감자 품종별 일반성분, 유리당, 유기산, 유리아미노산을 분석하였고 물결합력 및 oil 흡수력, 색도를 측정한 결과 감자 품종에 따라 영양성분 함량 및 이화학적 특성의 차이를 보였다. 조단백질 함량은 서홍이 높았고 조회분은 추강이 높았다. 감자의 유리당 함량은 sucrose, glucose, fructose 순으로 함유되어 있었으며 주 유기산으로는 oxalic acid, citricacid, malic acid, succinic acid, fumaric acid이었다. 감자 23품종의 필수, 비필수 아미노산 함량은 각각 60.33-550.91 μmol/100 g, 30.44-1,0998.58 μmol/100 g 범위였다. 감자 품종 중 대지가 물 결합력이, 자심이 oil흡수력이 높았고 특히 칩 가공용인 대서와 가원과 비슷하거나 낮은 oil흡수력 을 보인 추백, 조풍, 하령, 신남작도 지방함량을 줄일 수 있는 가공제품에 적합할 것으로 판단된다.
This study was conducted to investigate the nutrient components and physicochemical properties of 23 Korean potato cultivars. Proximate composition, free sugars, organic acids, and free amino acids were analyzed, and water binding capacity, oil absorption, and Hunter color values were measured in this study. The content of crude protein was the highest in Seohong and the lowest in Jayoung cultivars. Crude ash content of Chugang was higher than that of other cultivars. Sucrose content was the highest among the free sugars, followed by glucose, and then fructose. The major organic acids in all potato cultivars were oxalic acid, citric acid, malic acid, succinic acid, and fumaric acid. The essential amino acid and non-essential amino acid contents in the 23 potato cultivars ranged from 60.33 to 550.91 μmol/100g and 300.44 to 1,098.58 μmol/100 g, respectively. The water binding capacity of Deiima and the oil absorption of Jasim cultivars were the highest values among the tested potato cultivars. The oil absorption of Gawon and Shinnamjak was greater than those of the other cultivars. From the results, Gawon and Shinnamjak cultivars could be suggested as beneficial for controlling fat intake.