BE813518A - Granular starch enzymatic solubilisation - with alpha-amylase in aq slurry and conversion to dextrose - Google Patents

Granular starch enzymatic solubilisation - with alpha-amylase in aq slurry and conversion to dextrose

Info

Publication number
BE813518A
BE813518A BE2053546A BE2053546A BE813518A BE 813518 A BE813518 A BE 813518A BE 2053546 A BE2053546 A BE 2053546A BE 2053546 A BE2053546 A BE 2053546A BE 813518 A BE813518 A BE 813518A
Authority
BE
Belgium
Prior art keywords
starch
amylase
gelatinising
pref
temp
Prior art date
Application number
BE2053546A
Other languages
French (fr)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BE813518A publication Critical patent/BE813518A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
    • C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00—Preparation of compounds containing saccharide radicals
    • C12P19/14—Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00—Preparation of compounds containing saccharide radicals
    • C12P19/20—Preparation of compounds containing saccharide radicals produced by the action of an exo-1,4 alpha-glucosidase, e.g. dextrose
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K1/00—Glucose; Glucose-containing syrups
    • C13K1/06—Glucose; Glucose-containing syrups obtained by saccharification of starch or raw materials containing starch

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Genetics & Genomics (AREA)
  • Emergency Medicine (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Granular starch is converted to a soluble hyrolysate by stirring a mixt. contg. 5-40 (10-30)% granular, esp. maize starch, water, bacterial alpha-amylase and opt. glucoamylase, at a temp. between normal initial gelatinising temp. and actual gelatinising temp. of starch at pH 4-7 (5-7). Dextrose is pref. predpd. by (i) starch solubilisation to > 10%, pref. at >=40 (65-75) degrees C, (2) setting temp. to 50-65 degrees C and Ph 4-6 and saccharifying hydrolysate with a saccharifying enzyme, pref. glucoamylase or beta-amylase. Process pref. takes 3 steps: (a) solubilising, without gelatinising, to >=10% starch conversion, (b) heating above starch gelatinising temps., esp. to 85-150 degrees C, to gelatinise residual starch and (c) saccharifying.
BE2053546A 1973-04-10 1974-04-10 Granular starch enzymatic solubilisation - with alpha-amylase in aq slurry and conversion to dextrose BE813518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34989973A 1973-04-10 1973-04-10

Publications (1)

Publication Number Publication Date
BE813518A true BE813518A (en) 1974-10-10

Family

ID=23374441

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2053546A BE813518A (en) 1973-04-10 1974-04-10 Granular starch enzymatic solubilisation - with alpha-amylase in aq slurry and conversion to dextrose

Country Status (3)

Country Link
BE (1) BE813518A (en)
TR (1) TR18169A (en)
ZA (1) ZA742102B (en)

Also Published As

Publication number Publication date
TR18169A (en) 1976-11-01
ZA742102B (en) 1975-04-30

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