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The Condensed Tannins of Okoume (Aucoumea Klaineana Pierre)
www.nature.com/scientificreports OPEN The condensed tannins of Okoume (Aucoumea klaineana Pierre): A molecular structure and thermal stability study Starlin Péguy Engozogho Anris 1,2*, Arsène Bikoro Bi Athomo1,2, Rodrigue Safou Tchiama2,3, Francisco José Santiago-Medina4, Thomas Cabaret1, Antonio Pizzi4 & Bertrand Charrier1 In order to promote convenient strategies for the valorization of Aucoumea klaineana Pierre (Okoume) plywood and sawmill wastes industry in the felds of adhesives and composites, the total phenolic content of Okoume bark, sapwood and heartwood was measured. The molecular structure of tannins extracted from the bark was determined by Matrix Assisted Laser Desorption/Ionization Time-Of-Flight (Maldi-ToF) mass spectrometry and Fourier transform infrared spectroscopy (FTIR). The total phenolic content displayed signifcant diference (p = 0.001) between the bark, sapwood and heartwood which decreased as follows: 6 ± 0.4, 2 ± 0.8 and 0.7 ± 0.1% respectively. The pro-anthocyanidins content was also signifcantly diferent (p = 0.01) among the three wood wastes, and the bark was the richest in condensed tannins (4.2 ± 0.4%) compared to the sapwood (0.5 ± 0.1%) and heartwood (0.2 ± 0.2%). Liquid chromatography coupled mass spectroscopy (LC-MS) and Maldi-ToF analysis of the bark showed for the frst time that Okoume condensed tannins are fsetinidin, gallocatechin and trihydroxyfavan based monomers and complex polymers obtained with glycosylated units. No free catechin or robitinidin units were detected, whereas distinctive dihydroxy or trihydroxyfavan-3-benzoate dimers were observed in the investigated condensed tannin extracts. FTIR analysis showed the occurrence of glucan- and mannan-like sugars in the condensed tannins, and Maldi-ToF highlighted that these sugars should account for ten glycosylated units chemically bonded with two fsetinidins and one gallocatechin trimer. -
Araceae), with P
bioRxiv preprint doi: https://doi.org/10.1101/2020.10.05.326850; this version posted October 7, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, Critically Endangered species from Ebo, Cameroon. Martin Cheek¹, Barthelemy Tchiengue2, Xander van der Burgt¹ ¹Science, Royal Botanic Gardens, Kew, Richmond, Surrey, U.K. 2 IRAD-Herbier National Camerounais, Yaoundé, BP 1601, Cameroon Corresponding author: Martin Cheek¹ Email address: [email protected] ABSTRACT This is the first revision in nearly 130 years of the African genus Pseudohydrosme, formerly considered endemic to Gabon. Sister to Anchomanes, Pseudohydrosme is distinct from Anchomanes because of its 2–3-locular ovary (not unilocular), peduncle concealed by cataphylls at anthesis and far shorter than the spathe (not exposed, far exceeding the spathe), stipitate fruits and viviparous (vegetatively apomictic) roots (not sessile, roots non-viviparous). Three species, one new to science, are recognised, in two sections. Although doubt has previously been cast on the value of recognising Pseudohydrosme buettneri, of Gabon, it is here accepted and maintained as a distinct species in the monotypic section, Zyganthera. However, it is considered to be probably globally extinct. Pseudohydrosme gabunensis, type species of the genus, also Gabonese, is maintained in Sect. Pseudohydrosme together with Pseudohydrosme ebo sp.nov. of the Ebo Forest, Littoral, Cameroon, the first addition to the genus since the nineteenth century, and which extends the range of the genus 450 km north from Gabon, into the Cross-Sanaga biogeographic area. -
An Expanded Nuclear Phylogenomic PCR Toolkit for Sapindales1
