Optimum Conditions for Combined Application of Leuconostoc sp and Saccharomyces sp to Sourdough

Title
Optimum Conditions for Combined Application of Leuconostoc sp and Saccharomyces sp to Sourdough
Author(s)
한기동정현채[정현채]정보영[정보영]
Keywords
LACTIC-ACID BACTERIA; FERMENTATION; YEASTS; OPTIMIZATION; SUBSTANCE
Issue Date
201111
Publisher
KOREAN SOCIETY FOOD SCIENCE & TECHNOLOGY-KOSFOST
Citation
FOOD SCIENCE AND BIOTECHNOLOGY, v.20, no.5, pp.1373 - 1379
Abstract
Investigation of the optimum conditions for the combined application of Saccharomyces sp. (yeast) and Leuconostoc sp. (lactic acid bacteria, LAB) isolated in a previous study to the development of novel sourdough was carried out by response surface analysis. First, the cell growth conditions were analyzed. LAB showed good proliferation under conditions of 30-35 degrees C, low pH, and high acidity, whereas the growth of yeast was inhibited. The growth of yeast was optimum at 25 degrees C for 24 h. Based on these results, analysis of sourdough was carried out by varying the LAB population, temperature, and time after fixing the number of yeast. It was determined by response surface analysis that the optimal conditions for fermentation are LAB population of 10(5) CFU/mL, temperature of 25 degrees C, and reaction time of 24 h. From these results, the growth of LAB should be constantly maintained, and an appropriate pH that does not inhibit the growth of yeast due to the presence of generated organic acid is required to allow for the unique properties of sourdough. This study could give useful information for the development of novel sourdough.
URI
http://hdl.handle.net/YU.REPOSITORY/24277http://dx.doi.org/10.1007/s10068-011-0189-0
ISSN
1226-7708
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자연자원대학 > 식품공학과 > Articles
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