摘要:
The present invention discloses a method for producing foods and/or beverage having improved taste and/or flavour, comprising reacting a microbial aminopeptidase on a protein material optionally under the co-existence of a protease, wherein said aminopeptidase has the properties of: (a) having an activity of catalyzing the reaction of specifically releasing a glutamic acid and an aspartic acid from the N-terminal of a peptide and/or a protein; (b) having 50% or more activity at pH6.0-9.0 as compared with the activity at the optimum pH; (c) having 40% or more activity after heating at 25-60° C., pH7.5 for 30 minutes as compared with the activity of the non-heated enzyme; (d) having a molecular weight of about 40-60 kD as measured by SDS-PAGE and about 300-480 kD as measured by native-PAGE; (e) having a hydrolyzing activity of the aminopeptidase toward Glu-Glu dipeptide is 5 U/mg or more, preferably 10 U/mg or more.
摘要:
The present invention discloses a method for producing foods and/or beverage having improved taste and/or flavour, comprising reacting a microbial aminopeptidase on a protein material optionally under the co-existence of a protease, wherein said aminopeptidase has the properties of: (a) having an activity of catalyzing the reaction of specifically releasing a glutamic acid and an aspartic acid from the N-terminal of a peptide and/or a protein; (b) having 50% or more activity at pH6.0-9.0 as compared with the activity at the optimum pH; (c) having 40% or more activity after heating at 25-60° C., pH7.5 for 30 minutes as compared with the activity of the non-heated enzyme; (d) having a molecular weight of about 40-60 kD as measured by SDS-PAGE and about 300-480 kD as measured by native-PAGE; (e) having a hydrolyzing activity of the aminopeptidase toward Glu-Glu dipeptide is 5 U/mg or more, preferably 10 U/mg or more.
摘要:
It is an objective of the present invention to provide a soothing agent and a food for treating fatigue whereby: physical strength can be quickly restored from exhaustion (a state with lowered spontaneous motility), such as after exercise or exhausting labor or upon awakening in the early morning; physical strength decline can be prevented; and physical strength can be maintained.In accordance with the present invention, a soothing agent and/or a revitalizing agent containing protein hydrolysates obtained by degrading substrate protein via germinated soybean cotyledon-derived thiol protease and/or microorganism-derived serine protease are provided.
摘要:
Disclosed is an agent, γ-glutamylcysteine, which can effectively and safely stimulate the intestinal immune system. γ-Glutamylcysteine can be formulated in a pharmaceutical composition, a food, and/or a beverage, and used for the treatment or prevention of infectious diseases, diarrhea, polyps, tumors, enteritis or allergy.
摘要:
It is an objective of the present invention to provide a soothing agent and a food for treating fatigue whereby: physical strength can be quickly restored from exhaustion (a state with lowered spontaneous motility), such as after exercise or exhausting labor or upon awakening in the early morning; physical strength decline can be prevented; and physical strength can be maintained.In accordance with the present invention, a soothing agent and/or a revitalizing agent containing protein hydrolysates obtained by degrading substrate protein via germinated soybean cotyledon-derived thiol protease and/or microorganism-derived serine protease are provided.
摘要:
A method for producing a protein hydrolysate with low bitterness by contacting a protein with a protease having a low specificity to cleave a site of a hydrophobic amino acid residue in the protein.
摘要:
A method of improving the quality of a starch-containing food and a method of suppressing the retrogradation of a starch-containing food by adding an enzyme having a glycosyl transfer activity, whereby an α-1,4 bond is converted into an α-1,6 bond, to the starch-containing food; and a quality improving agent for a starch-containing food which contains the enzyme.
摘要:
A method of improving the quality of a starch-containing food and a method of suppressing the retrogradation of a starch-containing food by adding an enzyme having a glycosyl transfer activity, whereby an α-1,4 bond is converted into an α-1,6 bond, to the starch-containing food; and a quality improving agent for a starch-containing food which contains the enzyme.
摘要:
Disclosed are cDNA encoding a new aminopeptidase derived from germinated soybeans, a recombinant expression vector containing the DNA, a transformant obtained by the transformation with the expression vector, and a method of producing an aminopeptidase by culturing the transformed product. According to the present invention, a cDNA can be obtained encoding the amino acid sequence of aminopeptidase GX suitable for producing a highly hydrolized product from a starting material containing a protein and peptide having a high acidic amino acid content. Using the cDNA, a recombinant aminopeptidase can be mass-produced with E. coli or the like. By using the cDNA, it is also possible to produce aminopeptidase GX by using a host other than E. coli. In addition, hydrohized products having high glutamic acid content and aspartic acid content and also excellent seasoning properties can be obtained from soybean protein by combining GX thus produced with protease D3 and leucine aminopeptidase DLAP.
摘要:
A processed fiber product having excellent strength, water-absorbability and washing durability can be produced by attaching a partially hydrolyzed product of a wheat protein to a fiber and then allowing a transglutaminase to act on the fiber.