산업식품공학 제21권 제3호 (p.280-285)

식품용 Hemicellulase 계열 효소를 이용한 국내산 감자 가공 부산물의 전분 추출 및 이화학적 특성

Extraction of Starch from Domestic Potato Sludge by Food-Grade Hemicellulase and its Physicochemical Properties
키워드 :
potato sludge,starch extraction,hemicellulase,starch

초록

The objective of this study was to increase the efficiency of starch extraction from potato sludge by different concentration of food-grade hemicellulase. The potato sludge, which is a by-product of potato processing industry, was treated with food-grade hemicellulase. Starch extraction efficiency displayed no significant difference in hemicellulase concentration. The purities of potato starch increased from 83.40 to 95.91, 97.44, 95.58, and 97.79%, with treated 0.5, 0.75, 1.0, and 1.5% hemicellulase, respectively. The physicochemical properties of the starches, such as granule structure, particle size, pasting, and thermal transition, were not affected by the concentration of hemicellulase. These results indicate that food-grade hemicellulase treatment is an efficient method for starch extraction from potato sludge.