Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Changes on the Components of Salted Eggplants during Storage

저장방법에 따른 절임 가지(시키부품종)의 성분 변화

  • Nam Hak-Sik (Faculty of Herbal Food Science, Daegu Haany University) ;
  • Kim Nam-Woo (Department of Herbal Biotechnology, Daegu Haany University) ;
  • Um Young-Chul (National Horticultural Research Institute) ;
  • Shin Seung-Ryeul (Faculty of Herbal Food Science, Daegu Haany University)
  • 남학식 (대구한의대학교 한방식품과학부) ;
  • 김남우 (대구한의대학교 한방생명자원학과) ;
  • 엄영철 (농촌진흥청 원예연구소) ;
  • 신승렬 (대구한의대학교 한방식품과학부)
  • Published : 2004.09.01
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Abstract

This study was carried out to investigate the changes on the components of salted eggplant(shikibu) during storage. The contents of total and reducing sugars were decreased during storage, and the tendency of decrease was lower in the salted eggplants of vacuum packing storage than in the salted eggplants of rice bran immersion storage. The contents of acetic and malic acid were higher than other organic acids. The content of acetic acid was increased during storage, but malic acid was decrease. The major amino acid were valine, leucine, aspartic acid, glutamic acid. The content of essential amino acids was increased during storage. Aspartic acid, alanine, cystine and proline were high content of free amino acids. The contents of phosphoserine, taurine, Y-aminoisobutyric acid and hydroxyproline were higher than others. Posphoserine content was decreased during storage, but Y-aminoisobutyric acid was increased to 5 times of fresh eggplant at 20 days of storage.

본 연구는 일본 수출용으로 재배되고 있는 시키부 품종의가지에 대하여 반응표면 분석을 통하여 최적조건으로 염절임 한 후 저장기간 및 저장방법에 따른 품질의 변화에 대하여 조사연구하였다. 시키부 품종의 총당 및 환원당 함량은저장방법에 관계없이 저장기간이 길어질수록 감소하였고 침지저장한 것에 비해 진공포장한 것의 변화가 적었다. 유기산은 acetic acid와 malic acid의 함량이 높았으며, 저장기간이길어질수록 acetic acid의 함량은 증가하는데 반해 malic acid의 함량은 감소하였다. 주요한 구성아미노산은 valine, leucine,aspartic acid, glutamic acid 이었으며 진공포장한 것의 필수아미노산 함량은 감소하다가 증가하였으나 침지한 것은 저장기간 동안 계속 증가하여 저장 20일째에는 진공포장한 방법보다 100 mg 정도의 차이를 보였다. 유리아미노산은 asparticacid, alanine, cystine과 Uoline 등의 함량이 높았고, 저장기간이 길어질수록 모든 방법에서 증가하였는데 특히, 침지 저장한 가지에서 그 함량이 높았다. 또한 아미노산 유도체는phosphoserine, taurine, Y-aminoisobufric acid 및 hydroxypmline의 함량이 높았고, 저장 중에 phosphoserine의 함량은 감소하였는데반해 Y-aminoisobutric acid는 진공포장하여 20일 동안 저장하였더니 생가지에 비해 5배의 증가를 나타내었다.

Keywords

References

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