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US 4,944,952 AGranted
Method for producing processed milk containing galactooligosaccharide
AssigneeKabushiki Kaisha Yakult Honsha
InventorsYoichi Kobayashi, Tatsuhiko Kan, Tsuneo Terashima
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Abstract
A method for producing a processed milk containing galactooligosaccharide. An animal milk is treated with a .beta.-galactosidase derived from Streptococcus thermophilus or Lactobacillus bulgaricus so as to change, at least 15% of the lactose contained in the animal milk, into galactooligosaccharide expressed by the following general formula: Gal-(Gal).sub.n Glc
Claims4
A method for producing a milk product containing galactooligosaccharide comprising:
- admixing an animal milk with a .beta.-galactosidase derived from Streptococcus thermophilus or lactobacillus bulgaricus at a temperature of 40.about.60.degree. C., a pH of about 6.about.8, and an enzyme concentration of 1.about.100 units/ml wherein the amount of glucose generated in the period of 1 hour from the commencement of enzyme treatment is not greater than 30 wt.% of lactose in said animal milk, so as to convert at least 15% of lactose contained in said animal milk into galactooligosaccharide expressed by the following general formula:
- Gal-(Gal).sub.n -Glc
- where, Gal represents galactose residue, Glc represents glucose residue and n represents an integer of 1 to 4.
Dependencies are inferred from the claim text.