The composition and chemiluminescence of acidolysis lignins from native Chilean hardwoods

Autor:	Marcela Haun, Nelson Durán, Hector Mansilla
Rok vydání:	1996
Předmět:	Nothofagus biology Quillaja saponaria Forestry biology.organism_classification chemistry.chemical_compound chemistry Lithraea caustica Botany Hardwood Lignin Nothofagus obliqua General Materials Science Cryptocarya alba Composition (visual arts)
Zdroj:	Holz als Roh- und Werkstoff. 54:131-135
ISSN:	1436-736X 0018-3768
Popis:	Five native species from Chile were studied. Lignins isolated from Nothofagus obliqua (roble blanco), Nothofagus glauca (roble colorado), Lithraea Caustica (litre), Quillaja saponaria (quillay) and Cryptocarya alba (peumo), classified as hardwood species, were subjected to chemical and spectroscopic analysis. A high extinction coeffcient at 280 nm correlates with the high free phenolic group content of the lignins of these species. Nothofagus glauca exhibited a high methoxyl content (19.3%) and the lower phenolic content (1.38%). The chemiluminescent behaviour of these lignins was found to be directly proportional to phenolic groups content and inversely proportional to the methoxyl content.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::66f210fdbc6fc924828428c867181e9b https://doi.org/10.1007/s001070050152 Zobrazit plný text záznamu Full text from SpringerLink