, Kano University of Science and Technology, Wudil, Kano, PMB 3244, Kano, Nigeria
| | - Mingming Guo
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
| | - Donghong Liu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China; Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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11
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Evaluation of the antioxidant potential of myricetin 3-O-α-L-rhamnopyranoside and myricetin 4′-O-α-L-rhamnopyranoside through a computational study. J Mol Model 2019; 25:89. [DOI: 10.1007/s00894-019-3959-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 02/07/2019] [Indexed: 12/11/2022]
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12
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Tang G, Huang Y, Zhang T, Wang Q, Crommen J, Fillet M, Jiang Z. Determination of phenolic acids in extra virgin olive oil using supercritical fluid chromatography coupled with single quadrupole mass spectrometry. J Pharm Biomed Anal 2018; 157:217-225. [DOI: 10.1016/j.jpba.2018.05.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 05/16/2018] [Accepted: 05/17/2018] [Indexed: 01/07/2023]
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13
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A computational investigation on the antioxidant potential of myricetin 3,4′-di-O-α-L-rhamnopyranoside. J Mol Model 2018; 24:133. [DOI: 10.1007/s00894-018-3663-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/17/2018] [Indexed: 12/17/2022]
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14
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Probing the antioxidant potential of phloretin and phlorizin through a computational investigation. J Mol Model 2018; 24:101. [DOI: 10.1007/s00894-018-3632-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 03/06/2018] [Indexed: 02/07/2023]
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15
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Hermund DB, Plaza M, Turner C, Jónsdóttir R, Kristinsson HG, Jacobsen C, Nielsen KF. Structure dependent antioxidant capacity of phlorotannins from Icelandic Fucus vesiculosus by UHPLC-DAD-ECD-QTOFMS. Food Chem 2018; 240:904-909. [PMID: 28946360 DOI: 10.1016/j.foodchem.2017.08.032] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 08/07/2017] [Accepted: 08/09/2017] [Indexed: 10/19/2022]
Abstract
Brown algae are rich in polyphenolic compounds, phlorotannins, which have been found to possess high in vitro antioxidant capacity, especially DPPH radical scavenging activity, due to the high number of hydroxyl groups. Whereas, the overall antioxidant capacity of brown algae extracts has been widely studied, the antioxidant capacity of individual phlorotannins has been rarely explored. The aim of this study was to determine the structure dependant antioxidant capacity of phlorotannins from Icelandic brown algae, Fucus vesiculosus. The antioxidant capacity of individual phlorotannins was determined by an on-line method using liquid chromatography and an electrochemical detector followed by quadrupole Time of Flight mass spectrometry (UHPLC-DAD-ECD-QTOFMS). Tentative structural elucidation of 13 phlorotannin isomers from EAF was obtained by LC-DAD-QTOFMS, ranging from 374 to 870Da. On-line determination of antioxidant capacity of the individual phlorotannins generally showed that low molecular phlorotannins exhibited higher antioxidant capacity and that the capacity decreased with polymerisation.
