DOCSLIB.ORG

Epilobium Angustifolium Isolated from Immunomodulatory Activity Of

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Epilobium Angustifolium Isolated from Immunomodulatory Activity Of Immunomodulatory Activity of Oenothein B Isolated from Epilobium angustifolium Igor A. Schepetkin, Liliya N. Kirpotina, Larissa Jakiw, Andrei I. Khlebnikov, Christie L. Blaskovich, Mark A. Jutila This information is current as and Mark T. Quinn of September 23, 2021. J Immunol 2009; 183:6754-6766; Prepublished online 21 October 2009; doi: 10.4049/jimmunol.0901827 http://www.jimmunol.org/content/183/10/6754 Downloaded from Supplementary http://www.jimmunol.org/content/suppl/2009/10/21/jimmunol.090182 Material 7.DC1 http://www.jimmunol.org/ References This article cites 81 articles, 4 of which you can access for free at: http://www.jimmunol.org/content/183/10/6754.full#ref-list-1 Why The JI? Submit online. • Rapid Reviews! 30 days* from submission to initial decision by guest on September 23, 2021 • No Triage! Every submission reviewed by practicing scientists • Fast Publication! 4 weeks from acceptance to publication *average Subscription Information about subscribing to The Journal of Immunology is online at: http://jimmunol.org/subscription Permissions Submit copyright permission requests at: http://www.aai.org/About/Publications/JI/copyright.html Email Alerts Receive free email-alerts when new articles cite this article. Sign up at: http://jimmunol.org/alerts The Journal of Immunology is published twice each month by The American Association of Immunologists, Inc., 1451 Rockville Pike, Suite 650, Rockville, MD 20852 Copyright © 2009 by The American Association of Immunologists, Inc. All rights reserved. Print ISSN: 0022-1767 Online ISSN: 1550-6606. The Journal of Immunology Immunomodulatory Activity of Oenothein B Isolated from Epilobium angustifolium1 Igor A. Schepetkin,* Liliya N. Kirpotina,* Larissa Jakiw,* Andrei I. Khlebnikov,† Christie L. Blaskovich,* Mark A. Jutila,* and Mark T. Quinn2* Epilobium angustifolium has been traditionally used to treat of a number of diseases; however, not much is known regarding its effect on innate immune cells. In this study, we report that extracts of E. angustifolium activated functional responses in neutrophils and monocyte/macrophages. Activity-guided fractionation, followed by mass spectroscopy and NMR analysis, resulted in the identification of oenothein B as the primary component responsible for phagocyte activation. Oenothein B, a dimeric hydrolysable tannin, dose- ,dependently induced a number of phagocyte functions in vitro, including intracellular Ca2؉ flux, production of reactive oxygen species chemotaxis, NF-␬B activation, and proinflammatory cytokine production. Furthermore, oenothein B was active in vivo, inducing keratinocyte chemoattractant production and neutrophil recruitment to the peritoneum after intraperitoneal administration. Biological activity Downloaded from required the full oenothein B structure, as substructures of oenothein B (pyrocatechol, gallic acid, pyrogallol, 3,4-dihydroxybenzoic acid) were all inactive. The ability of oenothein B to modulate phagocyte functions in vitro and in vivo suggests that this compound is responsible for at least part of the therapeutic properties of E. angustifolium extracts. The Journal of Immunology, 2009, 183: 6754–6766. nhancement of innate immunity by immunomodulators gitannins (24). Ellagitannins are plant polyphenols, and previ- can increase host resistance to pathogens (1), and a num- ous studies have shown that some ellagitannins (e.g., coriariin http://www.jimmunol.org/ E ber of innate immunomodulators have been identified, in- A) exhibit immunomodulatory activity (25). Oenothein B, a cluding cytokines (2), substances isolated from microorganisms dimeric macrocyclic ellagitannin, has been reported to be one of and fungi (3), and substances isolated