Title:
FACTORS CAUSING EARLY FLOCCULATION OF YEAST, ANTIBODIES THERETO AND UTILIZATION OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/073391
Kind Code:
A1
Abstract:
It is intended to provide early flocculation factors contained in a brewing material, enzymatically digested products of these polysaccharides, antibodies thereto and use of the same. Early flocculation factors (factors causing early flocculation of yeast) contained in a brewing material (barley, malt, etc.) are purified and isolated. These early flocculation factors comprise polysaccharides each having a molecular weight of about 80,000 or less (estimated by referring dextran 40,000 as a standard polysaccharide in the gel filtration chromatography method), and at least containing a (→4Xyl1→) linkage xylose unit, a (→5Ara1→) linkage arabinose unit, a (→3Gal1→) linkage galactose unit, a (→6Gal1→) linkage galactose unit and a (→3,6Gal1→) linkage galactose unit. It is further intended to provide enzymatically digested products of these early flocculation factors, antibodies against these polysaccharides and method of using the same in brewing a fermented malt drink or the like.
Inventors:
OGAWA TOSHIYA (JP)
KOIZUMI HIDEKI (JP)
KOIZUMI HIDEKI (JP)
Application Number:
PCT/JP2005/001200
Publication Date:
August 11, 2005
Filing Date:
January 28, 2005
Export Citation:
Assignee:
KIRIN BREWERY (JP)
OGAWA TOSHIYA (JP)
KOIZUMI HIDEKI (JP)
OGAWA TOSHIYA (JP)
KOIZUMI HIDEKI (JP)
International Classes:
C07K16/14; C08B37/00; C12C1/00; C12C11/00; C12N15/09; C12P19/04; C12P21/08; C12Q1/02; G01N33/577; G01N33/14; (IPC1-7): C12P19/04; C07K16/14; C08B37/00; C12C11/00; C12N15/09; C12P21/08; C12Q1/02; G01N33/14; G01N33/577
Other References:
HERRERA V.E. ET AL: "Induction of premature yeast flocculation by a polysaccharide fraction isolated from malt husk", J.INST.BREW., vol. 97, no. 5, 1991, pages 359 - 366, XP002987192
SPEERS R.A. ET AL: "Biochemical aspects of yeast flocculation and its measurement", J.INST.BREW., vol. 98, no. 4, 1992, pages 293 - 300, XP002987193
STRATFORD M.: "Yeast flocculation: Restructuring the theories in line with recent research", CEREVISIA, vol. 21, no. 1, 1996, pages 38 - 45, XP002987791
SPEERS R.A. ET AL: "Biochemical aspects of yeast flocculation and its measurement", J.INST.BREW., vol. 98, no. 4, 1992, pages 293 - 300, XP002987193
STRATFORD M.: "Yeast flocculation: Restructuring the theories in line with recent research", CEREVISIA, vol. 21, no. 1, 1996, pages 38 - 45, XP002987791
Attorney, Agent or Firm:
Hirota, Masanori (8-5 Akasaka 2-chom, Minato-ku Tokyo 52, JP)
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