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Affiliation(s)
- Ditte B Hermund
- Division of Food Technology, National Food Institute, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Merichel Plaza
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, SE 22100 Lund, Sweden
| | - Charlotta Turner
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, SE 22100 Lund, Sweden
| | | | | | - Charlotte Jacobsen
- Division of Food Technology, National Food Institute, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Kristian Fog Nielsen
- Division of Metabolic Signalling and Regulation, Department of Systems Biology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
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16
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Nilsson A, Salo I, Plaza M, Björck I. Effects of a mixed berry beverage on cognitive functions and cardiometabolic risk markers; A randomized cross-over study in healthy older adults. PLoS One 2017; 12:e0188173. [PMID: 29141041 PMCID: PMC5687726 DOI: 10.1371/journal.pone.0188173] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 11/02/2017] [Indexed: 12/20/2022] Open
Abstract
Background Berries and associated bioactive compounds, e.g. polyphenols and dietary fibre (DF), may have beneficial implications with respect to the metabolic syndrome, including also cognitive functions. The aim of this study was to evaluate effects on cognitive functions and cardiometabolic risk markers of 5 wk intervention with a mixture of berries, in healthy humans. Methods Forty healthy subjects between 50–70 years old were provided a berry beverage based on a mixture of berries (150g blueberries, 50g blackcurrant, 50g elderberry, 50g lingonberries, 50g strawberry, and 100g tomatoes) or a control beverage, daily during 5 weeks in a randomized crossover design. The control beverage (water based) was matched with respect to monosaccharides, pH, and volume. Cognitive tests included tests of working memory capacity, selective attention, and psychomotor reaction time. Cardiometabolic test variables investigated were blood pressure, fasting blood concentrations of glucose, insulin, blood lipids, inflammatory markers, and markers of oxidative stress. Results The daily amounts of total polyphenols and DF from the berry beverage were 795 mg and 11g, respectively. There were no polyphenols or DF in the control beverage. The berry intervention reduced total- and LDL cholesterol compared to baseline (both P<0.05), and in comparison to the control beverage (P<0.005 and P<0.01, respectively). The control beverage increased glucose concentrations (P<0.01) and tended to increase insulin concentrations (P = 0.064) from base line, and increased insulin concentrations in comparison to the berry beverage (P<0.05). Subjects performed better in the working memory test after the berry beverage compared to after the control beverage (P<0.05). No significant effects on the other test variables were observed. Conclusions The improvements in cardiometabolic risk markers and cognitive performance after the berry beverage suggest preventive potential of berries with respect to type 2 diabetes, cardiovascular disease, and associated cognitive decline. Possibly the polyphenols and DF contributed to the beneficial effects. Trial registration ClinicalTrials.gov: NCT01562392.
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Affiliation(s)
- Anne Nilsson
- Food for Health Science Centre, Lund University, Lund, Sweden
- Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden
- * E-mail:
| | - Ilkka Salo
- Department of Psychology, Lund University, Lund, Sweden
| | - Merichel Plaza
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, Lund, Sweden
| | - Inger Björck
- Food for Health Science Centre, Lund University, Lund, Sweden
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Simultaneous fingerprint, quantitative analysis and anti-oxidative based screening of components in Rhizoma Smilacis Glabrae using liquid chromatography coupled with Charged Aerosol and Coulometric array Detection. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1049-1050:41-50. [DOI: 10.1016/j.jchromb.2017.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/18/2017] [Accepted: 02/11/2017] [Indexed: 11/17/2022]
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Green and Efficient Extraction Method to Determine Polyphenols in Cocoa and Cocoa Products. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0830-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Analysis of Polyphenolic Compounds in Extracts from Leaves of Some Malus domestica Cultivars: Antiradical and Antimicrobial Analysis of These Extracts. BIOMED RESEARCH INTERNATIONAL 2016; 2016:6705431. [PMID: 28097143 PMCID: PMC5206859 DOI: 10.1155/2016/6705431] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/17/2016] [Accepted: 11/01/2016] [Indexed: 01/19/2023]
Abstract
In this study, methanol, ethyl acetate, water extracts, and precipitate were obtained from leaves of Malus domestica cultivars: Golden delicious, Jonagold, Elstar, Ligol, and Mutsu. Antiradical activity of these extracts was measured using the ABTS+∙ radical, and antimicrobial activity was measured with the disk-diffusion method. Phenolic compounds were measured with the colorimetric method and identified with high performance liquid chromatography (HPLC). The highest antiradical activity was observed for the Jonagold variety, and in particular strong activity was noted for ethyl acetate extracts. Antimicrobial activity was observed against strains of Staphylococcus aureus, Enterococcus faecalis, and the fungus Candida glabrata. Particularly susceptible to the extracts activity appeared to be Staphylococcus aureus, but the growth of Candida glabrata was inhibited in the presence of ethyl acetate extracts. With the HPLC method we identified a high amount of phloridzin (above 500 mg per g of ethyl acetate extracts), lower amounts of hyperoside, isoquercitrin, and quercitrin, and traces of p-hydroxybenzoic and chlorogenic acids. The contribution of phloridzin to antiradical activity of methanol and ethyl acetate extracts was very high (above 90%). In water extract the contribution of phloridzin was between 38.9 and 55.2%, chlorogenic acid 22.7 and 36.1%, and hyperoside 12.2 and 13.3%.
