Biomass is pretreated using a low concentration of aqueous ammonia at high biomass concentration. Pretreated biomass is further hydrolyzed with a saccharification enzyme consortium. Fermentable sugars released by saccharification may be utilized for the production of target chemicals by fermentation.

Treatment of biomass to obtain fermentable sugars

The present invention relates to isolated polypeptides having cellulolytic enhancing activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.

Polypeptides having cellulolytic enhancing activity and polynucleotides encoding same

Target chemicals were produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

Treatment of biomass to obtain a target chemical

The present invention relates to methods for degrading or converting a cellulosic material and for producing a substance from a cellulosic material.

Methods for enhancing the degradation or conversion of cellulosic material

The present invention relates to isolated polypeptides having beta-glucosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.

Polypeptides having beta-glucosidase activity and polynucleotides encoding same

An enzyme exhibiting xylanase activity, which enzyme is immunologically reactive with an antibody raised against a purified xylanase derived from Aspergillus aculeatus, CBS 101.43. The enzyme may be used for degrading plant cell wall components e.g. in the preparation of feed, in baking, in the paper and pulp industry and in connection with separation of wheat into starch and gluten.

Enzymes with xylanase activity from aspergillus aculeatus

The invention relates to a 35 kDa enzyme exhibiting aminopeptidase activity which is derived from a fungal microorganism, a DNA construct comprising a DNA sequence encoding said enzyme, a recombinant expression vector comprising said DNA construct, and a cell comprising said DNA sequence It is also an object of the invention to provide a method for producing said enzyme exhibiting aminopeptidase activity, and an enzyme preparation comprising said enzyme, a bread-improving or dough-improving composition comprising the aminopeptidase of the invention Finally the invention relates to the use of said enzyme exhibiting aminopeptidase activity or enzyme preparations or compositions thereof

An enzyme with aminopeptidase activity

The present invention relates to an enzyme exhibiting aminopeptidase activity, a method for producing said enzyme, an enzyme preparation containing said enzyme exhibiting aminopeptidase activity, and use of said enzyme for various industrial purposes.

Enzymes with aminopeptidase activity

Enzyme mit xylanaseaktivität aus aspergillus aculeatus

On decrit une enzyme qui presente une activite de xylanase et reagit sur le plan immunologique avec un anticorps dirige contre une xylanase purifiee derivee d'Aspergillus Aculeatus, CBS 101.43. On peut utiliser cette enzyme pour degrader des elements de parois cellulaires vegetales, par exemple pour preparer des aliments destines aux animaux, pour la cuisson, dans l'industrie papetiere et pour separer l'amidon et le gluten du ble.

Joan Qi Si

Papers

Enzymes with xylanase activity from aspergillus aculeatus

An enzyme with aminopeptidase activity

Enzymes with aminopeptidase activity

Enzyme mit xylanaseaktivität aus aspergillus aculeatus

Enzymes derivees d'aspergillus aculeatus presentant une activite de xylanase