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논문 상세정보

냉동저장 및 추출방법에 의한 딸기의 생리활성 변화

Change of Biological Activity of Strawberry by Frozen Storage and Extraction Method

초록

딸기의 가공방안을 높이고, 안정된 수급과 식품소재로 활용하기 위해 냉동저장과 추출방법에 따른 생리활성 변화를 조사하였다. 냉동저장기간(3, 6개월)에 따른 딸기의 총 phenol 함량은 딸기즙이 $2.342{\mu}g/ml$. 열수추출물은 $2.235{\mu}g/ml$로 나타났다. 반면, 총 flavonoid성 함량은 딸기즙은 $200.36{\mu}g/ml$로 나타났고, 열수추출물은 $201.07{\mu}g/ml$로 나타났고, 냉동저장기간 동안 총 phenol 함량과 총 flavonoid성 함량은 비교적 차이가 없었다. 딸기의 항산화 효과는 전자공여능이 딸기즙과 열수추출물이 각각 94.2%, 93.5%로 나타났고, ABTS는 각각 99.9%, 100%로 높게 나타났다. Xanthine oxidase의 저해활성의 경우 딸기즙이 93.0%, 열수 추출물은 99.9%로 높은 저해율을 나타내었고, 열수추출물이 다소 높게 나타났다. SOD 유사활성은 딸기즙과 열수추출물이 32.5%, 38.0%로 열수추출물이 비교적 높은 SOD유사활성을 나타내었고, 냉동기간에 의한 항산화 효과는 비교적 차이가 없었다. 이러한 결과로 냉동 저장 시 항산화활성의 차이가 거의 없음으로 연중 원료의 안정적인 수급과 식품소재로 활용이 가능할 것으로 사료된다.

Abstract

The biological activities of strawberry were investigated during frozen storage. The concentrations of total phenolic content in strawberry juice and water extract were $2.342{\mu}g/ml\;and\;2.235{\mu}g/ml$, respectively. The total flavonoid content in strawberry juice and water extract were $200.36{\mu}g/ml\;and\;201.07 {\mu}g/ml$. respectively. Antioxidant activities of strawberry juice and water extract were determined. The DPPH of strawberry juice (94.2%) was higher than the water extract of strawberry (93.5%). ABTS of strawberry juice and water extract were 99.9% and 100.0%, respectively. Xanthine oxidase inhibitory activity and SOD-like activity of strawberry of water extracts were higher than those of strawberry juice. The changes in the antioxidant activity of strawberry was insignificant until 6 months of frozen storage. Therefore, it was expected that frozen storage of strawberry was useful preservation expedient for consistent supply of raw materials.

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이 논문을 인용한 문헌 (3)

  1. Bae, Ki-Suk ; Kih, Joon-Yeong ; Pyee, Jae-Ho 2008. "A Set of Anthocyanin Biosynthetic Genes are Differentially Expressed in Strawberry (Fragaria x ananassa cv Maehyang) during the Fruit Development Process" 생명과학회지 = Journal of life science, 18(2): 234~240 
  2. Cho, Jun-Gu ; Youn, Sun-Joo ; Lee, Eun-Tag ; Kim, Tae-Wan ; Kwoen, Dae-Jun 2009. "Change of Biological Activity of Melon (Cucumis melo L.) according to Frozen Storage Period" Journal of applied biological chemistry, 52(4): 200~204 
  3. Jung, Nan-Jung ; Kang, Yoon-Han 2012. "Comparison of the Physicochemical Quality Characteristics of Strawberry Jams by Processing Methods" 한국식품저장유통학회지 = Korean journal of food preservation, 19(3): 337~343 

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