Applications in Plant Sciences 2016 4(12): 1600078 Applications in Plant Sciences PRIMER NOTE AN EXPANDED NUCLEAR PHYLOGENOMIC PCR TOOLKIT FOR SAPINDALES1 ELIZABETH S. COLLIns2,4, MORGAN R. GOSTEL3, AND ANDREA WEEKS2 2George Mason University, 4400 University Drive, MSN 3E1, Fairfax, Virginia 22030-4444 USA; and 3Department of Botany, National Museum of Natural History, Smithsonian Institution, MRC 166, P.O. Box 37012, Washington, D.C. 20013-7012 USA • Premise of the study: We tested PCR amplification of 91 low-copy nuclear gene loci in taxa from Sapindales using primers developed for Bursera simaruba (Burseraceae). • Methods and Results: Cross-amplification of these markers among 10 taxa tested was related to their phylogenetic distance from B. simaruba. On average, each Sapindalean taxon yielded product for 53 gene regions (range: 16–90). Arabidopsis thaliana (Brassicales), by contrast, yielded product for two. Single representatives of Anacardiaceae and Rutacaeae yielded 34 and 26 products, respectively. Twenty-six primer pairs worked for all Burseraceae species tested if highly divergent Aucoumea klaineana is excluded, and eight of these amplified product in every Sapindalean taxon. • Conclusions: Our study demonstrates that customized primers for Bursera can amplify product in a range of Sapindalean taxa. This collection of primer pairs, therefore, is a valuable addition to the toolkit for nuclear phylogenomic analyses of Sapindales and warrants further investigation. Key words: Anacardiaceae; Burseraceae; low-copy nuclear genes; microfluidic PCR; Rutaceae. Low-copy nuclear gene regions offer increased phyloge- PCR-based target enrichment, a method that allows simultane- netic utility for species- and population-level studies of plants ous and cost-effective amplification of multiple loci (Blow, as compared to chloroplast and nuclear ribosomal markers 2009; Uribe-Convers et al., 2016). -
Inventaire Et Analyse Chimique Des Exsudats Des Plantes D'utilisation Courante Au Congo-Brazzaville
Inventaire et analyse chimique des exsudats des plantes d’utilisation courante au Congo-Brazzaville Arnold Murphy Elouma Ndinga To cite this version: Arnold Murphy Elouma Ndinga. Inventaire et analyse chimique des exsudats des plantes d’utilisation courante au Congo-Brazzaville. Chimie analytique. Université Paris Sud - Paris XI; Université Marien- Ngouabi (Brazzaville), 2015. Français. NNT : 2015PA112023. tel-01269459 HAL Id: tel-01269459 https://tel.archives-ouvertes.fr/tel-01269459 Submitted on 5 Feb 2016 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. UNIVERSITE MARIEN NGOUABI UNIVERSITÉ PARIS-SUD ÉCOLE DOCTORALE 470: CHIMIE DE PARIS SUD Laboratoire d’Etude des Techniques et d’Instruments d’Analyse Moléculaire (LETIAM) THÈSE DE DOCTORAT CHIMIE par Arnold Murphy ELOUMA NDINGA INVENTAIRE ET ANALYSE CHIMIQUE DES EXSUDATS DES PLANTES D’UTILISATION COURANTE AU CONGO-BRAZZAVILLE Date de soutenance : 27/02/2015 Directeur de thèse : M. Pierre CHAMINADE, Professeur des Universités (France) Co-directeur de thèse : M. Jean-Maurille OUAMBA, Professeur Titulaire CAMES (Congo) Composition du jury : Président : M. Alain TCHAPLA, Professeur Emérite, Université Paris-Sud Rapporteurs : M. Zéphirin MOULOUNGUI, Directeur de Recherche INRA, INP-Toulouse M. Ange Antoine ABENA, Professeur Titulaire CAMES, Université Marien Ngouabi Examinateurs : M. -
A Guide to Lesser Known Tropical Timber Species July 2013 Annual Repo Rt 2012 1 Wwf/Gftn Guide to Lesser Known Tropical Timber Species
A GUIDE TO LESSER KNOWN TROPICAL TIMBER SPECIES JULY 2013 ANNUAL REPO RT 2012 1 WWF/GFTN GUIDE TO LESSER KNOWN TROPICAL TIMBER SPECIES BACKGROUND: BACKGROUND: The heavy exploitation of a few commercially valuable timber species such as Harvesting and sourcing a wider portfolio of species, including LKTS would help Mahogany (Swietenia spp.), Afrormosia (Pericopsis elata), Ramin (Gonostylus relieve pressure on the traditionally harvested and heavily exploited species. spp.), Meranti (Shorea spp.) and Rosewood (Dalbergia spp.), due in major part The use of LKTS, in combination with both FSC certification, and access to high to the insatiable demand from consumer markets, has meant that many species value export markets, could help make sustainable forest management a more are now threatened with extinction. This has led to many of the tropical forests viable alternative in many of WWF’s priority places. being plundered for these highly prized species. Even in forests where there are good levels of forest management, there is a risk of a shift in species composition Markets are hard to change, as buyers from consumer countries often aren’t in natural forest stands. This over-exploitation can also dissuade many forest willing to switch from purchasing the traditional species which they know do managers from obtaining Forest Stewardship Council (FSC) certification for the job for the products that they are used in, and for which there is already their concessions, as many of these high value species are rarely available in a healthy market. To enable the market for LKTS, there is an urgent need to sufficient quantity to cover all of the associated costs of certification. -
