Development of an Efficient Phytin Production Process from Light Steep Water by Yeast Fermentation
2012
Park, E.H., Kangwon National University, Chuncheon, Republic of Korea | Lee, J.S., Kangwon National University, Chuncheon, Republic of Korea | Park, S.J., AZI Co., Ltd., Chuncheon, Republic of Korea | Lee, Y.J., Chuncheon Bioindustry Foundation, Chuncheon, Republic of Korea | Kim, M.D., Kangwon National University, Chuncheon, Republic of Korea
A simple method for improving the phytin production process by yeast fermentation of light steep water (LSW) of corn was developed in this study. The initial acidity of LSW was pH 4 because it contained 3% (w/v) lactic acid, and the pH increased to 7.5 after 33 h of yeast fermentation to produce phytin at a final concentration of 1.0% (w/v) without addition of Ca(OH)₂. The phytin produced by yeast fermentation showed 12.3% (w/w) protein content, which corresponds to 28.9% of that obtained by neutralization of LSW. The settling rate of phytin produced by the yeast fermentation was 1.6 times faster than that with the neutralization method.
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