FR2086752A5 - Enzymatic isomerisation of glucosesyrups in the presence of - Google Patents

Enzymatic isomerisation of glucosesyrups in the presence of

Info

Publication number
FR2086752A5
FR2086752A5 FR7012656A FR7012656A FR2086752A5 FR 2086752 A5 FR2086752 A5 FR 2086752A5 FR 7012656 A FR7012656 A FR 7012656A FR 7012656 A FR7012656 A FR 7012656A FR 2086752 A5 FR2086752 A5 FR 2086752A5
Authority
FR
France
Prior art keywords
enzyme
pref
isomerisation
glucose
liquid
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7012656A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Standard Brands Inc
Original Assignee
Standard Brands Inc
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 by Standard Brands Inc filed Critical Standard Brands Inc
Priority to FR7012656A priority Critical patent/FR2086752A5/en
Application granted granted Critical
Publication of FR2086752A5 publication Critical patent/FR2086752A5/en
Expired legal-status Critical Current

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Classifications

    • 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
    • C12P19/24—Preparation of compounds containing saccharide radicals produced by the action of an isomerase, e.g. fructose

Abstract

A glucose-isomerising enzyme is added to a glucose-contg. liquid and the liquid is subjected to isomerisation conditions. During isomerisation a small amount of a water-soluble salt of sulphurous acid is present in a quantity which is sufficient to reduce visibly the formation of colour produced in the absence of salt. The quantity of salt is pref. sufficient to produce 0.02-0.3% SO2 in the liquid. Pref. salt is Mg sulphite or -bisulphite. The pref. micro-organisms used to produce the enzyme are Streptomyces ATCC 21175 and 21176. Pref. pH of the liquid during isomerisation is 6.5-7.5. Cell material containing the enzyme is used for isomerisation. This contains foreign matter which produces discolouration of the final product. The salts included reduce the colour and have a protecting effect on the glucose-isomerising enzyme, esp. at higher temps. so that smaller quantities of enzyme are necessary to give the same yield of fructose. The isomerised glucose syrup is used for the sweetening of sauces, tinned fruits, confectionery etc.
FR7012656A 1970-04-08 1970-04-08 Enzymatic isomerisation of glucosesyrups in the presence of Expired FR2086752A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7012656A FR2086752A5 (en) 1970-04-08 1970-04-08 Enzymatic isomerisation of glucosesyrups in the presence of

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7012656A FR2086752A5 (en) 1970-04-08 1970-04-08 Enzymatic isomerisation of glucosesyrups in the presence of

Publications (1)

Publication Number Publication Date
FR2086752A5 true FR2086752A5 (en) 1971-12-31

Family

ID=9053612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7012656A Expired FR2086752A5 (en) 1970-04-08 1970-04-08 Enzymatic isomerisation of glucosesyrups in the presence of

Country Status (1)

Country Link
FR (1) FR2086752A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2529572A1 (en) * 1982-06-30 1984-01-06 Nabisco Brands Inc PROCESS FOR THE ENZYMATIC CONVERSION OF GLUCOSE TO FRUCTOSE
FR2529571A1 (en) * 1982-06-30 1984-01-06 Nabisco Brands Inc PROCESS FOR ISOMERIZING GLUCOSE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2529572A1 (en) * 1982-06-30 1984-01-06 Nabisco Brands Inc PROCESS FOR THE ENZYMATIC CONVERSION OF GLUCOSE TO FRUCTOSE
FR2529571A1 (en) * 1982-06-30 1984-01-06 Nabisco Brands Inc PROCESS FOR ISOMERIZING GLUCOSE

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