from plants (4, 5). However, the main biologically active components in Epilobium taxa, and many of these substances are high molecular mass carbohydrates this compound is present in high concentrations in Epilobium (6) or lectins (7), and only a few plant-derived compounds with a species (24). Previous studies on oenothein B have shown that relatively low molecular mass are known to modulate phagocyte oenothein B exhibits significant antioxidant (26), antitumor (14, functions, e.g., taxol (8), phenylpropanoid glycoside acteoside (9), 27–30), antibacterial (31), and antiviral (32) activities. Al- and alkylamides from Echinacea purpurea (10). Thus, there is a though polyphenols are known for their antioxidant activity, significant amount of interest in identifying low molecular mass recent evidence indicates that the therapeutic effects of these by guest on September 23, 2021 compounds with potential medicinal properties. compounds is not solely due to antioxidant properties and that The genus Epilobium is widely distributed around the world and they can directly modulate cellular responses (reviewed in Ref. consists of over 200 species, with the most common being Epilo- 33). For example, it has been reported that oenothein B has bium angustifolium L. Various members of the genus Epilobium antitumor activity and that this may be due to enhancement of have been used in folk medicine to treat a variety of diseases and the host-immune system via induction of IL-1␤ (27). However, enhance wound healing (reviewed in Ref. 11). Indeed, extracts little else has been reported on the effects of oenothein B on from Epilobium taxa have been shown in both in vitro and in vivo innate immunity. Thus, we evaluated the effects of E. angusti- studies to exhibit many therapeutic properties, including anti- folium extracts on phagocyte function. inflammatory (12), antiandrogenic (13), antiproliferative (14, 15), In this study, we report that E. angustifolium extracts can acti- antifungal (16, 17), antimicrobial (18, 19), antinociceptive (20, vate phagocyte functional responses. Furthermore, fractionation of 21), and antioxidant (22, 23) effects. the extracts indicated that the active component was oenothein B. Although the active components responsible for therapeutic Oenothein B activated monocyte/macrophages and neutrophils, re- effects of Epilobium are not well defined, one of the classes of sulting in increased intracellular Ca2ϩ flux, production of reactive bioactive compounds present in Epilobium species is the ella- oxygen species (ROS)3 and cytokines, and chemotaxis. Thus, part of the observed therapeutic effects of oenothein B and Epilobium extracts is due to modulation of innate immune function. *Departments of Veterinary Molecular Biology, Montana State University, Bozeman, MT 59717; and †Department of Chemistry, Altai State Technical University, Barnaul, Russia Materials and Methods Received for publication June 9, 2009. Accepted for publication September 5, 2009. Reagents The costs of publication of this article were defrayed in part by the payment of page Corilagin (1-O-galloyl-3,6-hexahydroxydiphenol-␤-D-glucopyranose) was charges. This article must therefore be hereby marked advertisement in accordance from Toronto Research Chemicals; 1,2,3,4,6-pentakis-O-galloyl-␤-D-glucose with 18 U.S.C. Section 1734 solely to indicate this fact. 1 This work was supported in part by National Institutes of Health Grants P20 RR- 020185, P20 RR-016455, and P01 AT0004986-01; National Institutes of Health 3 Abbreviations used in this paper: ROS, reactive oxygen species; PGG, 1,2,3,4,6- contract HHSN266200400009C; an equipment grant from the M.J. Murdock Chari- pentakis-O-galloyl-␤-D-glucose; fMLF, N-formyl-Met-Leu-Phe; NBT, nitro blue tet- table Trust; and the Montana State University Agricultural Experimental Station. razolium; LAL, Limulus amebocyte lysate; KC, keratinocyte