The present invention discloses a method for preparing bread by fermentation with compounded sourdough, and belongs to the technical field of food. The method compounds saccharomycetes and lactic acid bacteria to prepare the compounded sourdough. Compared with spontaneous sourdough, the fermentation performance is similar, the quality is stable, the culture period is shortened, and the compounded sourdough can be used to replace the spontaneous sourdough to prepare bread by fermentation. Moreover, the nutritional value of the compounded sourdough bread is much higher than that of the commercial yeast bread using only a single type of yeast, both in terms of the total content of free amino acids and the content of essential amino acids. The compounded sourdough provided by the present invention has extremely high industrial application value.

The present invention discloses a method for preparing bread by fermentation with compounded sourdough, and belongs to the technical field of food. The method compounds saccharomycetes and lactic acid bacteria to prepare the compounded sourdough. Compared with spontaneous sourdough, the fermentation performance is similar, the quality is stable, the culture period is shortened, and the compounded sourdough can be used to replace the spontaneous sourdough to prepare bread by fermentation. Moreover, the nutritional value of the compounded sourdough bread is much higher than that of the commercial yeast bread using only a single type of yeast, both in terms of the total content of free amino acids and the content of essential amino acids. The compounded sourdough provided by the present invention has extremely high industrial application value.

A variant polypeptide having alpha-amylase activity, wherein the variant has an amino acid sequence which, when aligned with the alpha-amylase comprising the sequence set out in SEQ ID NO: 2, comprises at least one substitution of an amino acid residue. Such a variant polypeptide may be used in the preparation of a baked product.

Bagel products are formed by (a) mixing flour and water together with yeast to form a sourdough; (b) preparing an activated malt extract by mixing barley malt extract, a second amount of yeast, and water; (c) mixing the sourdough, the activated malt extract, and salt with flour to form a final dough; forming bagel shapes from the final dough; (d) fermenting the shapes for at least 30 minutes at around room temperature, and then further fermenting and storing the shapes for at least 10 hours under refrigeration at a temperature of from about +2° C. to about +8° C.; (f) boiling the shapes one side at a time or, in an initial baking step, baking the shapes in a steam environment; (g) baking, in a final baking step after the boiling or initial baking step, the formed bagel shapes; and, optionally, (h) freezing the baked bagel shapes.

It has been found that the combination of enzymes, in particular the combination of a thermophilic serine protease and a lipase, are able to improve the short bite in bakery products. Provided herein are compositions comprising these enzymes, the use of this combination of enzymes and methods for preparing bakery products using the combination of a thermophilic serine protease and a lipase.

It has been found that the combination of enzymes, in particular the combination of a thermophilic serine protease and a lipase, are able to improve the short bite in bakery products. Provided herein are compositions comprising these enzymes, the use of this combination of enzymes and methods for preparing bakery products using the combination of a thermophilic serine protease and a lipase.

The invention relates to methods of leavening a batter or dough of a bakery product comprising the steps of: providing a batter or dough comprising an isolated glutamate decarboxylase enzyme or an isolated aspartate decarboxylase enzyme and respectively glutamic acid or a salt thereof or aspartic acid or a salt thereof in a concentration of at least 0.005 mole glutamic acid/kg dough or batter, wherein the batter or dough does not contain added yeast or sourdough bacteria.

The present invention relates to a polypeptide having lipolytic enzyme activity, selected from the group consisting of: (a) a polypeptide having at least 65% sequence identity to amino acids 21 to 309 of SEQ ID NO: 1; (b) a polypeptide encoded by a polynucleotide that hybridizes under medium stringency conditions with the polypeptide coding sequence of SEQ ID NO: 2; (c) a polypeptide encoded by a polynucleotide having at least 65% sequence identity to the polypeptide coding sequence of SEQ ID NO: 2; and (d) a fragment of the polypeptide of (a), (b) or (c) that has lipolytic enzyme activity.

The present invention is directed to a method for manufacturing an enzyme preparation, comprising at least one recombinant Actinoallomurus endopeptidase with glutenase activity, at high yields and suitable for human use. The invention is further directed to a recombinant expression vector for expressing the recombinant endopeptidase(s) of interest, and to a S. lividans host cell comprising said vector. Moreover, the present invention is directed the enzyme preparation obtained by said method, to formulations of the same and to clinical uses thereof.

Preparation of a food product comprising a bakery portion and ingredients may include: a first step for preparing the ingredients, a second step for preparing dough, a third step for preparing dough pieces, a step for packaging, in which the dough pieces and the ingredients are assembled and disposed in an impermeable pouch which is vacuum sealed, a step for fermentation, a step for cooking, and a step for cooling.