Abstract: There are provided a method of identifying the longum species alone, such as Bifidobacterium longum subsp. longum alone, and measuring the viable cell count thereof, amongst the bacterial cells to be tested which include a microorganism belonging to the genus Bifidobacterium by using a culture medium that contains L-arabinose as a sole sugar source; and also a culture medium which is useful as a selective medium for the above measurement method and which is also easy to prepare.

Abstract: The present invention relates to bacteria of a genus Lactococcus having bacteriological properties of: (1) fermentability which curdles a 10% (W/W) reconstituted skim milk medium when cultivated at a temperature of 25° C. to 37° C. for 16 hours; (2) Bifidobacterium longum growth-promoting properties which lead to a viable count of Bifidobacterium longum of 5×108 CFU/g or more, when co-cultivated with Bifidobacterium longum in the 10% (W/W) reconstituted skim milk medium, until the pH thereof is 4.4 to 4.6; and (3) Bifidobacterium longum survivability-improving properties during storage, which lead to a survival rate of Bifidobacterium longum of 30% or more, after co-cultivation with Bifidobacterium longum in the 10% (W/W) reconstituted skim milk medium until the pH thereof is 4.4 to 4.6, rapid cooling, and two weeks storage at 10° C.

Abstract: There are provided a method of identifying a microorganism belonging to Bifidobacterium breve alone and measuring the viable cell count thereof, amongst the bacterial cells to be tested which include a microorganism belonging to the genus Bifidobacterium by using a culture medium that contains at least one sugar alcohol selected from sorbitol and mannitol as a sole sugar source; and also a culture medium which is useful as a selective medium to be used in the above measurement method and which is also easy to prepare.

Abstract: There are provided a method of identifying the longum species alone, such as Bifidobacterium longum subsp. longum alone, and measuring the viable cell count thereof, amongst the bacterial cells to be tested which include a microorganism belonging to the genus Bifidobacterium by using a culture medium that contains L-arabinose as a sole sugar source; and also a culture medium which is useful as a selective medium for the above measurement method and which is also easy to prepare.

Abstract: The present invention relates to bacteria of a genus Lactococcus having bacteriological properties of: (1) fermentability which curdles a 10% (W/W) reconstituted skim milk medium when cultivated at a temperature of 25° C. to 37° C. for 16 hours; (2) Bifidobacterium longum growth-promoting properties which lead to a viable count of Bifidobacterium longum of 5×108 CFU/g or more, when co-cultivated with Bifidobacterium longum in the 10% (W/W) reconstituted skim milk medium, until the pH thereof is 4.4 to 4.6; and (3) Bifidobacterium longum survivability-improving properties during storage, which lead to a survival rate of Bifidobacterium longum of 30% or more, after co-cultivation with Bifidobacterium longum in the 10% (W/W) reconstituted skim milk medium until the pH thereof is 4.4 to 4.6, rapid cooling, and two weeks storage at 10° C.

Abstract: 17It is intended to provide Bifidobacterium longum having the following bacteriological properties and microbial powders, foods and beverages containing this Bifidobacterium longum: (1) having such fermentation ability as to make a milk base medium to pH 4.6 or below; (2) showing a survival rate of 50% or more in the case of, after attaining pH 4.4 to 4.6 in a milk base medium, quenching and storing at 10° C. for two weeks; and (3) having such gastric juice tolerance as to yield a survival rate of 10% or more in the case of storing in artificial gastric juice (pH 3.0) at 37° C. for two hours.

Abstract: PCR primers for detecting Bifidobacterium infantis comprising: a pair of a first oligonucleotide having a sequence of 20 or more continuous nucleotides selected from a nucleotide sequence of SEQ ID NO: 1 and a second oligonucleotide having a nucleotide sequence of SEQ ID NO: 2 or a nucleotide sequence of SEQ ID NO: 2 in which 0 to 7 nucleotides has been deleted from its 5?-terminal side is used to perform PCR using a chromosomal DNA or 16S rRNA of test bacteria as a template, and whether an amplicon of Bifidobacterium infantis is present or not is determined.

Abstract: PCR primers for detecting Bifidobacterium infantis comprising: a pair of a first oligonucleotide having a sequence of 20 or more continuous nucleotides selected from a nucleotide sequence of SEQ ID NO: 1 and a second oligonucleotide having a nucleotide sequence of SEQ ID NO: 2 or a nucleotide sequence of SEQ ID NO: 2 in which 0 to 7 nucleotides has been deleted from its 5?-terminal side is used to perform PCR using a chromosomal DNA or 16S rRNA of test bacteria as a template, and whether an amplicon of Bifidobacterium infantis is present or not is determined.

Abstract: 17It is intended to provide Bifidobacterium longum having the following bacteriological properties and microbial powders, foods and beverages containing this Bifidobacterium longum: (1) having such fermentation ability as to make a milk base medium to pH 4.6 or below; (2) showing a survival rate of 50% or more in the case of, after attaining pH 4.4 to 4.6 in a milk base medium, quenching and storing at 10° C. for two weeks; and (3) having such gastric juice tolerance as to yield a survival rate of 10% or more in the case of storing in artificial gastric juice (pH 3.0) at 37° C. for two hours.

Abstract: A new polypeptide originating from royal jelly, having a specific amino acid sequence and heat stability.

Abstract: This invention relates to a new microorganism belonging to Streptococcus thermophilus having an oxygen uptake ability of at least 30 nano moles per milligram of dried cell of said microorganism per minute which is defined by the quantity of oxygen consumption as determined by Warburg's manometric method, and to a microbial composition which comprises as main ingredients viable cell mass of (a) said microorganism and (b) bifidobacteria.

Abstract: A culture containing a viable mass of Bifodobacteria and lactic acid bacteria is obtained by incubating separately or together microorganisms of the genus Bifidobacterium and Lactobacillus, and the species Streptococcus thermophilus in a medium containing milk as the main ingredient. The Streptococcus thermophilus is a strain having high oxygen uptake. When incubated separately, the microorganisms are mixed together after incubating. In the presence of the high oxygen uptake Streptococcus thermophilus, a high survival fraction of the Bifidobacteria is obtained when the culture is stored under aerobic conditions. The culture is useful in preparing food, medicine or feed.