chemoattractant; FI, fold 2 Address correspondence and reprint requests to Dr. Mark T. Quinn, Veterinary increase. Molecular Biology, Montana State University, Bozeman, MT 59717. E-mail address: [email protected] Copyright © 2009 by The American Association of Immunologists, Inc. 0022-1767/09/$2.00 www.jimmunol.org/cgi/doi/10.4049/jimmunol.0901827 The Journal of Immunology 6755 (PGG) was from Sinova; and 8-amino-5-chloro-7-phenylpyridol [3,4- Cell culture d]pyridazine-1,4(2H,3H)-dione (L-012) was obtained from Wako Chemi- cals. Pyrocatechol, gallic acid, pyrogallol, 3,4-dihydroxybenzoic acid, Human monocytic THP-1Blue cells obtained from InvivoGen were cul- Sephadex LH-20 (25–100 ␮m), DMSO, deuterium oxide (D O), EDTA, tured in RPMI 1640 medium supplemented with 10% (v/v) FBS, 100 2 ␮ ␮ ␮ ionomycin, HRP, N-formyl-Met-Leu-Phe (fMLF), horseradish superoxide g/ml streptomycin, 100 U/ml penicillin, 100 g/ml Zeocin, and 10 g/ml dismutase, percoll, HEPES, Histopaque 1077, Histopaque 1119, LPS from blasticidin S. THP-1Blue cells are stably transfected with a secreted em- Escherichia coli K-235, PMA, xanthine oxidase from bovine milk, xan- bryonic alkaline phosphatase gene that is under the control of a promoter ␬ thine, nitro blue tetrazolium (NBT), and zymosan A from Saccharomyces inducible by NF- B. cerevisiae were purchased from Sigma-Aldrich. IL-8 was purchased Pepro- Human leukemia HL-60 cells were cultured in RPMI 1640 supple- mented with 10% (v/v) heat inactivated FCS, 10 mM HEPES, 100 ␮g/ml Tech. Acetone-d6 was from Cambridge Isotope Laboratories. HPLC grade acetonitrile and methanol were from EMD Chemicals (Gibbstown, NJ), streptomycin, and 100 U/ml penicillin. HL-60 cells were differentiated to macrophage-like cells by treatment with 10 nM PMA for 3 days (35). All and HPLC grade H2O and trifluoroacetic acid were from Mallinckrodt Baker. HBSS (pH 7.4), with and without Ca2ϩ and Mg2ϩ (HBSSϩ and cultured cells were grown at
Load more

Recommended publications
  • Walnut Polyphenol
    ORYZA OIL & FAT CHEMICAL CO., L TD. WALNUT POLYPHENOL Hepatoprotective & Anti-oxidative Extract For Metabolic Syndrome ■ WALNUT POLYPHENOL-P10,P30 (Powder，Food Grade) ■ WALNUT POLYPHENOL-WSP10 (Water-soluble Powder，Food Grade) ■ WALNUT POLYPHENOL-PC10,PC30 （Powder，Cosmetic Grade） ■ WALNUT POLYPHENOL-WSPC10 （Water-soluble Powder，Cosmetic Grade） ■ WALNUT POLYPHENOL-LC （Water-soluble Liquid，Cosmetic Grade） ■ WALNUT SEED OIL （Oil，Food & Cosmetic Grade） ORYZA OIL & FAT CHEMICAL CO., LTD ver. 1.0 HS WALNUT POLYPHENOL ver.1.0 HS WALNUT POLYPHENOL Hepatoprotective & Anti-oxidative Extract For Metabolic Syndrome 1. Introduction Recently, there is an increased awareness on metabolic syndrome – a condition characterized by a group of metabolic risk factors in one person. They include abdominal obesity, atherogenic dyslipidemia, elevated blood pressure, insulin resistance, prothrombotic state & proinflammatory state. The dominant underlying risk factors appear to be abdominal obesity and insulin resistance. In addition, non-alcoholic fatty liver disease (NAFLD) is the most commonly associated “liver” manifestation of metabolic syndrome which can progress to advance liver disease (e.g. cirrhosis) with associated morbidity and mortality. Lifestyle therapies such as weight loss significantly improve all aspects of metabolic syndrome, as well as reducing progression of NAFLD and cardiovascular mortality. Walnut (Juglans regia L. seed) is one the most popular nuts consumed in the world. It is loaded in polyunsaturated fatty acids – linoleic acid (LA), oleic acid and α-linolenic acid (ALA), an ω3 fatty acid. It has been used since ancient times and epidemiological studies have revealed that incorporating walnuts in a healthy diet reduces the risk of cardiovascular diseases. Recent investigations reported that walnut diet improves the function of blood vessels and lower serum cholesterol.
