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KMID : 1024420120160030278
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Food Engineering Progress
2012 Volume.16 No. 3 p.278 ~ p.282
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Development of an Efficient Phytin Production Process from Light Steep Water by Yeast Fermentation
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Park Eun-Hee
Lee Jong-Sub
Park Sang-Jae
Lee Yong-Jin
Kim Myung-Dong
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Abstract
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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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KEYWORD
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phytate, phytin, light steep water, lactic acid, yeast fermentation
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