Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Free Sugars Content of Selected Korean Apple Cultivars

우리나라산 일부 사과 품종의 유리당 함량

  • Kim, Cheon-Hoe (Korea Health Supplement Institute) ;
  • Whang, Hea-Jeung (Department of Food Service Industry, Cheonan Yonam College) ;
  • Ku, Ja-Eel (Department of Food Science and Technology, Chung-Ang University) ;
  • Park, Ki-Whan (Department of Food Science and Technology, Chung-Ang University) ;
  • Yoon, Kwang-Ro (Department of Food Science and Technology, Chung-Ang University)
  • Published : 2006.02.01
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Abstract

Contents of free sugars and sorbitol and their distributional profiles in Tsugaru, Fuji, Jonathan (Hong-Ok), and New Jonagold (Sin-Heung) apple cultivars were evaluated. Average total sugar contents of Tsugaru, Fuji, Jonathan, and New Jonagold were 9.62, 11.79, 11.20, and 10.28%, respectively. HPLC results showed sucrose, glucose, fructose, and sorbitol contents of apples ranged 0.72-3.26, 1.81-3.16, 5.08-6.96, and 0.22-0.96%, respectively. Ratios of individual sugar and sorbitol to sum of fructose, glucose, sucrose, and sorbitol (TS+S) were estimated for all apples. Fructose/TS+S and glucose/TS+S ratios did not differ significantly among cultivars, whereas sucrose/TS+S and sorbitol/TS+S ratios varied. Fructose/glucose ratios were 2.295, 2.244, 2.161, and 2.393 for Tsugaru, Fuji, Jonathan, and New Jonagold, respectively.

우리나라 사과의 품종별 HPLC법으로 산출한 총당 함량은 쓰가루 평균 9.62%, 후지 11.79%, 홍옥 11.20% 그리고 신흥 11.59%이었다. 전국의 총당 함량분포는 최소 8.91%(대구 산 쓰가루)에서 최고 13.08%(수원 산 후지)이었다. 유리당과 sorbitol의 함량 분포는 전국적으로 sucrose 0.72-3.26%, glucose 1.81-3.54%, fructose 5.08-6.96% 그리고 sorbitol 0.22-0.96%이었다. 개별 유리당의 품종별 평균함량은 fructose는 쓰가루 5.76%, 후지 6.08%, 홍옥 5.76% 그리고 신흥 6.03%, glucose는 쓰가루 2.60%, 후지 2.74%, 홍옥 2.68% 그리고 신흥 2.53%, sucrose는 쓰가루가 0.94%로서 후지 2.33%, 홍옥 2.29% 그리고 신흥 2.53%, sorbitol은 쓰가루 0.31%, 후지 0.64%, 홍옥 0.45%, 신흥 0.44 이었다. 총당 중의 유리당과 sorbitol 분포비율은 네 가지 품종 모두 fructose가 50%이상의 점유율을 보이며 sorbitol은 5% 미만으로 유사한 패턴을 보이고 있지만 쓰가루는 fructose가 60%를 점유하고 sucrose는 약 10% 정도의 특이한 패턴을 보였다. 품종별 총당(TS+S)에 대한 유리당의 함량비율 sucrose/TS+S는 쓰가루 0.098, 후지 0.198, 홍옥 0.205 그리고 신흥 0.225, fructose/TS+S는 쓰가루 0.600, 후지 0.516, 홍옥 0.515 그리고 신흥 0.521, glucose/TS+S는 쓰가루 0.270, 후지 0.233, 홍옥 0.240 그리고 신흥 0.219이며 이 중 모든 품종의 fructose/TS+S와 glucose/TS+S는 안정적인 지표로 판단되었다. 품종별 총당에 대한 sorbitol의 함유비율(sorbitol/TS+S)은 쓰가루 0.032, 후지0.053, 홍옥 0.041, 신흥, 0.0370로서 품종간의 차이가 인정되었다. 품종 별 fructose와 glucose 함유비율(fructose/glucose)은 쓰가루 2.295, 후지2.244, 홍옥 2.161 그리고 신흥 2.393이었다.

Keywords

References

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