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우즈베키스탄 고려인 제조 장류의 품질특성

Quality characteristics of Korean-Uzbekistanis fermented soybean paste

  • 서보영 (국립농업과학원 농식품자원부) ;
  • 엄정선 (국립농업과학원 농식품자원부) ;
  • 송진 (국립농업과학원 농식품자원부) ;
  • 백성열 (국립농업과학원 농식품자원부) ;
  • 김재현 (국립농업과학원 농식품자원부) ;
  • 박신영 (국립농업과학원 농식품자원부) ;
  • 최혜선 (국립농업과학원 농식품자원부)
  • Seo, Bo Young (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Eom, Jeong Seon (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Song, Jin (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Baek, Sung Yeol (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Kim, Jae Hyun (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Park, Shin Young (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Choi, Hye Sun (Department of Agrofood Resources, National Academy of Agricultural Science, RDA)
  • 투고 : 2015.02.02
  • 심사 : 2015.04.10
  • 발행 : 2015.06.30

초록

저온건조한 늦가을에 제조되는 한국식전통장류와는 달리 우즈베키스탄에서 한식장류는 보통 건조하고 높은 기온의 여름에 제조된다. 우즈베키스탄 시중 고려인에 의해 만들어진 된장 9종을 수집하여 품질특성을 분석하고자 protease활성, amylase활성, 아미노태 질소 함량, 환원당 함량 및 일반세균수를 조사하였다. 그 결과, 일반 세균 수는 7.24~8.79 Log CFU/g 범위의 값을 타나 내었다. Protease활성의 경우 3.98.28~832.57 unit/g 범위로 다양한 값을 나타내었고, CON에 비해 우즈베키스탄 시판 장류가 높은 protease 활성을 나타내었다. Amylase 활성은 C(10.82 unit/g)를 제외한 나머지 장류가 CON에 비해 높은 활성도를 보였다. 그 중에서도 UK-SP I(47.98 unit/g) 장류가 유의적으로 가장 높은 활성을 나타냈다. 아미노태 질소 함량을 측정한 결과 protease의 활성이 높았던 시료 B(832.57 unit/g), D(807.81 unit/g), H(630.67 unit/g) 에서는 아미노태 질소 함량 또한 높게 나타나는 경향을 보였다. 환원당 함량을 측정한 결과 0.95~3.43%/g 의 범위를 나타냈으며, D와 E가 3.39%/g 와 3.43%/g의 함량을 보여 환원당 함량이 가장 높게 측정되었다. 결론적으로, 우즈베키스탄 장류는 저온저습의 늦은 가을에 제조되는 한국의 장과 매우 다른 환경인 고온저습에서 자연발효로 제조되었음에도 불구하고, 비교적 한국식 장과 매우 유사한 품질특성을 가졌다. 한국에서 유래되어 고려인에 의해 계승되고 있는 장류의 미생물학적 관점 및 식문화적인 관점의 연구가 지속적으로 이루어져야 되겠다.

Many Koreans, who are resident in Uzbekistan and Central Asia, are still avid fans of the Korean traditional soybean paste. No research study has been conducted on the Korean-Uzbekistanis soybean paste. The purpose of this study was to investigate the quality characteristics of the Korean-Uzbekistanis fermented soybean paste. Nine kinds of soybean pastes prepared by Korean-Uzbekistanis were collected, and their physiochemical properties (protease activity, amylase activity, amino type nitrogen content, reducing-sugar contents, and aerobic bacterial count) have been analyzed. The Korean-Uzbekistanis' fermented soybean paste (KU-SP) showed higher protease activity than the Korean fermented soybean paste (K-SP). The protease activities of KU-SP B, D, and H were 832, 807 and 630 unit/g, respectively, which were significantly different from others. In addition, the content of amino-type nitrogen in KU-SP B, D, and H were 777 mg%, 686 mg%, and 705 mg%, respectively. In the meanwhile, ${\alpha}$-amylase activities showed wide ranges starting from 10.82 to 47.98 unit/g. The KU-SP values, except for the KU-SP C, have shown higher activities than the K-SP. The reduced sugar content and totoal aerobic bacteria number were within the range of 0.55~3.43%/g and 7.24~8.79 log CFU/g, respectively. Finally, this research provided the basic data and information for the quality characteristics of commercial soybean paste prepared by the Korean-Uzbekistanis. These basic data can be useful for understanding the Korean food culture in Central Asia.

키워드

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