DE915559C - Process for the production of rye starch - Google Patents

Process for the production of rye starch

Info

Publication number
DE915559C
DE915559C DEH3125D DEH0003125D DE915559C DE 915559 C DE915559 C DE 915559C DE H3125 D DEH3125 D DE H3125D DE H0003125 D DEH0003125 D DE H0003125D DE 915559 C DE915559 C DE 915559C
Authority
DE
Germany
Prior art keywords
starch
production
raw material
enzymes
acid
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
DEH3125D
Other languages
German (de)
Inventor
Josef Busch
Dr Hans Ritter
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.)
HOFFMANN STAERKEFABRIKEN AG
Original Assignee
HOFFMANN STAERKEFABRIKEN AG
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 HOFFMANN STAERKEFABRIKEN AG filed Critical HOFFMANN STAERKEFABRIKEN AG
Priority to DEH3125D priority Critical patent/DE915559C/en
Application granted granted Critical
Publication of DE915559C publication Critical patent/DE915559C/en
Expired legal-status Critical Current

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
    • C08B30/04—Extraction or purification
    • C08B30/042—Extraction or purification from cereals or grains

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

Verfahren zur Gewinnung von Roggenstärke Zur technischen und wirtschaftlichen Gewinnung der Roggenstärke ist vorgeschlagen worden, aus dem zerkleinerten Rohstoff die die Trennung des Klebers und des Futters von der Stärke durch Aufschließung im Sinne der Reisstärkegewinnung hindernden wasserlöslichen Schleimstoffe durch Auswaschen mit Wasser zu entfernen und dann den Kleber und das Futter von der Stärke durch alkalische Weiterbehandlung in bekannter Weise zu trennen.Process for the production of rye starch For technical and economic Extraction of the rye starch has been suggested from the crushed raw material the separation of the glue and the lining from the starch by digestion in the sense of the rice starch production hindering water-soluble mucilage Wash out with water to remove and then remove the glue and lining from the starch separated by further alkaline treatment in a known manner.

Die genaue analytische Durchführung dieses Verfahrens in seinen einzelnen Abschnitten hat gezeigt, daß die verhältnismäßig niedrigen Stärkeausbeuten vor allem enzymatischen, während der Fabrikation ablaufenden Vorgängen, insbesondere der Einwirkung von Diastase im Rohgut zuzuschreiben ist. The exact analytical implementation of this procedure in its individual Sections has shown that the relatively low starch yields mainly enzymatic processes occurring during manufacture, in particular exposure is attributable to diastase in the raw material.

Gemäß der Erfindung werden zunächst in dem Ausgangsstoff oder in der wäßrigen Suspension des zerkleinerten Rohstoffes die Enzyme, besonders die Diastase, zerstört, ohne dabei jedoch die Stärke und ihre sonstigen Begleitstoffe zu verändern. Dazu können alle Mittel dienen, die die Enzyme, insbesondere die Diastase zerstören, wie z. B. Temperaturen, Enzymgifte u. dgl. Ein praktisch besonders geeignetes Mittel wurde in der Vorbehandlung mit Säuren gefunden, die aber in einer solchen Konzentration angewendet werden müssen, daß einerseits das Enzym, also in erster Linie die Diastase, zer- stört wird, anderseits aber weder die Stärke noch die sonstigen Stärkebegleiter, wie z. B. Schleimstoffe oder der Kleber, ungünstig beeinflußt werden. According to the invention are initially in the starting material or in the aqueous suspension of the comminuted raw material, the enzymes, especially the diastase, destroyed, but without changing the starch and other accompanying substances. All means that destroy the enzymes, especially the diastase, can be used for this purpose, such as B. Temperatures, enzyme poisons and the like. A particularly suitable means in practice was found in the pretreatment with acids, but in such a concentration must be applied that on the one hand the enzyme, i.e. primarily the diastase, disintegrate is disturbed, but on the other hand neither the strength nor the others Strength companions, such as B. mucilage or the glue are adversely affected.