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Al Hamimi S, Heyman-Lindén L, Plaza M, Turner C, Berger K, Spégel P. Alterations in the plasma metabolite profile associated with improved hepatic function and glycemia in mice fed lingonberry supplemented high-fat diets. Mol Nutr Food Res 2016; 61. [PMID: 27739180 DOI: 10.1002/mnfr.201600442] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 10/04/2016] [Accepted: 10/09/2016] [Indexed: 12/26/2022]
Abstract
SCOPE Lingonberries have been shown to reduce the detrimental effects of high-fat diet (HFD) on weight gain, plasma glucose, and inflammation. However, the extent of effects was recently shown to vary between different batches of berries. Here, we examine the metabolic response to two independent batches of lingonberries. METHODS AND RESULTS Alterations in the phenotype and circulating metabolome elicited by three matched HFDs, two of which containing lingonberries (L1D and L2D) from different sources, were investigated. Glycemia was improved only in mice fed L1D, whereas liver function was improved and inflammation reduced in mice fed both L1D and L2D, compared to mice fed HFD. The unique improvement in glycemia elicited by L1D was associated with a 21% increase in circulating levels of fatty acids. Increased levels of phosphatidylcholines (62%) and lysophosphatidylcholines (28%) and decreased levels of serine (-13%) and sphingomyelins (-26%) were observed in mice fed L1D and L2D, as compared to HFD. CONCLUSION The unique improvement in glycemia in mice fed L1D was associated with a normal metabolic control with an altered set point. Moreover, the batch-independent reduction in liver steatosis and inflammation, was associated with an altered sphingomyelin metabolism.
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Affiliation(s)
- Said Al Hamimi
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, Lund, Sweden
| | | | - Merichel Plaza
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, Lund, Sweden
| | - Charlotta Turner
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, Lund, Sweden
| | - Karin Berger
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Peter Spégel
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, Lund, Sweden.,Department of Clinical Sciences Malmö, Unit of Molecular Metabolism, Lund University Diabetes Centre, Malmö, Sweden
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Plaza M, Batista ÂG, Cazarin CBB, Sandahl M, Turner C, Östman E, Maróstica Júnior MR. Characterization of antioxidant polyphenols from Myrciaria jaboticaba peel and their effects on glucose metabolism and antioxidant status: A pilot clinical study. Food Chem 2016; 211:185-97. [DOI: 10.1016/j.foodchem.2016.04.142] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 04/01/2016] [Accepted: 04/27/2016] [Indexed: 01/13/2023]
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Flavonoids electrochemical detection in fruit extracts and total antioxidant capacity evaluation. Talanta 2016; 154:284-91. [DOI: 10.1016/j.talanta.2016.03.083] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/21/2016] [Accepted: 03/25/2016] [Indexed: 01/08/2023]
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Heyman-Lindén L, Kotowska D, Sand E, Bjursell M, Plaza M, Turner C, Holm C, Fåk F, Berger K. Lingonberries alter the gut microbiota and prevent low-grade inflammation in high-fat diet fed mice. Food Nutr Res 2016; 60:29993. [PMID: 27125264 PMCID: PMC4850145 DOI: 10.3402/fnr.v60.29993] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 02/16/2016] [Accepted: 02/17/2016] [Indexed: 12/15/2022] Open
Abstract
Background The gut microbiota plays an important role in the development of obesity and obesity-associated impairments such as low-grade inflammation. Lingonberries have been shown to prevent diet-induced obesity and low-grade inflammation. However, it is not known whether the effect of lingonberry supplementation is related to modifications of the gut microbiota. The aim of the present study was to describe whether consumption of different batches of lingonberries alters the composition of the gut microbiota, which could be relevant for the protective effect against high fat (HF)-induced metabolic alterations. Methods Three groups of C57BL/6J mice were fed HF diet with or