Results 11 to 20 of about 54 (47)

Comparison of the susceptibility of two hardwood species, Mimosa scabrella Benth and Eucalyptus viminalis labill, to steam explosion and enzymatic hydrolysis

open access: yesBrazilian Archives of Biology and Technology, 2000
Steam explosion of two hardwood species was carried out with and without addition of sulfuric acid (H2SO4 0.5%, p/v) as a pretreatment catalyst. In general, wood chips of Eucalyptus viminalis Labill were shown to be more amenable to pretreatment than ...
L. P. Ramos   +3 more
doaj   +1 more source

Chemical characteristics and Kraft pulping of tension wood from Eucalyptus globulus labill

open access: yesRevista Árvore, 2012
Tension (TW) and opposite wood (OW) of Eucalyptus globulus trees were analyzed for its chemical characteristics and Kraft pulp production. Lignin content was 16% lower and contained 32% more syringyl units in TW than in OW. The increase in syringyl units
María Graciela Aguayo   +4 more
doaj   +1 more source

Modelos de calibração e a espectroscopia no infravermelho próximo para predição das propriedades químicas e da densidade básica da madeira de Eucalyptus.

open access: yesCiência Florestal, 2010
A espectroscopia no infravermelho próximo (NIRS) surge no campo das ciências florestais como método não destrutivo, rápido e preciso capaz de predizer propriedades tecnológicas da madeira.
Lívia Cássia Viana   +4 more
doaj   +1 more source

Caracterização do Engaço da Uva e Avaliação do seu Potencial como Matéria‐Prima Lenhocelulósica

open access: yesMillenium, 2016
O presente estudo avalia a composição química detalhada do engaço da uva de modo a encontrar novas formas para a sua valorização. O engaço da uva é um subproduto vinícola de origem lenhocelulósica, com 30-31% de celulose, 21% de hemicelulose, 17-18% de ...
Sónia Prozil   +3 more
doaj  

Production of xylooligosaccharides from enzymatic hydrolysis of xylan by white-rot fungi Pleurotus = Produção de xilooligossacarídeos pela hidrólise enzimática de xylana por fungos Pleurotus

open access: yesActa Scientiarum: Technology, 2010
Hemicellulose consists of non-cellulosic polysaccharides, with xylans and mannans as their main examples. In nature, xylan can be first degraded to xylooligosaccharides and finally to xylose by certain microorganisms.
Cristiano Ragagnin de Menezes   +5 more
doaj  

Chemical characteristics and Kraft pulping of tension wood from Eucalyptus globulus labill Características químicas e polpação Kraft de madeira de tração de Eucalyptus globulus labill

open access: yesRevista Árvore, 2012
Tension (TW) and opposite wood (OW) of Eucalyptus globulus trees were analyzed for its chemical characteristics and Kraft pulp production. Lignin content was 16% lower and contained 32% more syringyl units in TW than in OW. The increase in syringyl units
María Graciela Aguayo   +4 more
doaj  

Extração de xilana do bagaço de cana-de-açúcar microbiologicamente pré-tratado

open access: yes, 2021
Pós-graduação em Ciências Biológicas (Microbiologia Aplicada ...
openaire   +1 more source

Processo integrado para produção de xilana, briquetes e açúcares fermentáveis

open access: yes, 2021
Lignocellulosic biomass constitutes an enormous potential in the generation of energy and added-value molecules, in addition to directing its use and reducing inappropriate disposal. An integrated process can collaborate for a better use of this material.
openaire   +1 more source

Análise de propriedades de superfície de xilanas modificadas

open access: yes, 2015
Xylans belong to the group of hemicelluloses and are the second most abundant biopolymer in the world, since they incorporate the cell walls of plant cells. They represent a large fraction in various types of agricultural base material, integrating about 20-35% and 5- 15% of the hemicelluloses present in hardwoods and softwoods, respectively.
openaire   +1 more source

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