    [Show full text]
  • Tannins: Current Knowledge of Food Sources, Intake, Bioavailability and Biological Effects
    S310 DOI 10.1002/mnfr.200900039 Mol. Nutr. Food Res. 2009, 53, S310 – S329 Review Tannins: Current knowledge of food sources, intake, bioavailability and biological effects Jos Serrano1, Riitta Puupponen-Pimi2, Andreas Dauer3, Anna-Marja Aura2 and Fulgencio Saura-Calixto4 1 Universidad Complutense de Madrid, Depto. Nutricin y Bromatologa I, Madrid, Spain 2 VTT Technical Research Center of Finland 3 Hexal AG, Holzkirchen, Germany 4 Consejo Superior de Investigaciones Cientficas, Instituto del Frio, Depto. Metabolismo y Nutricin, Madrid, Spain Tannins are a unique group of phenolic metabolites with molecular weights between 500 and 30000 Da, which are widely distributed in almost all plant foods and beverages. Proanthocyanidins and hydrolysable tannins are the two major groups of these bioactive compounds, but complex tannins containing structural elements of both groups and specific tannins in marine brown algae have also been described. Most literature data on food tannins refer only to oligomeric compounds that are extracted with aqueous-organic solvents, but a significant number of non-extractable tannins are usu- ally not mentioned in the literature. The biological effects of tannins usually depend on their grade of polymerisation and solubility. Highly polymerised tannins exhibit low bioaccessibility in the small intestine and low fermentability by colonic microflora. This review summarises a new approach to analysis of extractable and non-extractable tannins, major food sources, and effects of storage and processing on tannin content and bioavailability. Biological properties such as antioxidant, antimicro- bial and antiviral effects are also described. In addition, the role of tannins in diabetes mellitus has been discussed. Keywords: Bioavailability / Diet / Hydrolysable tannins / Proanthocyanidins / Tannins / Received: November 27, 2007; revised: January 25, 2009; accepted: February 9, 2009 1 Introduction weight having the ability to complex strongly with carbohy- drates and proteins [9].
    [Show full text]
  • Punicalin Alleviates OGD/R-Triggered Cell Injury Via TGF-Β-Mediated Oxidative Stress and Cell Cycle in Neuroblastoma Cells SH-SY5Y
    Hindawi Evidence-Based Complementary and Alternative Medicine Volume 2021, Article ID 6671282, 11 pages https://doi.org/10.1155/2021/6671282 Research Article Punicalin Alleviates OGD/R-Triggered Cell Injury via TGF-β-Mediated Oxidative Stress and Cell Cycle in Neuroblastoma Cells SH-SY5Y Tiansong Yang,1 Qingyong Wang,2 Yuanyuan Qu,2 Yan Liu,1 Chuwen Feng,1 Yulin Wang,2 Weibo Sun,3 Zhongren Sun ,2 and Yulan Zhu4 1First affiliated hospital, Heilongjiang University of Chinese Medicine, Harbin, China 2Heilongjiang University of Chinese Medicine, Harbin, China 3Harbin Medical University, Harbin, China 4Department of Neurology, %e Second Affiliated Hospital of Harbin Medical University, Harbin, China Correspondence should be addressed to Zhongren Sun; [email protected] Received 21 October 2020; Revised 21 October 2020; Accepted 7 January 2021; Published 12 February 2021 Academic Editor: Muhammad Farrukh Nisar Copyright © 2021 Tiansong Yang et al. /is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Purpose. /e research aimed to identify the active component from Punica granatum L. to alleviate ischemia/reperfusion injury and clarify the underlying mechanism of the active component alleviating ischemia/reperfusion injury. Materials and Methods. /e SH-SY5Y cell model of oxygen-glucose deprivation/reoxygenation (OGD/R) was established to simulate the ischemia/ reperfusion injury. According to the strategy of bioassay-guided isolation, the active component of punicalin from Punica granatum L. was identified. Flow cytometry and Western blotting were employed to evaluate the effects of OGD/R and/or punicalin on cell cycle arrest.
