The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Comparative Biological Properties of Prunus davidiana Fruits according to Harvest Month

산복사나무 열매의 수확시기별 생리활성물질 함량 비교

  • Oh, Kyoung-Joo (The Graduate School of Alternative Medicine Kyonggi University) ;
  • Kim, Min-Jeong (The Graduate School of Alternative Medicine Kyonggi University) ;
  • Han, Jung-Soon (Dokhaksa College in Lifelong Center of Seoul National University of Education) ;
  • Ji, Eun-Hee (College of Pharmacy, Gachon University) ;
  • Kim, Ae-Jung (The Graduate School of Alternative Medicine Kyonggi University)
  • 오경주 (경기대학교 대체의학대학원) ;
  • 김민정 (경기대학교 대체의학대학원) ;
  • 한정순 (서울교육대학교 평생교육원 독학사칼리지) ;
  • 지은희 (가천대학교 약학대학) ;
  • 김애정 (경기대학교 대체의학대학원)
  • Received : 2015.07.03
  • Accepted : 2015.08.17
  • Published : 2015.08.31
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Abstract

This study was performed to determine the optimal month of harvest between May and July for wild peach (Prunus davidiana) by comparison of functional materials. The general composition, amino acid and vitamin (A, C, and E) content, and antioxidant activity were determined. With respect to the general composition of wild peach according to the month of harvest, wild peach harvested in May (HMP) and July (HJP) contained mostly carbohydrate, the contents of which amounted to 77.37 g/100 g and 77.92 g/100 g, respectively. The total amino acid content of HMP and HJP were 675.29 mg% and 573.25 mg%, respectively. Regarding the vitamin contents, vitamin A (retinol), E (${\alpha}-tocopherol$) and C in HMP were higher than those in HJP. The total polyphenol content of HMP (218.37 mg TAE/g) was higher than that of HJP (71.45 mg TAE/g). The total flavonoid content of HMP (64.95 mg RE/g) was also higher than that of HJP (32.67 mg RE/g). Moreover, the DPPH and ABTS radical scavenging activities ($IC_{50}$) were higher in HMP ($137.18{\mu}g/mL$ and $157.15{\mu}g/mL$) than those in HJP ($160.10 {\mu}g/mL$ and $186.01 {\mu}g/mL$), meaning that the former produces better antioxidant effects. It can be concluded that wild peach harvested in May contained higher functional materials such as vitamins and amino acids and had a higher antioxidant effect, than wild peach harvested in july.

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