CHARACTERIZATION BY PYROLYSIS-GAS CHROMATOGRAPHY MASS-SPECTROMETRY OFTHE ALKALILIGNIN OBTAINED FROM WHEAT-STRAW SODA-COOKING EFFLUENTS AFTER TREATMENT WITH STREPTOMYCES STRAINS

Authors
RODRIGUEZ J HERNANDEZ M BOCCHINI P GALLETTI GC ARIAS ME
Citation
J. Rodriguez et al., CHARACTERIZATION BY PYROLYSIS-GAS CHROMATOGRAPHY MASS-SPECTROMETRY OFTHE ALKALILIGNIN OBTAINED FROM WHEAT-STRAW SODA-COOKING EFFLUENTS AFTER TREATMENT WITH STREPTOMYCES STRAINS, Rapid communications in mass spectrometry, 10(15), 1996, pp. 1869-1872
Citations number
14
Categorie Soggetti
Spectroscopy,"Chemistry Analytical
Journal title
Rapid communications in mass spectrometry → ACNP
ISSN journal
09514198
Volume
10
Issue
15
Year of publication
1996
Pages
1869 - 1872
Database
ISI
SICI code
0951-4198(1996)10:15<1869:CBPCMO>2.0.ZU;2-1
Abstract
Alkalilignin samples obtained from untreated paper-mill effluent and e ffluent decolorized by Streptomyces UAH 30 and Streptomyces UAH 51 wer e analyzed by pyrolysis/gas chromatography/mass spectrometry, The mole cular composition of the samples and the chemical modifications occurr ing in the lignin units were studied in order to know the mechanism of decolorization carried out by these microorganisms. The pyrolysis dat a showed a notable reduction in the lignin pyrolysis products of alkal ilignins in effluent decolorized by Streptomyces strains, Moreover, ch emical modifications, such as oxidation and shortening of the side cha in of the phenyl-propyl moieties of lignin were also detected.