without a supplement of 20% lingonberries from two different batches (Lingon1 and Lingon2) during 11 weeks. The composition and functionality of the cecal microbiota were assessed by 16S rRNA sequencing and PICRUSt. In addition, parameters related to obesity, insulin sensitivity, hepatic steatosis, inflammation and gut barrier function were examined. Results HF-induced obesity was only prevented by the Lingon1 diet, whereas both batches of lingonberries reduced plasma levels of markers of inflammation and endotoxemia (SAA and LBP) as well as modified the composition and functionality of the gut microbiota, compared to the HF control group. The relative abundance of Akkermansia and Faecalibacterium, genera associated with healthy gut mucosa and anti-inflammation, was found to increase in response to lingonberry intake. Conclusions Our results show that supplementation with lingonberries to an HF diet prevents low-grade inflammation and is associated with significant changes of the microbiota composition. Notably, the anti-inflammatory properties of lingonberries seem to be independent of effects on body weight gain.
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Affiliation(s)
| | - Dorota Kotowska
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Elin Sand
- ImaGene-IT, Medicon Village, Lund, Sweden
| | | | - Merichel Plaza
- Department of Chemistry, Center for Analysis and Synthesis, Lund University, Lund, Sweden
| | - Charlotta Turner
- Department of Chemistry, Center for Analysis and Synthesis, Lund University, Lund, Sweden
| | - Cecilia Holm
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Frida Fåk
- Food for Health Science Centre, Lund University, Medicon Village, Lund, Sweden
| | - Karin Berger
- Department of Experimental Medical Science, Lund University, Lund, Sweden
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Struck S, Plaza M, Turner C, Rohm H. Berry pomace - a review of processing and chemical analysis of its polyphenols. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13112] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Susanne Struck
- Chair of Food Engineering; Technische Universität Dresden; 01069 Dresden Germany
| | - Merichel Plaza
- Department of Chemistry; Center for Analysis and Synthesis (CAS); Lund University; SE-221 00 Lund Sweden
| | - Charlotta Turner
- Department of Chemistry; Center for Analysis and Synthesis (CAS); Lund University; SE-221 00 Lund Sweden
| | - Harald Rohm
- Chair of Food Engineering; Technische Universität Dresden; 01069 Dresden Germany
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A DFT investigation on the structural and antioxidant properties of new isolated interglycosidic O-(1 → 3) linkage flavonols. J Mol Model 2016. [PMID: 27037824 DOI: 10.1007/s00894–016–2961–9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We present a computational study on two flavonols that were recently isolated from Loranthaceae family plant extracts: kaempferol 3-O-α-L-arabinofuranosyl-(1 → 3)-α-L-rhamnoside and quercetin 3-O-α-L-arabinofuranosyl-(1 → 3)-α-L-rhamnoside. Their structures and energetics have been investigated at the density functional level of theory, up to B3LYP/6-31+G(d,p), incorporating solvent effects with polarizable continuum models. In addition, their potential antioxidant activities were probed through the computation of the (i) bond dissociation enthalpies (BDEs), which are related to the hydrogen-atom transfer mechanism (HAT), and (ii) ionization potentials (IPs), which are related to the single-electron transfer mechanism (SET). The BDEs were determined in water to be 83.23 kcal/mol for kaempferol 3-O-α-L-arabinofuranosyl-(1 → 3)-α-L-rhamnoside and 77.49 kcal/mol for quercetin 3-O-α-L-arabinofuranosyl-(1 → 3)-α-L-rhamnoside. The corresponding IPs were obtained for both compounds as 133.38 and 130.99 kcal/mol, respectively. The BDEs and IPs are comparable to those probed for their parental molecules kaempferol and quercetin; this is in marked contrast to previous studies where glycosylation at the 3-position increases the corresponding BDEs, and, hence, decreases subsequent antioxidant activity. The BDEs and IPs obtained suggest both compounds are promising for antioxidant activity and thus further experimental tests are encouraged.
