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Desalting Processing and Quality Characteristics of Salt-Fermented Anchovy Sauce Using a Spirit

주정을 이용한 멸치액젓의 탈염공정 및 품질특성

  • Jang, Mi-Soon (Food and Safety Research Center, National Fisheries Research & Development Institute) ;
  • Park, Hee-Yeon (Food and Safety Research Center, National Fisheries Research & Development Institute) ;
  • Nam, Ki-Ho (Food and Safety Research Center, National Fisheries Research & Development Institute)
  • 장미순 (국립수산과학원 식품안전과) ;
  • 박희연 (국립수산과학원 식품안전과) ;
  • 남기호 (국립수산과학원 식품안전과)
  • Received : 2012.10.15
  • Accepted : 2012.11.23
  • Published : 2012.12.30

Abstract

To establish a new manufacturing process of low-salted fermented anchovy sauce, commercial fermented anchovy sauce with 23% NaCl was desalted using a spirit. The proximate composition, total nitrogen, amino nitrogen, Escherichia coli, and total and free amino acid contents were analyzed to evaluate the quality characteristics of commercial salted fermented anchovy sauce (CFAS) and low-salt fermented anchovy sauce by desalting processing (LFAS). The salinity of saltwater and fermented anchovy sauce decreased with an increase in the spirit added to 23% NaCl saltwater and 23% NaCl commercial fermented anchovy sauce. The total nitrogen and amino nitrogen contents were higher in LFAS than in CFAS. The major amino acids that were commonly found in CFAS and LFAS were glutamic acid, alanine, lysine and leucine. Basic data were provided for commodification research on low-salt fermented anchovy sauce, which is very important for the diet of humans.

본 연구에서는 시판 멸치액젓에 주정을 일정한 비율로 첨가하여 소금의 용해도를 낮춤으로서 소금을 석출시키는 탈염방법을 활용하여 저염 멸치액젓의 제조공정을 확립하고자 하였다. 또한 시판 멸치액젓과 주정을 활용하여 탈염처리 한 저염 멸치액젓의 품질 특성을 비교하기 위해 일반성분, 총질소, 아미노태 질소, 대장균 및 아미노산 함량을 비교분석 하였다. 시판 멸치액젓에 대해 주정의 첨가량이 증가할수록 멸치액젓의 염도는 낮아지는 경향을 보였다. 즉, 멸치액젓 100 mL에 대해 주정을 각각 100% 및 300%(v/v)를 첨가한 경우에 멸치액젓의 염도는 14.3% 및 10.3%를 나타내었다. 이와 같은 현상은 염도 23%인 식염수 용액의 실험에서도 같은 경향을 보였다. 탈염처리 한 멸치 액젓의 총질소 함량은 1.20%이었고, 아미노태 질소 함량은 784.03 mg/100 g으로, 시판 멸치액젓보다 높은 함량을 나타내었다. 시판 멸치액젓과 탈염처리 한 저염 멸치액젓의 주요 총아미노산은 glutamic acid, alanine, lysine 및 leucine이었고, 필수아미노산의 함량은 탈염처리 한 멸치액젓에서 높게 나타났다. 또한, 시판 멸치액젓과 탈염처리 한 저염 멸치액젓의 주요 유리아미노산은 공통적으로 glutamic acid, leucine, alanine, valine, lysine 및 isoleucine 이었다. 이상의 결과에서 주정을 이용하여 소금을 원하는 농도만큼 특별한 장비없이 효과적으로 제거할 수 있는 멸치액젓의 탈염공정을 확립할 수 있었다. 또한 주정을 사용하여 멸치액젓을 탈염하는 방법은 총질소, 아미노태 질소 함량 및 아미노산 함량에 긍정적인 영향을 주어 맛을 향상시켜 줄 수 있을 것으로 기대되며, 본 연구의 결과로 저염 멸치액젓 상품화 연구의 기초자료로 활용 및 인류 보건향상에 크게 기여할 것으로 전망된다.

Keywords

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