Bayer Bioscience Gmbh

Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Celanese Ventures Gmbh

Other

Bayer Cropscience Ag

Planttec Biotechnologie Gmbh

Martin Quanz

Claus Frohberg

Volker Buttcher

Jens Kossmann

Holger Bengs

Bernd Essigmann

Karola Knuth

Thomas Welsh

Stephan Soyka

Volker Büttcher

Nicholas Provart

Gisela Jacobasch

Detlef Schmiedl

J&ouml;rg Riesmeier

Michael B&auml;uerlein

Max Weissm&uuml;ller

The present invention relates to fungal cells and fungi which synthesize hyaluronan and to methods for preparing such fungi, and also to methods for preparing hyaluronan with the aid of these fungal cells or fungi. Furthermore, the present invention relates to the use of fungi for preparing hyaluronan and to food or feed which comprises hyaluronan.

Methods and means for producing hyaluronan

Nucleic acid molecules which encode a branching enzyme from a bacterium of the genus, vectors, host cell, plant cells and plants containing said nucleic acid molecules as well as starch obtainable from the plants described are described. Furthermore, an in-vitro method for producing &#x3b1;-1,6-branched &#x3b1;-1,4-glucans on the basis of sucrose and a combination of enzymes of an amylosucrase and a branching enzyme as well as the &#x3b1;-1,6-branched &#x3b1;-1,4-glucans obtainable by said method are described.

Method for the producing alpha-1, 6-branched alpha-1, 4-glucans from sucrose

Method for producing alpha-1, 6-branched alpha-1, 4-glucans from sucrose

Nucleic acid molecules which encode a branching enzyme from a bacterium of the genus Neisseria, vectors, host cell, plant cells and plants containing said nucleic acid molecules as well as starch obtainable from the plants described are described. Furthermore, an in-vitro method for producing &#x3b1;-1,6-branched &#x3b1;-1,4-glucans on the basis of sucrose and a combination of enzymes of an amylosucrase and a branching enzyme as well as the &#x3b1;-1,6-branched &#x3b1;-1,4-glucans obtainable by said method are described.

Method for producing &#x3b1;-1, 6-branched &#x3b1;-1, 4-glucans from sucrose

Nucleic acid molecules encoding an alternansucrase are provided. Moreover, vectors, host cells and plant cells transformed by the herein-described nucleic acid molecules and plants containing them are provided. Furthermore, methods are described for preparing transgenic plants which synthesize the carbohydrate alternan, because of the insertion of nucleic acid molecules encoding an alternansucrase. Moreover, methods for preparing alternan and products resulting from them are provided.

Nucleic acid molecules encoding alternansucrase

Nucleic acid molecules which encode a branching enzyme from a bacterium of the genus Neisseria, vectors, host cell, plant cells and plants containing said nucleic acid molecules as well as starch obtainable from the plants described are described. Furthermore, an in-vitro method for producing &agr;-1,6-branched &agr;-1,4-glucans on the basis of sucrose and a combination of enzymes of an amylosucrase and a branching enzyme as well as the &agr;-1,6-branched &agr;-1,4-glucans obtainable by said method are described.

Method for producing &agr;-1,6-branched &agr;-1,4-glucans from sucrose

The invention relates to a production method of &agr;-amylase resistant polysaccharides with high RS content, comprising the following steps: a) producing a paste of water-insoluble poly-(1,4-&agr;-D-glucan) and water; b) heating the paste; c) cooling off and retrogradation of the past at a temperature that is lower than the temperature of the heated paste and d) optionally drying the resulting product.

&agr;-Amylase-resistant polysaccharides, production method, use and foods containing these polysaccharides

The invention relates to a method for producing polysaccharides containing &agr;-1,4-glucan chains. According to the inventive method, a glucosyl group acceptor undergoes a chain prolongation reaction by reacting it with saccharose in the presence of an amylosaccharase. The amount of the glucosyl group acceptor in the reaction mixture is chosen in such a way that the mole ratio of the available ends of the glucosyl group acceptor to the saccharose is at least 1:1,000 and/or the weight ratio of the glucosyl group acceptor to the saccharose is at least 1:0.

Polysaccharides containing &agr;-1,4-glucan chains and method for producing same

Transgenic plant cells and plants with an increased activity of an amylosucrase protein and an increased activity of a branching enzyme are provided. Such plant cells and plants synthesize a modified starch and/or synthesize &agr;-1,6 branched &agr;-1,4-glucans with a modified branching degree in O-6-position and/or give a higher yield in comparison with corresponding genetically non-modified wild type plants (plant cells).

Growing community of inventors

Berlin, Germany

Martin Quanz