    [Show full text]
  • Antioxidant Rich Extracts of Terminalia Ferdinandiana Inhibit the Growth of Foodborne Bacteria
    foods Article Antioxidant Rich Extracts of Terminalia ferdinandiana Inhibit the Growth of Foodborne Bacteria Saleha Akter 1 , Michael E. Netzel 1, Ujang Tinggi 2, Simone A. Osborne 3, Mary T. Fletcher 1 and Yasmina Sultanbawa 1,* 1 Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Health and Food Sciences Precinct, 39 Kessels Rd, Coopers Plains, QLD 4108, Australia 2 Queensland Health Forensic and Scientific Services, 39 Kessels Rd, Coopers Plains, QLD 4108, Australia 3 CSIRO Agriculture and Food, 306 Carmody Road, St Lucia, QLD 4067, Australia * Correspondence: [email protected]; Tel.: +617-344-32471 Received: 26 June 2019; Accepted: 20 July 2019; Published: 24 July 2019 Abstract: Terminalia ferdinandiana (Kakadu plum) is a native Australian plant containing phytochemicals with antioxidant capacity. In the search for alternatives to synthetic preservatives, antioxidants from plants and herbs are increasingly being investigated for the preservation of food. In this study, extracts were prepared from Terminalia ferdinandiana fruit, leaves, seedcoats, and bark using different solvents. Hydrolysable and condensed tannin contents in the extracts were determined, as well as antioxidant capacity, by measuring the total phenolic content (TPC) and free radical scavenging activity using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay. Total phenolic content was higher in the fruits and barks with methanol extracts, containing the highest TPC, hydrolysable tannins, and DPPH-free radical scavenging capacity (12.2 2.8 g/100 g dry weight ± (DW), 55 2 mg/100 g DW, and 93% respectively). Saponins and condensed tannins were highest in ± bark extracts (7.0 0.2 and 6.5 0.7 g/100 g DW).
    [Show full text]
  • Pomegranate: Nutraceutical with Promising Benefits on Human Health
    Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 8 September 2020 Review Pomegranate: nutraceutical with promising benefits on human health Anna Caruso 1, +, Alexia Barbarossa 2,+, Antonio Tassone 1 , Jessica Ceramella 1, Alessia Carocci 2,*, Alessia Catalano 2,* Giovanna Basile 1, Alessia Fazio 1, Domenico Iacopetta 1, Carlo Franchini 2 and Maria Stefania Sinicropi 1 1 Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Arcavacata di Rende (Italy); anna.caruso@unical .it (Ann.C.), [email protected] (A.T.), [email protected] (J.C.), [email protected] (G.B.), [email protected] (A.F.), [email protected] (D.I.), [email protected] (M.S.S.) 2 Department of Pharmacy‐Drug Sciences, University of Bari “Aldo Moro”, 70126, Bari (Italy); [email protected] (A.B.), [email protected] (Al.C.), [email protected] (A.C.), [email protected] (C.F.) + These authors equally contributed to this work. * Correspondence: [email protected] Abstract: The pomegranate, an ancient plant native to Central Asia, cultivated in different geographical areas including the Mediterranean basin and California, consists of flowers, roots, fruits and leaves. Presently, it is utilized not only for the exterior appearance of its fruit but above all, for the nutritional and health characteristics of the various parts composing this last one (carpellary membranes, arils, seeds and bark). The fruit, the pomegranate, is rich in numerous chemical compounds (flavonoids, ellagitannins, proanthocyanidins, mineral salts, vitamins, lipids, organic acids) of high biological and nutraceutical value that make it the object of study for many research groups, particularly in the pharmaceutical sector.
    [Show full text]
  • Raspberry Pomace - Composition, Properties and Application
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE European Journal ISSN 2449-8955 Review Article of Biological Research Raspberry pomace - composition, properties and application Agnieszka Joanna Brodowska Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Łódź University of Technology, Stefanowskiego 4/10, 90-924 Łódź, Poland * Corresponding author: Agnieszka Brodowska; E-mail: [email protected] Received: 19 February 2017; Revised submission: 24 March 2017; Accepted: 03 April 2017 Copyright: © The Author(s) 2017. European Journal of Biological Research © T.M.Karpi ński 2017. This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial 4.0 International License, which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited. DOI : http://dx.doi.org/10.5281/zenodo.495190 ABSTRACT industry by-product, is considered as a potential food ingredient. Its pomace contains plenty of Raspberry pomace can be valorised due to its valuable components such as carbohydrates, nutritionally favourable effect on human health. proteins, fats, fibre, flavours, pectins, vitamins, It is an important source of polyphenols, ellagic similar to the composition of whole raspberries [2]. acid, ellagitannins, tocopherols, unsaturated fatty Moreover, raspberry pomace is rich in a large group acids, and dietary fibre. Thus, raspberry pomace of various phenolics especially ellagitannins, can be considered as a potential raw material to proanthocyanidins, anthocyanins, flavonols, and receive products rich in polyphenols or dietary phenolic acids (especially, ellagic acid) which are fibre, which can provide healthy properties to food also predominant in berries [3].