Analyzing Effects of International Cooperation
SYSTEMATICS AND EVOLUTION OF COMMIPHORA JACQ. (BURSERACEAE) IN MADAGASCAR by Morgan Robert Gostel A Dissertation Submitted to the Graduate Faculty of George Mason University in Partial Fulfillment of The Requirements for the Degree of Doctor of Philosophy Environmental Science and Public Policy Committee: _________________________________________ Dr. Andrea Weeks, Dissertation Director _________________________________________ Dr. Cody Edwards, Committee Member _________________________________________ Dr. James Lawrey, Committee Member _________________________________________ Dr. Donald Seto, Committee Member _________________________________________ Dr. Albert Torzilli, Graduate Program Director _________________________________________ Dr. Robert Jonas, Department Chairperson __________________________________ Dr. Donna Fox, Associate Dean, Student Affairs & Special Programs, College of Science _________________________________________ Dr. Peggy Agouris, Dean, College of Science Date: __________________________________ Summer Semester 2015 George Mason University Fairfax, VA Systematics and Evolution of Commiphora Jacq. (Burseraceae) in Madagascar A dissertation submitted in partial fulfillment of the requirements for the Doctor of Philosophy at George Mason University By Morgan Robert Gostel Master of Science Virginia Commonwealth University, 2010 Bachelor of Science Virginia Commonwealth University, 2008 Director: Andrea Weeks, Associate Professor Department of Biology Summer Semester 2015 George Mason University Fairfax, VA Acknowledgements -
Umlle!L 5 March 1, 1926
\ ale Unh crsity School of ForcstTy TROPICAL WOODS ~ !'<UMllE!l 5 March 1, 1926 The publication ()f CONTENTS Pnut> Notes on New Cabin et Woods from Brazil 1 By KARL SC,HMIEG, President of SchmieA. '.H un~ate & Kotzian1 Inc., New York City Trees of the 'Bayano River Watershed, Panama 4 By H. C. KLUGE, Tropical Forest Engineer, and THE ED)TOR Some Deposits Resembling Lapadiol 13 Cu1Tcnt Literature 15 Yale University School of Fores try TROPICAL WOODS NUMBER 5 !viarch 1, 1926 A technical journal devoted lo thr furtherance of lcnowledgt of tropieal woods andforests and to tbe promotion offorestry in Jhe Tropics. <J'he editor of this publication and the writer of aU articles therein, tbe aulh&r ship of which is not otberwiu i11dicaud, is SAMUEL J. REco11.o, Professor of • l Form Products in rate University . Address all communications to /be editor, '105 Prospect Strut, .Vew Haven, Connecticut, U. S. A. NOTES ON NEW CABINET WOODS FROl\1 BRAZIL By KARL SCHMIEC 1 The making of fine furniture calls for not only the best of the standard cabinet woods of the trade, but also a great many of the rarer and lesser known kinds. In the whole course of our manufacture we use about one hundred different kinds of wood, emanating from all parts of the world. Brazil's ' ' contributions in the past have been few, notably Rosewood, Tulipwood, Kingwood, and Pernambuco \\'ood, but these have been long and favorably known. More recently other woods from that country have become available to cabinet makers and some of these are very promising. -
Characteristics and Availability of Commercially Important Woods Regis B
