NEW ALGINIC ACID DECOMPOSING ENZYME, ITS PRODUCTION AND POLYMANNURONIC ACID USING THE SAME

Title:

NEW ALGINIC ACID DECOMPOSING ENZYME, ITS PRODUCTION AND POLYMANNURONIC ACID USING THE SAME

Document Type and Number:

Japanese Patent JPH06217774

Kind Code:

A

Abstract:

PURPOSE: To obtain new enzymes capable of decomposing alginic acid.

CONSTITUTION: Three kinds of these enzymes are the following enzymes: (1) The enzyme cuts polyG and polyMg parts in alginic acid molecule, but does not cut polyM part and optimum pH of the reaction is in the range of 7.5-8.0 and the enzyme is stable at pH5-9. (2) The enzyme cuts every parts of polyG, polyMG and polyM parts and optimum pH of the reaction is 6.5 and the enzyme is stable at pH5-9. (3) The enzyme cuts polyG and polyMG parts, but does not cut polyM part and optimum pH of the reaction is 8.0 and the enzyme is stable at pH4-9. This invention further includes a method for purifying these enzyme and production of polymannuronic acid from alginic acid using these enzymes.

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Inventors:

TAKEUCHI TOSHIO
KUSAKABE ISAO
MURATA KATSUMI

Application Number:

JP3688993A

Publication Date:

August 09, 1994

Filing Date:

February 25, 1993

Export Citation:

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Assignee:

KIBUN FOOD CHEMIFA
KIBUN SHOKUHIN KK

International Classes:

C12N9/88; C12P19/14; C12R1/20; (IPC1-7): C12N9/88; C12P19/14

Attorney, Agent or Firm:

Kyozo Yuasa (6 people outside)

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