    [Show full text]
  • Ellagitannin–Lipid Interaction by HR-MAS NMR Spectroscopy
    molecules Article Ellagitannin–Lipid Interaction by HR-MAS NMR Spectroscopy Valtteri Virtanen * , Susanna Räikkönen, Elina Puljula and Maarit Karonen Natural Chemistry Research Group, Department of Chemistry, University of Turku, FI-20014 Turku, Finland; [email protected] (S.R.); [email protected] (E.P.); maarit.karonen@utu.fi (M.K.) * Correspondence: vtjvir@utu.fi; Tel.: +358-29-450-3205 Abstract: Ellagitannins have antimicrobial activity, which might be related to their interactions with membrane lipids. We studied the interactions of 12 different ellagitannins and pentagalloylglucose with a lipid extract of Escherichia coli by high-resolution magic angle spinning NMR spectroscopy. The nuclear Overhauser effect was utilized to measure the cross relaxation rates between ellagitannin and lipid protons. The shifting of lipid signals in 1H NMR spectra of ellagitannin–lipid mixture due to ring current effect was also observed. The ellagitannins that showed interaction with lipids had clear structural similarities. All ellagitannins that had interactions with lipids had glucopy- ranose cores. In addition to the central polyol, the most important structural feature affecting the interaction seemed to be the structural flexibility of the ellagitannin. Even dimeric and trimeric ellagitannins could penetrate to the lipid bilayers if their structures were flexible with free galloyl and hexahydroxydiphenoyl groups. Keywords: E. coli; HR-MAS-NMR; interaction; lipid membrane; tannins; UPLC-DAD-MS Citation: Virtanen, V.; Räikkönen, S.; Puljula, E.; Karonen, M. 1. Introduction Ellagitannin–Lipid Interaction by HR-MAS NMR Spectroscopy. Tannins are a group of specialized plant metabolites, which, when included in the di- Molecules 2021, 26, 373. etary feed of ruminants, have been shown to induce many beneficial effects such as increas- https://doi.org/10.3390/ ing their effective amino acid absorption, lowering their methane production, and acting as molecules26020373 anthelmintics [1–6].
    [Show full text]
  • One Step Purification of Corilagin and Ellagic Acid from Phyllanthus
    PHYTOCHEMICAL ANALYSIS Phytochem. Anal. 13, 1–3 (2002) DOI: 10.1002/pca.608 One Step Purification of Corilagin and Ellagic Acid from Phyllanthus urinaria using High-Speed Countercurrent Chromatography Liu Jikai,1* Huang Yue,1 Thomas Henkel2 and Karlheinz Weber2 1Department of Phytochemistry, Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming 650204, People s Republic of China 2Bayer AG, Pharma Research, D-42096 Wuppertal, Germany High-speed countercurrent chromatography (HSCCC) has been successfully applied to the preparative separation of corilagin and ellagic acid in one step from the Chinese medicinal plant Phyllanthus urinaria L. by use of direct and successive injections of a crude methanolic extract. Some aspects concerning the practical use of this technique in the described application are considered. Copyright # 2001 John Wiley & Sons, Ltd. Keywords: High-speed countercurrent chromatography (HSCCC); one step purification; corilagin; ellagic acid; Phyllanthus urinaria. INTRODUCTION al., 1993; Cheng et al., 1995) and infectious disease (anti- viral, Yoon et al., 2000). The present report deals with the one-step isolation of compounds 1 and 2 from the Most separations in the natural product field are methanolic extract of aerial parts of P. urinaria, and performed through chromatography on solid supports, demonstrates the rapid and efficient access of the but all-liquid techniques are currently attracting con- constituents using HSCCC. siderable interest. High-speed countercurrent chroma- tography (HSCCC) is an all-liquid technique that employs no solid support and functions using a multi- layer coil rotating at high speed in a device that creates a fluctuating acceleration field which produces successive bands of mixing and settling along a continuous tube (Conway, 1995).
