Pyrolysis-gas chromatography/mass spectrometry of milled wood lignin of two Chilean woods naturally decayed by Ganoderma australe, Phlebia chrysocrea and a brown-rot fungus

Terrón, María C.; Fidalgo, María Leonor; Galletti, Guido C.; González, Aldo

doi:10.1016/0165-2370(94)00861-t

Cited by 33 publications

(17 citation statements)

References 21 publications

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“…In some tropical pastures and secondary forests, dead wood left over from a preexisting primary forest is reported to account for a large fraction (up to 87 %) of the aboveground biomass [Ewel et al, 1981 [Terron et al, 1995]. For initial exploration of the effect of lignin content on biomass fire emissions, we burned one sample of Ponderosa pine wood which had been decomposed by brown rot and had a lignin content of 66.4%.…”

Section: Experimental Details Fuel Selection Objectivesmentioning

confidence: 99%

Emissions from smoldering combustion of biomass measured by open‐path Fourier transform infrared spectroscopy

Yokelson¹,

Susott²,

Ward³

et al. 1997

J. Geophys. Res.

375

368

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Abstract. Biomass samples from a diverse range of ecosystems were burned in the Intermountain Fire Sciences Laboratory open combustion facility. Midinfrared spectra of the nascent emissions were acquired at several heights above the fires with a Fourier transform infrared spectrometer (FTIR) coupled to an open multipas• cell. In this report, the results from smoldering combustion during 24 fires are presented including production of carbon dioxide, carbon monoxide, methane, ethene, ethyne, propene, formaldehyde, 2-hydroxyethanal, methanol, phenol, acetic acid, formic acid, ammonia, hydrogen cyanide, and carbonyl sulfide. These were the dominant products observed, and many have significant influence on atmospheric chemistry at the local, regional, and global scale. Included in these results are the first optical, in situ measurements of smoke composition from fires in grasses, hardwoods, and organic soils. About one half of the detected organic emissions arose from fuel pyrolysis which produces white smoke rich in oxygenated organic compounds. These compounds deserve more attention in the assessment of fire impacts on the atmosphere. The compound 2-hydroxyethanal is a significant component of the smoke, and it is reported here for the first time as a product of fires. Most of the observed alkane and ammonia production accompanied visible glowing combustion. NH3 is normally the major nitrogen-containing emission detected from smoldering combustion of biomass, but from some smoldering organic soils, HCN was dominant. Tar condensed on cool surfaces below the fires accounting for • 1% of the biomass burned, but it was enriched in N by a factor of 6 -7 over the parent material, and its possible role in postfire nutrient cycling should be further investigated.

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Section: Experimental Details Fuel Selection Objectivesmentioning

confidence: 99%

Emissions from smoldering combustion of biomass measured by open‐path Fourier transform infrared spectroscopy

Yokelson¹,

Susott²,

Ward³

et al. 1997

J. Geophys. Res.

375

368

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“…Come risultato della Py-GC-MS, è stato prodotto un pirogramma, dal quale è risultato possibile individuare quattordici picchi attribuibili ai fenoli costituenti della lignina (Terron et al, 1995;Del Rio et al, 2001;Yokoi et al, 1999). Il materiale legnoso pirolizzato infatti produce una miscela di fenoli semplici, risultanti dalla scissione dei legami C-O-C e C-C tra le unità fenoliche della lignina, e di eterocicli di tipo furanico derivanti dalla degradazione termica dei carboidrati.…”

Section: Pirolisi-gascromatografia-spettrometria DI Massa E Analisi Dunclassified

“…Il materiale legnoso pirolizzato infatti produce una miscela di fenoli semplici, risultanti dalla scissione dei legami C-O-C e C-C tra le unità fenoliche della lignina, e di eterocicli di tipo furanico derivanti dalla degradazione termica dei carboidrati. I fenoli prodotti mantengono gli schemi di sostituzione che avevano nel polimero (H o p-idrossifeniliche, G o pguaiaciliche, S o p-siringiliche) e di conseguenza può essere effettuata la loro classificazione e distinzione (del Rio et al, 2001;Galletti et al, 1995;Terron et al, 1995), come riportato in tabella (Tab. 1).…”

Section: Pirolisi-gascromatografia-spettrometria DI Massa E Analisi Dunclassified

Management and estimate of forest utilization value in Piedmont

Brun¹,

Mosso²,

Blanc³

2015

Atti Del Secondo Congresso Internazionale Di Selvicoltura = Proceedings of the Second International Congress of Silviculture

