摘要:
The present invention provides nucleotide sequences of Macrophomina phaseolina (“M. phaseolina”) that encodes proteins/enzymes with cellulolytic activity, including a cellulase activity, a endoglucanase, a cellobiohydrolase, a β-glucosidase, a a-glucosidase, a xylanase, a mannanse, a β-xylosidase, a a-xylosidase, a galactosidase, an arabinofuranosidase, a a-fucosidases, a β-galactanase, an unsaturated β-glucuronyl hydrolase and/or oligomerase activity. Vectors, expression constructs and host cells comprising and/or consisting of the nucleotide sequences of the enzyme genes are also provided. The invention further provides methods for producing the enzymes and methods for modifying the enzymes in order to improve their desirable characteristics. The enzymes of the invention can be used in a variety of, but not limited to, pharmaceutical, agricultural, food and feed processing, biofuel, energy efficiency and industrial contexts. These enzymes are also useful for complete hydrolysis of lignocellulosic biomass into simple sugar that can then be fermented to liquid fuels and chemical feedstocks.
摘要:
Improved systems and methods for reducing costs and increasing yields of cellulosic ethanol including compositions of matter comprising plant biomass and cell wall-modifying enzyme polypeptides and transgenic plants expression cell wall-modifying enzyme polypeptides.
摘要:
Processes for conveniently and economically producing L-arabinose, enzyme-treated products containing L-arabinose, diet foods and diabetic foods containing L-arabinose with dietary fiber, and fruit or vegetable juices containing L-arabinose are provided. (1) A process for producing L-arabinose by treating a natural material containing arabinan, arabinoxylan or arabinogalactan with an enzyme having an activity of acting on natural substances containing arabinan, arabinoxylan or arabinogalactan and thus releasing L-arabinose to give L-arabinose, characterized in that the above-described natural substance is directly treated with the above-described enzyme without separating or extracting arabinan, arabinoxylan or arabinogalactan. (2) A process for producing a diet food and a diabetic food characterized by comprising treating a dietary fiber material originating in a natural substance containing arabinan, arabinoxylan or arabinogalactan with an enzyme which degrades arabinan, arabinoxylan or arabinogalactan to give an enzyme-treated product containing L-arabinose and dietary fiber, and adding the thus obtained enzyme-treated product to a food. (3) An L-arabinose-containing fruit or vegetable juice characterized by containing an L-arabinose-containing fraction obtained by treating a fruit or vegetable press cake containing arabinan, arabinoxylan or arabinogalactan with an enzyme, and a process for producing the same.
摘要:
The present invention relates to animal feed additives comprising galactanase enzymes. More specifically the invention relates to animal feed additives comprising a arabinogalactan endo-1,4-&bgr;-galactosidase and/or an arabinogalactan endo-1,3-&bgr;-galactosidase.
摘要:
The present invention relates to a method for the modification of cereal bran, a method for the production of a modified cereal bran product as well as the use of such products in the production of food products.
摘要:
The present invention relates to the modification of lipids in lipid-containing plant material, such as cereal bran for the generation of functional lipids. The present invention further relates to the preparation of compositions comprising such functional lipids as well as the use of these compositions comprising functional lipids and other functional compounds derived from the action of lipid modifying enzymes for the preparation of composition suitable for the preparation of bio-ethanol as well as food products, such as bread.
摘要:
The present invention relates to an enzyme with galactanase activity, a DNA construct encoding the enzyme, a method of producing the enzyme, an enzyme composition comprising the enzyme, and the use of the enzyme and enzyme composition for a number of industrial applications.
摘要:
A food-grade vector is provided which is suitable for transforming a food-grade host cell and is incapable of replicating autonomously in the host cell due to deletion of the replicase gene.
摘要:
The present invention relates to a method for the modification of cereal bran, a method for the production of a modified cereal bran product as well as the use of such products in the production of food products.
摘要:
The present invention relates to the modification of lipids in lipid-containing plant material, such as cereal bran for the generation of functional lipids. The present invention further relates to the preparation of compositions comprising such functional lipids as well as the use of these compositions comprising functional lipids and other functional compounds derived from the action of lipid modifying enzymes for the preparation of composition suitable for the preparation of bio-ethanol as well as food products, such as bread.