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de Souza GLC, de Oliveira LMF, Vicari RG, Brown A. A DFT investigation on the structural and antioxidant properties of new isolated interglycosidic O-(1 → 3) linkage flavonols. J Mol Model 2016; 22:100. [DOI: 10.1007/s00894-016-2961-9] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 03/07/2016] [Indexed: 01/05/2023]
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Rana S, Bhushan S. Apple phenolics as nutraceuticals: assessment, analysis and application. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2016; 53:1727-38. [PMID: 27413201 PMCID: PMC4926896 DOI: 10.1007/s13197-015-2093-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/20/2015] [Accepted: 11/03/2015] [Indexed: 01/08/2023]
Abstract
Humankind is presently engulfed by convenience quench, modern life style and urbanized diet system leading to progression in array of health disorders. The past decade confronted cardiometabolic disorder (21.8 %), lower respiratory and chronic obstructive lung disease (12.5 %) as the major causes of death world over. In anticipation, scientific communities' have demonstrated the role of healthy diets, especially those rich in fruits and vegetables, for management of such health related issues. These horticultural crops are considered as a good source of polyphenols such as dihydrochalcones, flavanols, flavonols, anthocyanins and phenolic acids. The present article reviews the efforts made to assess the potential of apple phenolic compounds present in fresh fruits, leaves, bark and pomace as dietary polyphenols. Considering the positive impact of such phytochemicals on human health, various nutraceuticals, dietary supplements and phenolic-rich food products are presently available on market shelves. On analytical front, improved instrumentation based on liquid chromatography (HPLC, UPLC, LC/MS/MS) have made the assessment of phenolics more rapid and reliable. Thus, owing to the emergent interest in natural compounds, it is pertinent to discuss the latest significant research findings on therapeutic aspects along with probable metabolic mechanisms of dietary polyphenols found in apples and their implications on human health.
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Affiliation(s)
- Shalika Rana
- />Academy of Scientific and Innovative Research, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061 India
- />Division of Biotechnology, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061 India
| | - Shashi Bhushan
- />Academy of Scientific and Innovative Research, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061 India
- />Division of Biotechnology, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061 India
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Peng M, Zhang T, Ding Y, Yi Y, Yang Y, Le J. Structure-based prediction of CAD response factors of dammarane-type tetracyclic triterpenoid saponins and its application to the analysis of saponin contents in raw and processed Panax notoginseng. RSC Adv 2016. [DOI: 10.1039/c6ra03193e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structure-based impacts of saponins on CAD response factors are discovered, and in-depth analysis of saponins in Panax notoginseng is implemented.
