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KMID : 1134820060350091251
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Journal of the Korean Society of Food Science and Nutrition
2006 Volume.35 No. 9 p.1251 ~ p.1255
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Effect of Water Resistance and Physical Properties of Soy Protein Isolate-coated Liner Board
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Ha Sang-Hyung
Park Cheon-Seok
Kim Byung-Yong
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Abstract
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To improve the water-resistance and physical properties of soy protein isolate (SPI)-coated paper, effects of concentrations of soy protein isolate and plasticizer were examined. Physical properties such as elongation strength (ES), elongation rate (E), water vapor permeability (WVP), and water solubility (WS) were evaluated. The film made from 5% soy protein isolate (SPI) and 40% glycerol (plasticizer) suggested a good application for a film preparation. SPI coated paper showed the highest ES (21.62 ㎫) and the lowest WVP (2.06 ngㆍm/㎡ㆍsㆍ㎩) and WS (1.17%). This study suggested that soy protein isolate (SPI) can be used as a coating material for the coated paper to improve the water-resistance.
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KEYWORD
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soy protein isolate, film, coating, liner board
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