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KMID : 0903519870300020133
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1987 Volume.30 No. 2 p.133 ~ p.140
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Physicochemical Properties of Several Potato Starches
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석호문/Seog, Ho Moon
남영중/민병용/박용곤/Nam, Young Jung/Min, Byong Yong/Park, Yong Kon
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Abstract
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The physicochemical properties and characteristics of potato starches which were isolated from the sip varieties were investigated. The ash content of starch prepared from the Arkula showed lower than that of the other five samples. The shapes of starch granules were oval and round, and the average diameters were in the range of 25∼26.9 microns. The main constituents of the inorganic components of each starch sample were found to be phosphorus and potassium. The amylose contents of starches were between 27.2∼32%, and blue value, alkali numbers were: in the range of 0.42∼0.45 and 5.8∼7.7, respectively. Amylegraph data resealed that Kook Sack had the highest viscosity at all reference points. The swelling power and solubility patterns were negligible until 50℃, thereafter it increased rapidly.
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