    [Show full text]
  • 1 Universidade Federal Do Rio De Janeiro Instituto De
    UNIVERSIDADE FEDERAL DO RIO DE JANEIRO INSTITUTO DE QUÍMICA PROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA DE ALIMENTOS Ana Beatriz Neves Martins DEVELOPMENT AND STABILITY OF JABUTICABA (MYRCIARIA JABOTICABA) JUICE OBTAINED BY STEAM EXTRACTION RIO DE JANEIRO 2018 1 Ana Beatriz Neves Martins DEVELOPMENT AND STABILITY OF JABUTICABA (MYRCIARIA JABOTICABA) JUICE OBTAINED BY STEAM EXTRACTION Dissertação de Mestrado apresentada ao Programa de Pós-graduação em Ciência de Alimentos do Instituto de Química, da Universidade Federal do Rio de Janeiro como parte dos requisitos necessários à obtenção do título de Mestre em Ciência de Alimentos. Orientadores: Prof.ª Mariana Costa Monteiro Prof. Daniel Perrone Moreira RIO DE JANEIRO 2018 2 3 Ana Beatriz Neves Martins DEVELOPMENT AND STABILITY OF JABUTICABA (MYRCIARIA JABOTICABA) JUICE OBTAINED BY STEAM EXTRACTION Dissertação de Mestrado apresentada ao Programa de Pós-graduação em Ciência de Alimentos do Instituto de Química, da Universidade Federal do Rio de Janeiro como parte dos requisitos necessários à obtenção do título de Mestre em Ciência de Alimentos. Aprovada por: ______________________________________________________ Presidente, Profª. Mariana Costa Monteiro, INJC/UFRJ ______________________________________________________ Profª. Maria Lúcia Mendes Lopes, INJC/UFRJ ______________________________________________________ Profª. Lourdes Maria Correa Cabral, EMPBRAPA RIO DE JANEIRO 2018 4 ACKNOLEDGEMENTS Ninguém passa por essa vida sem alguém pra dividir momentos, sorrisos ou choros. Então, se eu cheguei até aqui, foi porque jamais estive sozinha, e não poderia deixar de agradecer aqueles que estiveram comigo, fisicamente ou em pensamento. Primeiramente gostaria de agradecer aos meus pais, Claudia e Ricardo, por tudo. Pelo amor, pela amizade, pela incansável dedicação, pelos valores passados e por todo esforço pra que eu pudesse ter uma boa educação.
    [Show full text]
  • Inhibitory Effect of Tannins from Galls of Carpinus Tschonoskii on the Degranulation of RBL-2H3 Cells
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Tsukuba Repository Inhibitory effect of tannins from galls of Carpinus tschonoskii on the degranulation of RBL-2H3 Cells 著者 Yamada Parida, Ono Takako, Shigemori Hideyuki, Han Junkyu, Isoda Hiroko journal or Cytotechnology publication title volume 64 number 3 page range 349-356 year 2012-05 権利 (C) Springer Science+Business Media B.V. 2012 The original publication is available at www.springerlink.com URL http://hdl.handle.net/2241/117707 doi: 10.1007/s10616-012-9457-y Manuscript Click here to download Manuscript: antiallergic effect of Tannin for CT 20111215 revision for reviewerClick here2.doc to view linked References Parida Yamada･Takako Ono･Hideyuki Shigemori･Junkyu Han･Hiroko Isoda Inhibitory Effect of Tannins from Galls of Carpinus tschonoskii on the Degranulation of RBL-2H3 Cells Parida Yamada･Junkyu Han･Hiroko Isoda (✉) Alliance for Research on North Africa, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan Takako Ono･Hideyuki Shigemori･Junkyu Han･Hiroko Isoda Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan Corresponding author Hiroko ISODA, Professor, Ph.D. University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan Tel: +81 29-853-5775, Fax: +81 29-853-5776. E-mail: [email protected] 1 Abstract In this study, the anti-allergy potency of thirteen tannins isolated from the galls on buds of Carpinus tschonoskii (including two tannin derivatives) was investigated. RBL-2H3 (rat basophilic leukemia) cells were incubated with these compounds, and the release of β-hexosaminidase and cytotoxicity were measured.
