<?xml version="1.0"?><rdf:RDF xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:edm="http://www.europeana.eu/schemas/edm/" xmlns:wgs84_pos="http://www.w3.org/2003/01/geo/wgs84_pos" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:rdaGr2="http://rdvocab.info/ElementsGr2" xmlns:oai="http://www.openarchives.org/OAI/2.0/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:ore="http://www.openarchives.org/ore/terms/" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:dcterms="http://purl.org/dc/terms/"><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-K8O1J6BG/554256c3-897f-4961-a5de-059af87d16eb/PDF"><dcterms:extent>1347 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-K8O1J6BG/38717d4d-c2ff-43eb-9236-9edc29d1e48a/TEXT"><dcterms:extent>0 KB</dcterms:extent></edm:WebResource><edm:TimeSpan rdf:about="1998-2024"><edm:begin xml:lang="en">1998</edm:begin><edm:end xml:lang="en">2024</edm:end></edm:TimeSpan><edm:ProvidedCHO rdf:about="URN:NBN:SI:DOC-K8O1J6BG"><dcterms:isPartOf rdf:resource="https://www.dlib.si/details/URN:NBN:SI:spr-EGMI8DWJ" /><dcterms:issued>2024</dcterms:issued><dc:creator>Adu, Sylvia</dc:creator><dc:creator>Antwi, Kwaku</dc:creator><dc:creator>Bih, Francis Kofi</dc:creator><dc:creator>Yeboah, Joseph Appiah</dc:creator><dc:format xml:lang="sl">številka:1</dc:format><dc:format xml:lang="sl">letnik:73</dc:format><dc:format xml:lang="sl">str. 35-44</dc:format><dc:identifier>COBISSID_HOST:213993475</dc:identifier><dc:identifier>ISSN:2590-9932</dc:identifier><dc:identifier>URN:URN:NBN:SI:doc-K8O1J6BG</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="sl">Založba Univerze</dc:publisher><dcterms:isPartOf xml:lang="sl">Les (Ljubljana)</dcterms:isPartOf><dc:subject xml:lang="sl">bark</dc:subject><dc:subject xml:lang="sl">celokupni ekstrakti</dc:subject><dc:subject xml:lang="sl">Holarrhena floribunda</dc:subject><dc:subject xml:lang="sl">les debla/veje</dc:subject><dc:subject xml:lang="sl">Nesogordonia papaverifera</dc:subject><dc:subject xml:lang="sl">skorja</dc:subject><dc:subject xml:lang="sl">stem/branch wood</dc:subject><dc:subject xml:lang="sl">structural components</dc:subject><dc:subject xml:lang="sl">strukturne komponente</dc:subject><dc:subject xml:lang="sl">total extractives</dc:subject><dcterms:temporal rdf:resource="1998-2024" /><dc:title xml:lang="sl">Variability of the chemical composition of the wood and bark of two tropical hardwoods from Ghana| Variabilnost kemične sestave lesa in skorje dveh tropskih listnatih drevesnih vrst iz Gane|</dc:title><dc:description xml:lang="sl">The study aims to investigate the chemical properties of the wood and bark of two tropical tree species Nesogordonia papaverifera and Holarrhena floribunda from Ghanatoincrease the efficiency of their utilization. For this purpose, for each of the species five mature trees with similar diameters at breast height were selected. Lignin, cellulose, hemicellulose, and total extractive content were determined from the sapwood and heartwood and bark of stems and branches of both species. The tests were conducted using the Technical Association of the Pulp and Paper Industry (TAPPI) standards. The lignin, cellulose, hemicellulose, and total extractive content vary along different locations in the stems and branches in both species. The sapwood generally had higher cellulose and hemicellulose content, while the heartwood and bark had a greater amount of lignin and extractives. This may affect the lower durability of sapwood. This study shows that heartwood of both Nesogordonia papaverifera and Holarrhena floribunda can be considered a source of value-added compounds</dc:description><dc:description xml:lang="sl">Raziskana je bila kemična zgradba lesa in skorje dveh tropskih listavcev, Nesogordonia papaverifera in Holarrhena floribunda iz Gane za izboljšanje uporabe. V ta namen je bilo za raziskave izbranih pet odraslih dreves vsake vrste. Debla so imela podobne premere na prsni višini. Določena je bila vsebnost ekstraktivov, lignina, celuloze in hemiceluloz v beljavi in jedrovini ter skorji debel in vej. Testi so bili izvedeni v skladu s standardi tehničnega združenja za celulozo in papir (TAPPI). Vsebnost lignina, celuloze, hemiceluloz in celokupna vsebnost ekstraktivov je bila primerljiva v lesu debel in vej pri obeh vrstah. Vsebnost celuloze in hemiceluloz je bila pri obeh vrstah manjša v skorji kot v lesu. V beljavi smo zabeležili večjo vsebnost celuloze in hemiceluloz, v jedrovini in skorji pa večjo količino lignina in ekstraktivov. To utegne vplivati na slabšo odpornost beljave proti škodljivcem. Študija kaže, da sta jedrovina in skorja obeh vrst Nesogordonia papaverifera in Holarrhena floribunda lahko vir spojin z visoko dodano vrednostjo</dc:description><edm:type>TEXT</edm:type><dc:type xml:lang="sl">znanstveno časopisje</dc:type><dc:type xml:lang="en">journals</dc:type><dc:type rdf:resource="http://www.wikidata.org/entity/Q361785" /></edm:ProvidedCHO><ore:Aggregation rdf:about="http://www.dlib.si/?URN=URN:NBN:SI:DOC-K8O1J6BG"><edm:aggregatedCHO rdf:resource="URN:NBN:SI:DOC-K8O1J6BG" /><edm:isShownBy rdf:resource="http://www.dlib.si/stream/URN:NBN:SI:DOC-K8O1J6BG/554256c3-897f-4961-a5de-059af87d16eb/PDF" /><edm:rights rdf:resource="http://creativecommons.org/licenses/by-nc/4.0/" /><edm:provider>Slovenian National E-content Aggregator</edm:provider><edm:intermediateProvider xml:lang="en">National and University Library of Slovenia</edm:intermediateProvider><edm:dataProvider xml:lang="sl">Zveza lesarjev Slovenije</edm:dataProvider><edm:object rdf:resource="http://www.dlib.si/streamdb/URN:NBN:SI:DOC-K8O1J6BG/maxi/edm" /><edm:isShownAt rdf:resource="http://www.dlib.si/details/URN:NBN:SI:DOC-K8O1J6BG" /></ore:Aggregation></rdf:RDF>