Title:
NEW YEAST AND PRODUCTION OF BREADS BY UTILIZING THE SAME YEAST
Document Type and Number:
Japanese Patent JP3118164
Kind Code:
B2
Abstract:
PURPOSE: To obtain a new yeast, hating the abilities to resist the freezing and suppress low-temperature fermentation, useful as a dough, etc., for producing breads freezable or preservable by refrigeration and capable of saving the labor in baking, rationalizing the baking and diversifying the kind of bread products.
CONSTITUTION: A yeast strain, having the freezing resistance and providing a parent strain is inoculated from a slant of the yeast strain into a culture medium by one platinum loop, cultured at 30°C for 24hr by shaking culture and then centrifuged to collect the fungal cell, which is washed with a 0.1M phosphoric acid buffer solution (pH7.0). The yeast fungal cell is then suspended in the same phosphoric acid buffer solution and ethyl methansulfonate as a mutation inducer is added thereto. The mutation treatment is carried out at 30°C for 60min and the resultant suspension is centrifuged to collect the fungal cell, which is then washed and smeared on an agar plate. A colony in which the growth is more suppressed than that of the parent strain is selected as a low-temperature sensitive yeast at 10°C to afford five species of new yeasts of P-626 (FERM P-14962) to P-630 (FERM P-14966) of Saccharomyces cerevisiae strains having the abilities to resist the freezing and suppress the low-temperature fermentation and further stabilized proofing fermentation times.
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Inventors:
Masayasu Ando
Ryoichi Nakajima
Kazuhiro Hamada
Ryoichi Nakajima
Kazuhiro Hamada
Application Number:
JP16710195A
Publication Date:
December 18, 2000
Filing Date:
June 09, 1995
Export Citation:
Assignee:
Oriental Yeast Industry Co., Ltd.
International Classes:
A21D6/00; A21D8/04; C12N1/18; C12R1/865; (IPC1-7): C12N1/18; A21D6/00; A21D8/04
Domestic Patent References:
| JP779767A | ||||
| JP6245687A | ||||
| JP7500006A |