Chapter 1 Characteristics and Availability of Commercially Important Woods Regis B. Miller hroughout history, the unique characteristics and Contents T comparative abundance of wood have made it a natural material for homes and other structures, furniture, tools, vehicles, and decorative objects. Today, for Timber Resources and Uses 1–2 the same reasons, wood is prized for a multitude of uses. All wood is composed of cellulose, lignin, hemicelluloses, Hardwoods and Softwoods 1–2 and minor amounts (5% to 10%) of extraneous materials Commercial Sources of Wood Products 1–2 contained in a cellular structure. Variations in the characteris- tics and volume of these components and differences in cellu- Use Classes and Trends 1–3 lar structure make woods heavy or light, stiff or flexible, and hard or soft. The properties of a single species are relatively Species Descriptions 1–3 constant within limits; therefore, selection of wood by spe- cies alone may sometimes be adequate. However, to use U.S. Wood Species 1–3 wood to its best advantage and most effectively in engineer- ing applications, specific characteristics or physical properties Hardwoods 1–3 must be considered. Softwoods 1–10 Historically, some species filled many purposes, while other less available or less desirable species served only one or two Imported Woods 1–17 needs. For example, because white oak is tough, strong, and durable, it was highly prized for shipbuilding, bridges, Hardwoods 1–17 cooperage, barn timbers, farm implements, railroad crossties, fence posts, and flooring. Woods such as black walnut and Softwoods 1–33 cherry were used primarily for furniture and cabinets. -
11099/21 ADD 1 CSM/Am TREE.1.A Delegations Will Find
Council of the European Union Brussels, 28 July 2021 (OR. en) 11099/21 ADD 1 ENV 557 WTO 188 COVER NOTE From: European Commission date of receipt: 27 July 2021 To: General Secretariat of the Council No. Cion doc.: D074372/02 - Annex 1 Subject: ANNEX to the COMMISSION REGULATION (EU) …/… amending Council Regulation (EC) No 338/97 on the protection of species of wild fauna and flora by regulating trade therein Delegations will find attached document D074372/02 - Annex 1. Encl.: D074372/02 - Annex 1 11099/21 ADD 1 CSM/am TREE.1.A EN EUROPEAN COMMISSION Brussels, XXX D074372/02 […](2021) XXX draft ANNEX 1 ANNEX to the COMMISSION REGULATION (EU) …/… amending Council Regulation (EC) No 338/97 on the protection of species of wild fauna and flora by regulating trade therein EN EN ‘ANNEX […] Notes on interpretation of Annexes A, B, C and D 1. Species included in Annexes A, B, C and D are referred to: (a) by the name of the species; or (b) as being all of the species included in a higher taxon or designated part thereof. 2. The abbreviation ‘spp.’ is used to denote all species of a higher taxon. 3. Other references to taxa higher than species are for the purposes of information or classification only. 4. Species printed in bold in Annex A are listed there in consistency with their protection as provided for by Directive 2009/147/EC of the European Parliament and of the Council1 or Council Directive 92/43/EEC2. 5. The following abbreviations are used for plant taxa below the level of species: (a) ‘ssp.’ is used to denote subspecies; (b) ‘var(s).’ is used to denote variety (varieties); and (c) ‘fa.’ is used to denote forma. -
Properties of Imported Tropical Woods
1 PROPERTIES OF IMPORTED TROPICAL WOODS_ By B. FRANCIS KUKACHKA, Botanist Forest Products Laboratory,2 Forest Service U.S. Department of Agriculture INTRODUCTION The descriptive text and tabular data compiled such as birch and teak in connection with totally here have been drawn freely from a wide variety unrelated species is bad practice and only adds of sources, but special credit is due the publica- to already existing confusion of names in the wood- tions of the British Forest Products Research using industry. Laboratory and those of the Yale University School The pair of capital letters after the species of Forestry. name serves as a quick reference to the broad Species descriptions are arranged alphabetical- area of origin as AF (Africa), AM (Latin America), ly by generic names. The generic name may be and AS (Southeast Asia). followed by a specific name when the latter is An index of common names with their botanical the sole or principal name used in the timber equivalents is included at the end of this trade. When a number of species are involved report. and it is generally not practical to identify the The average weight of the woods described is precise species from the wood alone, the generic given in pounds per cubic foot and at a moisture name is followed by the designation spp. content of 12 percent, unless otherwise indicated. With well-established species only a single The term “texture” refers only to the diameter common name has been applied, even though it of the pores. may have many local or vernacular names, Kiln schedules for foreign woods are given in particularly if the species has widespread distri- British Forest Products Research Laboratory bution. -
