La presente invention concerne des procedes pour modifier une matiere textile cellulosique, consistant a traiter la matiere textile cellulosique avec une composition comprenant une xyloglucane endotransglycosylase et (a) une xyloglucane polymere et un oligomere de xyloglucane fonctionnalise comprenant un groupement chimique ; (b) une xyloglucane polymere fonctionnalisee avec un groupement chimique et un oligomere de xyloglucane fonctionnalise comprenant un groupement chimique ; (c) une xyloglucane polymere fonctionnalisee avec un groupement chimique et un oligomere de xyloglucane ; (d) une xyloglucane polymere fonctionnalisee avec un groupement chimique ; ou (e) un oligomere de xyloglucane fonctionnalise comprenant un groupement chimique, dans des conditions menant a une matiere textile cellulosique modifiee, dans lesquelles la matiere textile cellulosique modifiee possede une amelioration textile par rapport a la matiere textile cellulosique non modifiee. La presente invention concerne egalement des matieres textiles cellulosiques modifiees ayant une amelioration textile.

L'invention concerne des preparations contenant au moins un agent benefique sur le plan agricole, prepare avec du xyloglucane polymere servant de support, ainsi que l'utilisation de ces preparations.

The instability in the energy and petrochemical markets observed over the past few years is likely to continue in the future with both higher and more volatile oil prices, which have the potential to destabilize economic, political, and social activities. The globally abundant industrial lignins, the so-called “technical lignins”, have the potential to replace a significant fraction of petrochemicals if combined, in the future, with residual lignins produced at the emerging advanced lignocellulose biorefineries. In this context, technical lignins could play a buffering role capable of, at least partially, mitigating the negative effects of the future “oil crunch” we might need to face. However, significant technical progress must still be achieved in our quest to see industrial lignins as viable feedstock in the chemical industry. This chapter reviews the properties, some relevant applications, the analytical particularities of technical lignins, as well as some aspects of their production and the challenges faced for their incorporation in the chemical industry.

This chapter contains sections titled: Abstract Introduction Isolation of lignin and LCC preparations/samples from wood and pulps Lignin and LCC analysis Conclusions Acknowledgment References

A bacterial enzyme efficiently breaks down cellulose and hemicellulose without the help of other enzymes. [Also see Report by Brunecky et al. ]

Development of sustainable energy systems based on renewable biomass feedstocks is now a global effort. Lignocellulosic biomass contains polymers of cellulose, hemicellulose, and lignin, bound together in a complex structure. Liquid biofuels, such as ethanol, can be made from biomass via fermentation of sugars derived from the cellulose and hemicellulose within lignocellulosic materials, but the biomass must be subjected to pretreatment processes to liberate the sugars needed for fermentation. Production of value-added co-products along-side biofuels through integrated biorefinery processes creates the need for selectivity during pretreatment. This paper presents a survey of biomass pretreatment technologies with emphasis on concepts, mechanism of action and practicability. The advantages and disadvantages, and the potential for industrial applications of different pretreatment technologies are the highlights of this paper.