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Affiliation(s)
- Ming Peng
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai
- China
- Department of Chemistry
| | - Tong Zhang
- Experiment Center for Teaching and Learning
- Shanghai University of Traditional Chinese Medicine
- Shanghai
- China
| | - Yue Ding
- Experiment Center for Teaching and Learning
- Shanghai University of Traditional Chinese Medicine
- Shanghai
- China
| | - Yaxiong Yi
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai
- China
| | - Yongjian Yang
- Department of Chemistry
- Shanghai Institute for Food and Drug Control
- Shanghai
- China
| | - Jian Le
- Department of Chemistry
- Shanghai Institute for Food and Drug Control
- Shanghai
- China
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Tomášková M, Chýlková J, Mikysek T, Jehlička V. Voltammetric determination of antioxidant 4,4′-methylenebis(2,6-di-tert-butylphenol) in lubricating oils using gold disc electrode. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1562-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ervin EM, Kariuki JK. Demonstrating the Minimal Impact of Cultivation Conditions on Antioxidants in Fruits and Vegetables by Differential Pulse Voltammetry. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2015. [DOI: 10.1080/10942912.2015.1048354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Johnson MC, Thomas AL, Greenlief CM. Impact of Frozen Storage on the Anthocyanin and Polyphenol Contents of American Elderberry Fruit Juice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:5653-5659. [PMID: 26028422 PMCID: PMC4472577 DOI: 10.1021/acs.jafc.5b01702] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The effects of frozen storage on the anthocyanin and polyphenol content of elderberry fruit juice are investigated. Juice from three genotypes of American elderberry (Adams II, Bob Gordon, and Wyldewood) was screened for total phenolic (TP) and total monomeric anthocyanin (TMA) contents with spectrophotometric methods. The individual anthocyanin content (IAC) of the juice was tested by coupling solid phase extraction with ultraperformance liquid chromatography-tandem mass spectrometry. Juice samples were tested initially upon harvest and then again after 3, 6, and 9 months of frozen storage. Juice from the three different genotypes had significantly different TP, TMA, and IAC profiles initially (p < 0.05). The TP, TMA, and IAC contents of the juice from different genotypes were significantly affected (p < 0.05) by the frozen storage time, suggesting that both genotype and length of frozen storage time can affect the anthocyanin content of elderberry fruit juice.
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Affiliation(s)
- Mitch C. Johnson
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211
- Center for Botanical Interaction Studies, University of Missouri, Columbia Missouri 65211
| | - Andrew L. Thomas
- Center for Botanical Interaction Studies, University of Missouri, Columbia Missouri 65211
- Southwest Research Center, University of Missouri, Mt. Vernon, Missouri 65712
| | - C. Michael Greenlief
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211
- Center for Botanical Interaction Studies, University of Missouri, Columbia Missouri 65211
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Fang L, Yang G, Song Y, Li F, Lin N. Application of isoabsorption plots generated by high-performance liquid chromatography with diode array detection to the development of multicomponent quantitative analysis of traditional herbal medicines. J Sep Sci 2014; 37:3245-52. [PMID: 25146493 DOI: 10.1002/jssc.201400711] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 07/24/2014] [Accepted: 08/08/2014] [Indexed: 11/09/2022]
Abstract
Multicomponent quantitative analysis is one of the mainstream quality control methods of traditional herbal medicines. Since the constituents of traditional herbal medicines samples are complex, the development of high-performance liquid chromatography methods is laborious. In this study, an isoabsorption plot, a chromatographic/spectrometric data image plotted by diode array detection was utilized to facilitate the establishment of a high-performance liquid chromatography method by optimizing and validating the detection conditions off-line. Consequently a simple, reliable and accurate method for simultaneous determination of seven active polyphenolic components (protocatechuic acid, chlorogenic acid, caffeic acid, p-coumaric acid, rosmarinic acid, scutellarin, and apigenin) in Qingfei mixture, a long-used Chinese prescription, was developed. The chromatographic separation was performed on a C18 column with gradient elution of phosphoric acid aqueous solution (0.05%, v/v) and acetonitrile, and a wavelength switch program optimized with isoplot was adopted for detection. The method was validated in terms of linearity, sensitivity, precision, repeatability, and accuracy and was successfully applied to the simultaneous determination of the seven polyphenolic components in different production batches of Qingfei Mixture. These results indicated that isoplot is an effective tool to improve the establishment of multicomponent quantitative analysis methods.
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Affiliation(s)
- Luo Fang
- Affiliated Zhejiang Cancer Hospital of Zhejiang Chinese Medical University, Hangzhou, China; College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
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Nagarani G, Abirami A, Siddhuraju P. A comparative study on antioxidant potentials, inhibitory activities against key enzymes related to metabolic syndrome, and anti-inflammatory activity of leaf extract from different Momordica species. FOOD SCIENCE AND HUMAN WELLNESS 2014. [DOI: 10.1016/j.fshw.2014.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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