Gemäß der Erfindung erfolgt die Wasserbehandlung des Rohgutes zur Extraktion der wasserlöslichen Anteile (sog. Schleimstoffe) vor der alkalischen Stärkegewinnung bei Gegenwart von Säuren, wobei jede zur Abtötung des Enzyms geeignete Säure technisch brauchbar ist. Aus wirtschaftlichen Gründen kommen für diese Zwecke in erster Linie die Mineralsäuren in Frage, und zwar insbesondere Salzsäure und Schwefelsäure. Was dienötigeSäurekonzentration anlangt, so wurde die Beobachtung bestätigt gefunden, nach der sich bei geringer Säurekonzentration die schon vor dem Säurezusatz nicht unerhebliche Diastasewirkung noch weiter erhöht. According to the invention, the water treatment of the raw material takes place Extraction of the water-soluble components (so-called mucilage) before the alkaline one Production of starch in the presence of acids, each suitable for killing the enzyme Acid is technically useful. For economic reasons come for these purposes primarily the mineral acids in question, in particular hydrochloric acid and Sulfuric acid. As for the acid concentration required, the observation became confirmed found, according to which, with a low acid concentration, the already before the addition of acid, which is not insignificant, increases the diastase effect even further.

Das Optimum des Stärkeabbaus durchDiastase liegt für wäßrige Stärkesuspension bei PH 5 Von etwa PH2,8 abwärts trat ein rapider Rückgang in der Diastasewirkung ein, und es wurden unter Berücksichtigung des Ausmahlungsgrades Ausbeuten erhalten, die z. B. denen der Reisstärkegewinnung nach dem üblichen alkalischen Verfahren entsprachen und ebenso eine normale Gewinnung der Nebenbestandteile nach dem Hauptpatent ermöglichten.The optimum of starch degradation by diastasis is for aqueous starch suspension at PH 5 From about PH2.8 downwards there was a rapid decrease in the effect of diastasis one, and yields were obtained taking into account the degree of grinding, the z. B. those of rice starch production by the usual alkaline process and also a normal extraction of the secondary components according to the main patent made possible.

Claims (1)

PATENTANSPRUCH Verfahren zur Gewinnung von Roggenstärke unter alkalischem Aufschluß des Rohmaterials, dadurch gekennzeichnet, daß das zerkleinerte Rohgut oder eine Aufschwemmung davon in Wasser zunächst zur Tötung der Enzyme mit einer verdünnten Säure behandelt wird, deren Konzentration zur Abtötung der Enzyme ausreicht, und zwar mit einer Säurekonzentration der wäßrigen Aufschwemmung von etwa pn 2,8 und darunter, bevor die Schleimstofflösung abgetrennt und die alkalische Behandlung zwecks Stärkegewinnung durchgeführt wird. PATENT CLAIM Process for the production of rye starch under alkaline conditions Digestion of the raw material, characterized in that the comminuted raw material or a suspension of it in water first to kill the enzymes with a diluted acid is treated, the concentration of which is sufficient to kill the enzymes, with an acid concentration of the aqueous suspension of about pn 2.8 and below, before the mucilage solution separated and the alkaline treatment is carried out for the purpose of gaining starch.
DEH3125D 1942-07-26 1942-07-26 Process for the production of rye starch Expired DE915559C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH3125D DE915559C (en) 1942-07-26 1942-07-26 Process for the production of rye starch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH3125D DE915559C (en) 1942-07-26 1942-07-26 Process for the production of rye starch

Publications (1)

Publication Number Publication Date
DE915559C true DE915559C (en) 1954-07-22

Family

ID=7143435

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH3125D Expired DE915559C (en) 1942-07-26 1942-07-26 Process for the production of rye starch

Country Status (1)

Country Link
DE (1) DE915559C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080040B (en) * 1959-02-09 1960-04-14 Ogilvie Flour Mills Co Ltd Process for cleaning raw starches, especially wheat starches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080040B (en) * 1959-02-09 1960-04-14 Ogilvie Flour Mills Co Ltd Process for cleaning raw starches, especially wheat starches

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