摘要:
The formation of acrylamide during heat treatment in the production of a food product is reduced by treating the raw material with an enzyme before the heat treatment. The enzyme is capable of reacting on asparagine or glutamine (optionally substituted) as a substrate or is a laccase or a peroxidase.
摘要:
The formation of acrylamide during heat treatment in the production of a food product is reduced by treating the raw material with an enzyme before the heat treatment. The enzyme is capable of reacting on asparagine or glutamine (optionally substituted) as a substrate or is a laccase or a peroxidase.
摘要:
The formation of acrylamide during heat treatment in the production of a food product is reduced by treating the raw material with an enzyme before the heat treatment. The enzyme is capable of reacting on asparagine or glutamine (optionally substituted) as a substrate or is a laccase or a peroxidase.
摘要:
The formation of acrylamide during heat treatment in the production of a food product is reduced by treating the raw material with an enzyme before the heat treatment. The enzyme is capable of reacting on asparagine or glutamine (optionally substituted) as a substrate or is a laccase or a peroxidase.
摘要:
An enzyme exhibiting pectin methyl esterase activity, wherein the enzyme a) is derived from Aspergillus aculeatus; b) is encoded by Seq ID No:1; or c) has the amino acid sequence of Seq ID No:2 or a sequence which is at least 95% homologous thereto. An enzyme can be used for the modification of plant cell wall components.
摘要:
A method for causing gelling or increase of viscosity of an aqueous medium containing a gellable polymeric material having substituents with phenolic hydroxy groups comprises adding an oxidase, particularly a laccase, to the aqueous medium.
摘要:
A process for increasing the viscosity or gel strength of certain food products is disclosed. By the process a pectinaceous homogenate or slurry is subjected to: a) a treatment with a mixture of enzymes, comprising one or more among galactanases, arabinanases, .alpha.-arabinofuranosidases, rhamnogalacturonan acetyl esterases (RGAE), endoglucanases, mannanases, xylanases, and proteolytic enzymes; b) a treatnent with a pectinesterase (PE), which PE is essentially free from pectic depolymerizing enzymes; followed by c) an enzyme inactivating treatment; said process being performed in the presence of divalent metal ions, especially Ca.sup.2+, said ions being inherently present in said homogenate or slurry, or said ions being added at any time prior to, during or after the process steps (a) to (c). The final product may be a jam, marmalade, jelly, juice, paste, soup, dressing, sauce, condiment, ketchup, salsa, chutney, pudding, mousse, or other dessert.
摘要:
A method for causing gelling or increase of viscosity of an aqueous medium containing a gellable polymeric material which has functionalities with phenolic hydroxy groups, and which, in aqueous medium, is susceptible to viscosity increase or gelling in the presence of a carboxylic ester hydrolase, comprises treating the aqueous medium with: a carboxylic ester hydrolase (EC 3.1.1); and an oxidase (EC 1.10.3) and/or a peroxidase (EC 1.11.1); in the presence of an oxidizing agent suitable for use with the oxidase and/or peroxidase. Gelled products obtainable by the method may be dried or dehydrated to give products which are useful as absorbents for absorbing aqueous media, such as body fluids. In particular, gelling a pectic material obtainable from sugar beets using pectinesterase (EC 3.1.1.11) and laccase (EC 1.10.3.2).
摘要:
The substrate specificity of a lipolytic enzyme can be modified by making alterations to the amino acid sequence in a defined region of the lipolytic enzyme, so as to increase the level of a desired activity or to decrease the level of an undesired activity. Thus, the inventors have developed lipolytic enzyme variants with a modified amino acid sequence with a substrate specificity which can be tailored for specific uses.