Conservation Research in the African Rain Forests a Technical Handbook
Lee.White.train.Manual.qxd 4/18/02 2:24 PM Page i Conservation research in the African rain forests a technical handbook i Lee.White.train.Manual.qxd 4/18/02 2:24 PM Page ii ii Lee.White.train.Manual.qxd 4/18/02 2:24 PM Page iii Conservation research in the African rain forests a technical handbook EDITED BY Lee White & Ann Edwards Illustrations by Kate Abernethy, Richard Parnell & Deborah Haines Bonobo Pan paniscus iii Lee.White.train.Manual.qxd 4/18/02 2:24 PM Page iv Published by: The Wildlife Conservation Society, New York, U. S. A. Copyright: The Wildlife Conservation Society Any section of this manual may be reproduced without prior agreement of the copyright holder for non-commercial use, provided the source is cited. Reproduction for commercial purposes is forbidden without prior agreement of the copyright holder. Citation: White, L., Edwards, A. eds.. (2000). Conservation research in the African rain forests: a technical handbook. Wildlife Conservation Society, New York. 444 pp., many illustrations. Design: Lee White, Kate Abernethy & Serge Akagha Cover page: Red river hog, Potamochoerus porcus. Drawing and design K. Abernethy. Available from: The Wildlife Conservation Society, 185th St. & Southern Blvd., Bronx, New York, NY 10460-1099, U. S. A. WILDLIFE CONSERVATION SOCIETY Printed by: Multipress-Gabon, Libreville ISBN 0- 9632064-4-3 ENGLISH ISBN 0-9632064-5-1 FRENCH First Edition 2000 D. L. B. N. #### iv Lee.White.train.Manual.qxd 4/18/02 2:24 PM Page v This book was made possible by financial support from: The Protected Area Conservation Strategy (PARCS) project, funded by the United States Agency for International Development (USAID) and managed by the Biodiversity Support Program (BSP), a consortium of the World Wildlife Fund, The Nature Conservancy and the World Resources Institute. -
Foreign Woods Utilized in Maine -1969
FOREIGN WOODS UTILIZED IN MAINE -1969 Norman P. Kutscha LL. Emery TECHNICAL BULLETIN 45 NOVEMBER 1970 LIFE SCIENCES AND AGRICULTURE EXPERIMENT STATION UNIVERSITY OF MAINE AT ORONO Acknowledgment The authors wish to gratefully acknowledge the re view of this bulletin by Dr. Harold A. Core, Professor of Forestry, University of Tennessee, Knoxville, Ten nessee. Cover Photograph: Goncalo alves i>> currently being machined into plane handles (lower right, unstained), brace handles (top, stained) and drill han dles (left, stained). CONTENTS Introduction 3 Procedure 3 Conclusions 11 Appendices I. Letter of Transmittal and Questionnaire 13 II. Possible Species 15 III. Aggregate Volumes 17 IV. Definition of Terms and Species Descriptions 18 V. Bibliography of Selected Publications 64 Contents of Appendix African mahogany 19 Balsa 20 Beefwood Bulletwood 21 Bulletwood, Asian 22 Brazilian mahogany Andiroba 23 Albarco 24 Vinhatico 25 Bubinga 26 Gancalo alves 27 Greenheart Greenheart 28 Dika 29 Guayacan. Bethabara 30 Okan 31 Imbuia 32 Mahogany, genuine 33 Obeche 34 Okoume 35 Peroba Peroba rosa 36 White peroba 37 Philippine mahogany Light Red Almon 3§ Bagtikan 39 Mayapis 40 White lauan 4j Dark Red Red lauan 42 Tanguile 43 Guijo 44 Laumbayau 45 Maranggo 46 Ramin 47 Rosewood Brazilian rosewood 48 Honduras rosewood 49 Amazon rosewood 50 Cocobolo 51 Brazilian tulip wood 52 East Indian rosewood 53 Amyris wood 54 Rosamay 55 Tracwood 56 Sapele Sapele 57 Sipo 58 Spanish cedar 59 Teak, genuine 60 Wenge 61 Zebrawood Okwen 62 Balaustre 63 FOREIGN WOODS UTILIZED IN MAINE - 1969' N. P. Kutscha- and L. L. Emery3 Introduction Over the past decade, there have been definite trends toward in creasing importation of foreign woods into the United States.