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Quanto esposto è di esclusiva proprietà scientifica e intellettuale degli Autori ed esclude ogni responsabilità del curatore e dell'Editore. Intellectual and scientific property is exclusively of the authors of each contribution and does not entail responsibility of the editor and the publisher Con il patrocinio di / Under the Patronage of-Presidenza del Consiglio dei Ministri -Ministero delle politiche agricole alimentari e forestali -Ministero dei beni e delle attività culturali e del turismo -Ministero dell'ambiente e della tutela del territorio e del mare -Conferenza delle Regioni e delle Province Autonome -Expo Milano 2015 -La Toscana verso EXPO -Toscana Promozione -Università di Firenze -Consiglio per la Ricerca e la Sperimentazione in Agricoltura -Progetto Integral -Istituto Nazionale di Economia Agraria -GESAAF-Dipartimento di gestione dei sistemi agrari, alimentari e forestali dell'università di Firenze -Provincia di Firenze -Comune di Firenze -Accademia dei Georgofili -Consiglio dell'Ordine Nazionale dei dottori agronomi e dei Dottori Forestali (CONAF) -Società Italiana di Selvicoltura ed Ecologia Forestale (SISEF) -Unione Nazionale delle Accademie per le Scienze Applicate allo Sviluppo dell'Agricoltura, alla Sicurezza Alimentare ed alla Tutela Ambientale (UNASA) -Unione Zoologica Italiana Con il contributo di / SESSION 1 -ECOLOGY, BIODIVERSITY, GENETICS AND FOREST ADAPTATION PROCESSES TO CLIMATE CHANGE Chairpersons Marco Borghetti, Raffaello GianniniRelazioni Orali / Oral presentations Paffetti D., Fiorentini S., Vettori C., Bottalico F., Buonamici A., Maltoni A., Nocentini S., Giannini R., Travaglini D. -La struttura genetica spaziale della diversità genetica può essere utilizzata come indicatore di vetustà dei boschi di faggio? Primi risultati in Italia centrale - » 208 Lombardi F., Parisi F., Sciarretta A., Campanaro A., Tognetti R., Chirici G., Trematerra P., Marchetti M. -Relazioni tra struttura forestale, indicatori di naturalità e fauna saproxilica: un caso studio nell'abetina di "Abeti Soprani" (Molise) After a brief presentation of the policy and scientific debate on the concept of governance as applied to the forestry sector, the paper focuses on 5 statements: (1) the transition from conventional forms of government to new modes of governance is a very progressive process, and never a complete change; (2) the integration of the stakeholders and the public in decision-making processes still provides the main characteristic of governance systems as they presently work; (3) curiously, searching for"good" governance usually leads to a clear re-consideration of the importance of the traditional role of the State, which was never considered as an initial objective; (4) monitoring governance requires specific assessment framework for follow-up; (5) governance does not necessarily lead to sustainability (and vice-versa). Considering that both forest and forestry form a social-ecological system, the presentation calls for re-defining forest action as a process for adapting the objective of sustaina...

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“…Py-GC/MS has been used e.g. for characterization of wood and pulp [18], HMWMs in sediments and surface waters downstream of a pulp mill [17], and TCF bleaching liquor [6]. To our knowledge, however, no reports have appeared dealing with the comparison of Py-GC/MS of HMWMs in ECF and TCF bleaching liquors.…”

Section: Introductionmentioning

confidence: 99%

“…Analytical pyrolysis coupled with gas chromatography/mass spectrometry (Py-GC/MS) has a wide variety of applications in the characterization of natural macromolecules such as HMWM of pulp mill effluents, including lignin and carbohydrate compounds [6][7][8][9][10][11][12][13][14][15][16][17][18]. The pyrolysis technique is rapid and requires only minimal sample preparation and a very small amount of sample (ca.…”

Section: Introductionmentioning

confidence: 99%

Characterization of high molecular mass material in ECF and TCF bleaching liquors by Py-GC/MS with and without TMAH methylation

Kukkola

Knuutinen

Paasiv́irta

et al. 2006

Journal of Analytical and Applied Pyrolysis

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Pyrolysis-gas chromatography/mass spectrometry of milled wood lignin of two Chilean woods naturally decayed by Ganoderma australe, Phlebia chrysocrea and a brown-rot fungus

Cited by 33 publications

References 21 publications

Emissions from smoldering combustion of biomass measured by open‐path Fourier transform infrared spectroscopy

Emissions from smoldering combustion of biomass measured by open‐path Fourier transform infrared spectroscopy

Management and estimate of forest utilization value in Piedmont

Characterization of high molecular mass material in ECF and TCF bleaching liquors by Py-GC/MS with and without TMAH methylation

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