Journal of the East Asian Society of Dietary Life (동아시아식생활학회지)

The East Asian Society of Dietary Life (동아시아식생활학회)
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Physicochemical Properties and Antioxidant Activities of 'Seolhyang' and 'Janghee' Strawberries from Different Ripening Stages Grown in Korea

한국에서 재배한 설향 및 장희 딸기의 성숙도별 일반 품질 및 항산화능 분석

  • Lim, Sujin (Dept. of Environmental Horticulture, Dankook University) ;
  • Hwang, Hyesung (Dept. of Environmental Horticulture, Dankook University) ;
  • Shin, Youngjae (Dept. of Environmental Horticulture, Dankook University)
  • 임수진 (단국대학교 환경원예학과) ;
  • 황혜성 (단국대학교 환경원예학과) ;
  • 신영재 (단국대학교 환경원예학과)
  • Received : 2015.11.16
  • Accepted : 2016.01.30
  • Published : 2016.02.29
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Abstract

This study was conducted to investigate the physicochemical properties and antioxidant activities of strawberries from different cultivars and ripening stages grown in Korea. Fragaria ananassa 'Seolhyang' and 'Janghee' in unripe and ripe stages were used in this study. Overall, firmness of unripe fruits was harder than that of ripe fruits, whereas firmness of 'Seolhyang' was harder than that of 'Janghee'. There was no significant difference in soluble solid content (SSC) between the two cultivars, whereas SSC increased when fruits matured. Total phenolic and flavonoid concentrations of 'Seolhyang' were greater than those of 'Janghee' cultivar. However, there was no ripening effect on total phenolic concentration in both cultivars. Total anthocyanin concentrations of the two cultivars were higher in ripe stage while that of 'Janghee' was greater than that of 'Seolhyang' statistically. Total antioxidant activities of 'Seolhyang' were greater than those of 'Janghee'. Total phenolic and flavonoid concentrations were highly correlated with antioxidant activities but there was no correlation between total anthocyanins and total antioxidant activities.

본 연구는 '설향'과 '장희' 두 품종의 품종별, 성숙도별에 일반 성분분석과, 항산화 물질함량, 항산화능을 비교하였다. 미숙과가 완숙과보다 경도가 더 높았으며, '설향'이 '장희'보다 단단하였다. 당도에서는 품종별의 차이를 보이지 않았으나, 과일이 성숙이 되면서 당도는 증가하였다. 산도는 미숙과가 완숙과보다 높게 측정되었으며, 과일이 완숙이 되었을 때는 '설향'보다 '장희'의 적정 산도가 더 높게 측정되었다. 총 페놀화합물 함량과 플라보노이드 함량에서는 '설향'이 '장희' 품종보다 더 우수하게 나타냈으며, 총 페놀화합물 함량의 경우 미숙과와 완숙과와는 유의차가 없었다. 총 안토시아닌 함량은 두 품종 모두 성숙과가 많은 양을 나타내었고, '장희' 품종이 '설향'보다 더 높게 나타났다. 항산화능에서는 DPPH 라디칼 소거능과 ABTS 라디컬 소거능 모두 '설향'이 '장희' 품종보다 더 우수하게 나타났다. 안토시아닌을 제외한 항산화 물질함량과 총 항산화능과는 매우 높은 상관 관계를 나타내었다. 본 연구 결과를 종합해 볼 때, 딸기의 당산비 등을 고려했을 때 완숙과를 섭취하는 것이 관능적으로 우수할 것으로 판단되나, 품종에 따라서 미숙과의 항산화 물질 및 항산화능이 높은 경우도 있어서 이러한 미숙과나 재배 중 발생하는 적과, 태풍 등 자연 환경변화에 따른 낙과를 이용한 다양한 기능성 원료의 개발도 충분히 가치가 있다고 사료된다.

Keywords

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