    [Show full text]
  • Experimental Section
    N° d’ordre : 4542 THÈSE PRÉSENTÉE A L’UNIVERSITÉ BORDEAUX 1 ÉCOLE DOCTORALE DES SCIENCES CHIMIQUES Par Daniela Melanie DELANNOY LOPEZ POUR OBTENIR LE GRADE DE DOCTEUR SPÉCIALITÉ : CHIMIE ORGANIQUE Synthèse de dérivés de polyphénols bioactifs pour l’étude de leurs interactions avec des protéines Directeur de recherche : Pr. Stéphane Quideau Soutenue le : 02 Juillet 2012 Après avis de : Mme RENARD, C. Directrice de Recherche, INRA-Avignon Rapporteur M. MONTI J. Professeur Universite de Bordeaux 2 Rapporteur Devant la commission d’examen formée de : Mme RENARD, C. Directrice de Recherche, INRA-Avignon Rapporteur M. MONTI J. Professeur Universite de Bordeaux 2 Rapporteur M. GENOT E. Group leader, IECB Université Bordeaux 2 Présidente M. Di Primo C. Chargé de recherche, Université Bordeaux Examinateur M. DEFFIEUX, D. Maître de conférence, Université Bordeaux 1 Co-directeur de thèse M. QUIDEAU, S. Professeur, Université Bordeaux 1 Directeur de thèse Table of Contents Acknowledgements…………………………………………………………………...………5 Résumé en français…………………………………..……………………………………….8 List of communications………………………….………………………………………….12 Introduction……………..…………………………………………………………………...13 Chapter I. Polyphenol-Protein Interactions ........................................................................ 16 Ia. Polyphenols ................................................................................................................... 17 Ia.1 Physico-chemical properties of polyphenols ............................................................... 24 Ia.2 Antioxidant/Pro-oxidant
    [Show full text]
  • Biologically Plant-Based Pigments in Sustainable Innovations for Functional Textiles – the Role of Bioactive Plant Phytochemicals
    Heriot-Watt University Research Gateway Biologically plant-based pigments in sustainable innovations for functional textiles – The role of bioactive plant phytochemicals Citation for published version: Thakker, A & Sun, D 2021, 'Biologically plant-based pigments in sustainable innovations for functional textiles – The role of bioactive plant phytochemicals', Journal of Textile Science and Fashion Technology , vol. 8, no. 3, pp. 1-25. https://doi.org/10.33552/JTSFT.2021.08.000689 Digital Object Identifier (DOI): 10.33552/JTSFT.2021.08.000689 Link: Link to publication record in Heriot-Watt Research Portal Document Version: Publisher's PDF, also known as Version of record Published In: Journal of Textile Science and Fashion Technology General rights Copyright for the publications made accessible via Heriot-Watt Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policy Heriot-Watt University has made every reasonable effort to ensure that the content in Heriot-Watt Research Portal complies with UK legislation. If you believe that the public display of this file breaches copyright please contact [email protected] providing details, and we will remove access to the work immediately and investigate your claim. Download date: 25. Sep. 2021 ISSN: 2641-192X DOI: 10.33552/JTSFT.2021.08.000689 Journal of Textile Science & Fashion Technology Review Article Copyright © All rights are reserved by Alka Madhukar Thakker Biologically Plant-Based Pigments in Sustainable Innovations for Functional Textiles – The Role of Bioactive Plant Phytochemicals Alka Madhukar Thakker* and Danmei Sun School of Textiles and Design, Heriot-Watt University, UK *Corresponding author: Alka Madhukar Thakker, School of Textiles and Design, He- Received Date: March 29, 2021 riot-Watt University, TD1 3HF, UK.
    [Show full text]