Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Changes in physicochemical properties of Peucedanum japonicum Thunb. after blanching

Blanching에 따른 갯기름 나물의 이화학적 특성 변화

  • Received : 2013.04.23
  • Accepted : 2013.10.14
  • Published : 2013.10.30
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Abstract

This study was conducted to investigate the changes in the physicochemical properties of Peucedanum japonicum Thunb. after blanching. After blanching treatment, the crude protein content decreased but did not affect the crude fat, crude ash and carbohydrate contents of P. japonicum. All the detected free sugar contents decreased after blanching, but the total free sugar content decreased by 14.8% from that of the raw P. japonicum after blanching. The total amino acid and essential amino acid contents of the blanched P. japonicum. decreased by 10.75% and 15.22% from those of the raw P. japonicum. There were no differences in the contents of the total fatty acid between the raw and blanched P. japonicum. The total organic acid content decreased by 37.03% from that of the raw P. japonicum. after the blanching, and the reduction of the acetic acid was largest in the organic acid. The vitamin A, C and E contents decreased by 20.20%, 8.23% and 35.59% after the blanching. The total mineral content of the blanched P. japonicum. decreased by 21.84% after the blanching. The nutrients in the P. japonicum were essential amino acid, vitamin C, minerals, but these were reduced after the blanching. Therefore, the blanching conditions that can reduce nutrient loss of P. japonicum must be established.

본 연구는 주로 blanching하여 나물로 섭취되고 있는 갯기름나물을 데침 과정에 의한 일반성분 및 영양성분 함량변화를 측정하였다. Blanching에 의해 조지방, 조회분 및 탄수화물의 함량은 유의적인 차이는 없었으나, 조단백질의 함량은 유의적으로 감소하였다. 갯기름나물의 검출된 모든 유리당의 함량 모두 blanching에 의해 감소되어, 총 유리당 함량은 14.8% 감소되었다. 생 갯기름나물에 비하여 데친 갯기름나물의 총 구성 아미노산 및 필수 아미노산의 함량의 함량은 각각 10.75%와 15.22% 감소되었고, 검출된 모든 구성 아미노산의 함량 모두 blanching에 의해 감소되었다. 총 지방산 함량은 blanching 전후 유의차가 없었다. 총 유기산 함량은 blanching에 의해 37.03% 감소되었고, 유기산 중 acetic acid의 감소가 가장 크게 나타났다. Blanching에 의해 비타민 A, E 및 C의 함량은 각각 20.20%, 8.23% 및 35.59% 감소되었다. 총 무기질 함량은 21.84% 감소되었고, 무기질 중 K 함량의 손실이 가장 컸다. 본 연구 결과 갯기름 나물은 필수 아미노산, 비타민 C, 무기질 등 유용한 영양성분들을 함유하고 있어 갯기름나물을 이용한 기능성 소재로의 활용 가치가 높을 것으로 생각되므로, blanching에 의해 대부분의 영양성분들이 감소되어 향후 이러한 성분들을 유지할 수 있는 blanching 조건 설정이 필요하다.

Keywords

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