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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/48818
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dc.creatorGliciane Ramos Azevedo Oliveirapt_BR
dc.creatorFábio Dos Santos Graselpt_BR
dc.creatorGevany Paulino de Pinhopt_BR
dc.creatorFlaviano Oliveira Silvériopt_BR
dc.date.accessioned2023-01-10T13:36:42Z-
dc.date.available2023-01-10T13:36:42Z-
dc.date.issued2020-05-
dc.citation.volume147pt_BR
dc.citation.spage112200pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.indcrop.2020.112200pt_BR
dc.identifier.issn1872-633Xpt_BR
dc.identifier.urihttp://hdl.handle.net/1843/48818-
dc.description.resumoAcacia mearnsii De Wild. has been cultivated in Brazil mainly for the extraction of tannins from bark, but its wood has been used to complement the demand for hardwood in the pulp and paper industries. However, few studies have been carried out aiming to characterize the chemical composition of the wood lipophilic extracts from this species. Some compounds of these extract may generate sticky deposits in machinery in the paper and pulp mills, known as pitch. In general, woods with a higher content of lipophilic extracts generate more problems and damage caused by pitch deposits. So, this paper details the chemical composition of the lipophilic extracts of A. mearnsii woods of four ages (4, 7, 10 and 13-year-old) cultivated in Brazil. The wood from 7, 10 and 13-years-old trees showed similar amounts of lipophilic extracts ranging from 0.23 to 0.28 % (w/w). However, the 4-year-old wood presented more than twice that value i.e. 0.60 % (w/w). These lipophilic extracts were analyzed by GC–MS before and after alkaline hydrolysis, followed by derivatization. The main chemical classes found were fatty acids (27.1–95.0 mg kg−1), sterols (20.5–55.7 mg kg−1) and aromatic compounds (0.750–13.2 mg kg−1), followed by smaller amounts of long chain aliphatic alcohol (0.00–3.46 mg kg−1) and hydrocarbons (0.00–2.62 mg kg−1), before and after hydrolysis. The results showed that the wood extracts from 7, 10 and 13-year-old trees were similar from the quantitative and qualitative points of view, indicating that harvests over 7 years of age offer less propensity for pitch problems.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofIndustrial Crops and Productspt_BR
dc.rightsAcesso Restritopt_BR
dc.subject.otherAcáciapt_BR
dc.subject.otherTaninospt_BR
dc.titleComparison of chemical composition of lipophilic extracts from Acacia mearnsii De Wild. wood of different agespt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0926669020301163pt_BR
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