Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Analysis of the Physicochemical Properties and Antioxidative Activity of Napa Cabbage Pickle

저장기간 동안 배추 피클의 이화학적 특성 및 항산화 활성 분석

  • Son, Hae-Reon (Department of Biomedical and Electronic Engineering, Chonnam National University) ;
  • Oh, Sun-Kyung (Department of Biomedical and Electronic Engineering, Chonnam National University) ;
  • Bae, Sang-Ok (Department of Culinary Art, Chodang University) ;
  • Choi, Myeong-Rak (Department of Biomedical and Electronic Engineering, Chonnam National University)
  • 손혜련 (전남대학교 바이오 전자 메디컬 공학 협동과정) ;
  • 오선경 (전남대학교 바이오 전자 메디컬 공학 협동과정) ;
  • 배상옥 (초당대학교 조리과학과) ;
  • 최명락 (전남대학교 바이오 전자 메디컬 공학 협동과정)
  • Received : 2016.06.13
  • Accepted : 2016.08.30
  • Published : 2016.11.30
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Abstract

The principal objective of this fundamental research was to analyze the physicochemical properties the and antioxidative activity of Napa cabbage pickle (NCP) for development of low-salt pickles. NCP-1 was a smaller than NCP at amount soy sauce (10%). The pH of NCP and NCP-1 were $4.51{\pm}0.15$, $4.85{\pm}0.08$ immediately after preparation. The pH of NCP and NCP-1 was reduced to $4.08{\pm}0.05$ and $4.31{\pm}0.12$ over time during 60 days of storage. The acidity of the NCP and NCP-1 immediately after preparation were 0.51% and 0.38% and increased to 0.67% and 0.56% after 60 days of storage. The salinity for the NCP ranged from 1.71-2.22% and NCP-1 ranged from 1.18-1.63%. The L value, which indicates the lightness, was the highest at day 0 and the lowest at 60 day. The tensile strength value of NCP was $10.9{\pm}0.05kgf/cm^2$ and NCP-1 in $11.84{\pm}0.11kgf/cm^2$ at day 0 and then significantly decreased with time in storage. The cutting force of NCP was $1004{\pm}7.12gf/cm^2$ and NCP-1 in $845{\pm}5.27gf/cm^2$ at day 0, which increased over time in storage. The overall acceptability of NCP was the highest at day 30, but the overall acceptability of NCP-1 was the highest at day 45. NCP-1 extracts at day 60 showed the highest antioxidant activity of 66.04%, whereas the NCP extract at day 0 showed the lowest antioxidant activity of 45.41%. These results showed that depending on the content of the seasoning pickle difference in the antioxidant activity. Thus, the best pickled Napa cabbage is determined by a smaller amount soy sauce in NCP-1, and the results could provide a basis for improving the availability and quality of Napa cabbage.

본 연구에서는 배추를 이용하여 저염 피클을 개발하기 위한 기초적인 연구로 저장기간 중 배추 피클의 이화학적 특성 및 항산화 활성에 대해 분석하였다. 조미액 함량을 달리한 각각의 배추 피클(NCP, NCP-1)을 $-4^{\circ}C$에서 60일 동안 저장하였다. NCP 및 NCP-1의 pH는 저장 0일째 각각 $4.51{\pm}0.15$, $4.85{\pm}0.08$로 나타났으며 이후 감소하였다. 산도는 NCP 및 NCP-1에서 저장 0일째 각각 0.51%, 0.38%로 나타났으며 이후 각각 0.67%, 0.56%로 증가하였다. 염도는 1.77~2.22% 범위를 유지하였다. 색도의 L값은 NCP 및 NCP-1 모두 0일째에서 최대값을 나타났으며 이후 감소하였다. 또한, 색도의 a값은 증가하였고, b값은 감소하여 갈변 현상이 진행된 것을 알 수 있었다. 물성의 인장강도는 저장 0일째 NCP에서 $10.90{\pm}0.05kgf/cm^2$, NCP-1에서는 $11.84{\pm}0.05kgf/cm^2$로 최소값이 나타났으며 절단력은 저장 0일째 NCP에서 $1004{\pm}7.12gf/cm^2$, NCP-1에서는 $845{\pm}5.27gf/cm^2$로 최대값이 나타났다. 전체적인 기호도는 NCP-1에서 저장 45일째 $4.25{\pm}0.10$로 최대값이 나타났으며 항산화 활성은 저장 60일째 66.04%로 최대값이 나타났다. 60일간 저장기간 동안에도 연부현상이 발생하지 않았다. 그래서 최적의 배추 피클은 조미액 중 간장함량을 줄인 NCP-1이 적합하다고 판단된다. 본 연구 결과는 배추가 저염 피클제품으로서 이용 가능성이 있음을 제시하고, 수입 위주의 피클을 대체함과 동시에 배추를 이용한 식품의 다양화에 기여 할 수 있을 것이라 생각된다.

Keywords

References

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